springboot+mybatis+druid+atomikos框架搭建及测试

 前言

因为最近公司项目升级，需要将外网数据库的信息导入到内网数据库内。于是找了一些springboot多数据源的文章来看，同时也亲自动手实践。可是过程中也踩了不少的坑，主要原因是我看的文章大部分都是springboot 1.X版本的。

于是我就打算把这次搭建springboot+mybatis+druid+atomikos的框架过程记录下来，方便大家借鉴，也方便自己以后使用。这里不单单记录搭建过程，同时也会对一些配置文件进行说明，以及我在看别人文章并实践时碰到的一些坑的说明。

开发环境

系统：windows10 

开发工具：IDEA2019.1

jdk版本： jdk1.8.0_144

springboot版本：2.1.7

数据库：mysql

涉及的框架及工具：mybatis，druid，atomikos，通用mapper，pagehelper，mybatis-generator，freemarker，layui。

 

新建项目

1.IDEA   菜单栏——file——New——Project...

2.选择Spring Initializr——选择jdk版本后，next

3.设置项目名称，打包方式等配置

这里有个位置要说明下。Packaging下有两个选项，一个是Jar，另一个是War。

区别是Jar打包成jar包后包含tomcat的lib，可以直接通过命令行部署，但War则依赖tomcat等容器。

4.组件选择

选择如下：

Spring Boot DevTools： 用于测试时项目的热部署

Spring Web Starter：  包含springMVC，tomcat等容器

Apache Freemaker： 前端模版

MySQL Driver： 连接mysql

MyBatis 

5. 选择文件位置后，完成即可

pom.xml如下代码

需要注意的是，在plugins部分增加了mybatis-generator自动生成实体类和mapper的配置

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.7.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.zcph</groupId>
    <artifactId>oaonline</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>oaonline</name>
    <description>zcph online oa</description>

    <properties>
        <java.version>1.8</java.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-freemarker</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-aop</artifactId>
        </dependency>
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>2.1.0</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <scope>runtime</scope>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <!-- 修改下版本号，因为我用的mysql版本是5.7，而且5.1.34在多数据源时候会报错-->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.36</version>
            <scope>runtime</scope>
        </dependency>
        <!--druid连接池依赖-->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid-spring-boot-starter</artifactId>
            <version>1.1.10</version>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>1.2.58</version>
        </dependency>
        <!--aspectj组件-->
        <dependency>
            <groupId>org.aspectj</groupId>
            <artifactId>aspectjweaver</artifactId>
            <version>1.9.4</version>
        </dependency>
        <!--通用mapper-->
        <dependency>
            <groupId>tk.mybatis</groupId>
            <artifactId>mapper-spring-boot-starter</artifactId>
            <version>2.1.5</version>
        </dependency>
        <!--pagehelper 分页插件-->
        <dependency>
            <groupId>com.github.pagehelper</groupId>
            <artifactId>pagehelper-spring-boot-starter</artifactId>
            <version>1.2.12</version>
        </dependency>
        <!--分布式事务-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-jta-atomikos</artifactId>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <configuration>
                    <!--fork :  如果没有该项配置，这个devtools不会起作用，即应用不会restart -->
                    <fork>true</fork>
                    <!--支持静态文件热部署-->
                    <addResources>true</addResources>
                </configuration>
            </plugin>
            <!--如果要发布生成版本这部分代码要禁止掉，本地开发开启，用于自动生成mybatis的相应类和xml-->
            <plugin>
                <groupId>org.mybatis.generator</groupId>
                <artifactId>mybatis-generator-maven-plugin</artifactId>
                <version>1.3.5</version>
                <dependencies>
                    <!--配置这个依赖主要是为了等下在配置mybatis-generator.xml的时候可以不用配置classPathEntry这样的一个属性，避免代码的耦合度太高-->
                    <dependency>
                        <groupId>mysql</groupId>
                        <artifactId>mysql-connector-java</artifactId>
                        <version>5.1.36</version>
                    </dependency>
                    <dependency>
                        <groupId>tk.mybatis</groupId>
                        <artifactId>mapper</artifactId>
                        <version>3.4.0</version>
                    </dependency>
                </dependencies>
                <executions>
                    <execution>
                        <id>Generate MyBatis Artifacts</id>
                        <phase>package</phase>
                        <goals>
                            <goal>generate</goal>
                        </goals>
                    </execution>
                </executions>
                <configuration>
                    <!--允许移动生成的文件 -->
                    <verbose>true</verbose>
                    <!-- 是否覆盖 -->
                    <overwrite>true</overwrite>
                    <!-- 自动生成的配置 -->
                    <configurationFile>src/main/resources/mybatis-generator.xml</configurationFile>
                </configuration>
            </plugin>

            <plugin>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                </configuration>
            </plugin>
        </plugins>
    </build>

</project>

 

项目整体结构

application.properties和application.yml

代码如下，在application.properties中并没有数据库连接的相关配置。而是放到了application.yml中。

在application.properties中配置了mybatis，通用mapper，pagehelper，freemaker,项目名称等配置。

在application.yml中配置了数据源的信息

#mybatis
mybatis.type-aliases-package=com.zcph.oaonline.entity
mybatis.mapper-locations=classpath:mapper/*.xml
# mybatis日志打印sql
logging.level.com.zcph.oaonline.mapper=debug
logging.level.com.zcph.oaonline.mapper2=debug
spring.servlet.multipart.max-file-size=100MB
spring.servlet.multipart.max-request-size=100MB
#mappers 多个接口时逗号隔开
mapper.mappers=com.zcph.oaonline.util.MyMapper
mapper.not-empty=false
mapper.identity=MYSQL

#pagehelper
pagehelper.helperDialect=mysql
pagehelper.reasonable=true
pagehelper.supportMethodsArguments=true
pagehelper.params=count=countSql

########################################################
###FREEMARKER (FreeMarkerAutoConfiguration)
########################################################
spring.freemarker.allow-request-override=false
#本机调试时，配置项template_update_delay=0，这样就关闭了模板缓存。注意线上环境要开启缓存
spring.freemarker.cache=false
spring.freemarker.settings.template_update_delay=0
spring.freemarker.check-template-location=true
spring.freemarker.charset=UTF-8
spring.freemarker.content-type=text/html
spring.freemarker.expose-request-attributes=false
spring.freemarker.expose-session-attributes=false
spring.freemarker.expose-spring-macro-helpers=false
spring.freemarker.prefix=
#若在freemarker获取request对象，在spring boot 在application.properties可以这么配置
spring.freemarker.request-context-attribute=request
#spring.freemarker.settings.*=
spring.freemarker.suffix=.ftl
#template-loader-path表示所有的模板文件都放在该目录下
spring.freemarker.template-loader-path=classpath:/templates/ 
#spring.freemarker.view-names= #whitelistofviewnamesthatcanberesolved

#static-locations可以自定义静态资源路径，不过会覆盖springboot默认路径
spring.resources.static-locations=classpath:/META-INF/resources/,classpath:/resources/,classpath:/static/,classpath:/public/
#在这个最末尾的file:${web.upload-path}之所有要加file:是因为指定的是一个具体的硬盘路径，其他的使用classpath指的是系统环境变量
#spring.resources.static-locations=classpath:/META-INF/resources/,classpath:/resources/,classpath:/static/,classpath:/public/,file:${web.upload-path}

spring.freemarker.settings.auto_import=ftl/spring.ftl as com
spring.freemarker.settings.datetime_format=yyyy-MM-dd
#兼容传统模式
spring.freemarker.settings.classic_compatible=true
#表示访问该路径时代表请求静态资源，用户可以直接访问该请求路径中的静态资源
spring.mvc.static-path-pattern=/static/**
server.port=9090
server.servlet.context-path=/oa_online
server.servlet.session.timeout=10000
#开发模式端口，因为我同时测试多个项目，端口冲突了
spring.devtools.livereload.port=35730 

spring:
  datasource:
    type: com.alibaba.druid.pool.xa.DruidXADataSource
    druid:

      systemDB:
        name: systemDB
        url: jdbc:mysql://192.168.128.244:3306/online_oa?useUnicode=true&characterEncoding=utf-8&useSSL=false
        username: root
        password: zcoa
        # 下面为连接池的补充设置，应用到上面所有数据源中
        # 初始化大小，最小，最大
        initialSize: 5
        minIdle: 5
        maxActive: 20
        # 配置获取连接等待超时的时间
        maxWait: 60000
        # 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒
        timeBetweenEvictionRunsMillis: 60000
        # 配置一个连接在池中最小生存的时间，单位是毫秒
        minEvictableIdleTimeMillis: 300000
        validationQuery: SELECT 1
        validationQueryTimeout: 10000
        testWhileIdle: true
        testOnBorrow: false
        testOnReturn: false
        # 打开PSCache，并且指定每个连接上PSCache的大小
        poolPreparedStatements: true
        maxPoolPreparedStatementPerConnectionSize: 20
        filters: stat,wall
        # 通过connectProperties属性来打开mergeSql功能；慢SQL记录
        connectionProperties: druid.stat.mergeSql=true;druid.stat.slowSqlMillis=5000
        # 合并多个DruidDataSource的监控数据
        useGlobalDataSourceStat: true

      businessDB:
        name: businessDB
        url: jdbc:mysql://192.168.128.61:3306/bgc?useUnicode=true&characterEncoding=utf-8&useSSL=false&serverTimezone=GMT
        username: root
        password: root
        # 下面为连接池的补充设置，应用到上面所有数据源中
        # 初始化大小，最小，最大
        initialSize: 5
        minIdle: 5
        maxActive: 20
        # 配置获取连接等待超时的时间
        maxWait: 60000
        # 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒
        timeBetweenEvictionRunsMillis: 60000
        # 配置一个连接在池中最小生存的时间，单位是毫秒
        minEvictableIdleTimeMillis: 300000
        validationQuery: SELECT 1
        validationQueryTimeout: 10000
        testWhileIdle: true
        testOnBorrow: false
        testOnReturn: false
        # 打开PSCache，并且指定每个连接上PSCache的大小
        poolPreparedStatements: true
        maxPoolPreparedStatementPerConnectionSize: 20
        filters: stat,wall
        # 通过connectProperties属性来打开mergeSql功能；慢SQL记录
        connectionProperties: druid.stat.mergeSql=true;druid.stat.slowSqlMillis=5000
        # 合并多个DruidDataSource的监控数据
        useGlobalDataSourceStat: true

  #jta相关参数配置
  jta:
    log-dir: classpath:tx-logs
    transaction-manager-id: txManager

 数据源配置及druid配置

DruidConfig.java

实现数据源注册，druid注册和分布式事务管理器的注册

package com.zcph.oaonline.config;

import com.alibaba.druid.filter.stat.StatFilter;
import com.alibaba.druid.support.http.StatViewServlet;
import com.alibaba.druid.support.http.WebStatFilter;
import com.alibaba.druid.wall.WallConfig;
import com.alibaba.druid.wall.WallFilter;
import com.atomikos.icatch.jta.UserTransactionImp;
import com.atomikos.icatch.jta.UserTransactionManager;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.jta.atomikos.AtomikosDataSourceBean;
import org.springframework.boot.web.servlet.FilterRegistrationBean;
import org.springframework.boot.web.servlet.ServletRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;
import org.springframework.core.env.Environment;
import org.springframework.transaction.jta.JtaTransactionManager;

import javax.sql.DataSource;
import javax.transaction.UserTransaction;
import java.util.Properties;

/**
 * 多数据源和Druid配置
 */
@Configuration
public class DruidConfig {

    /**
     * 数据源1配置
     * @param env
     * @return
     */
    @Bean(name = "systemDataSource")
    @Primary
    @Autowired
    public DataSource systemDataSource(Environment env) {
        AtomikosDataSourceBean ds = new AtomikosDataSourceBean();
        Properties prop = build(env, "spring.datasource.druid.systemDB.");
        ds.setXaDataSourceClassName("com.alibaba.druid.pool.xa.DruidXADataSource");
        ds.setUniqueResourceName("systemDB");
        ds.setPoolSize(5);
        ds.setXaProperties(prop);
        return ds;
    }

    /**
     * 数据源2配置
     * @param env
     * @return
     */
    @Autowired
    @Bean(name = "businessDataSource")
    public AtomikosDataSourceBean businessDataSource(Environment env) {
        AtomikosDataSourceBean ds = new AtomikosDataSourceBean();
        Properties prop = build(env, "spring.datasource.druid.businessDB.");
        ds.setXaDataSourceClassName("com.alibaba.druid.pool.xa.DruidXADataSource");
        ds.setUniqueResourceName("businessDB");
        ds.setPoolSize(5);
        ds.setXaProperties(prop);
        return ds;
    }

    /**
     * 注入事物管理器
     * @return
     */
    @Bean(name = "xatx")
    public JtaTransactionManager regTransactionManager () {
        UserTransactionManager userTransactionManager = new UserTransactionManager();
        UserTransaction userTransaction = new UserTransactionImp();
        return new JtaTransactionManager(userTransaction, userTransactionManager);
    }

    /**
     * 从配置文件中加载数据源信息
     * @param env
     * @param prefix
     * @return
     */
    private Properties build(Environment env, String prefix) {
        Properties prop = new Properties();
        prop.put("url", env.getProperty(prefix + "url"));
        prop.put("username", env.getProperty(prefix + "username"));
        prop.put("password", env.getProperty(prefix + "password"));
        prop.put("driverClassName", env.getProperty(prefix + "driverClassName", ""));
        prop.put("initialSize", env.getProperty(prefix + "initialSize", Integer.class));
        prop.put("maxActive", env.getProperty(prefix + "maxActive", Integer.class));
        prop.put("minIdle", env.getProperty(prefix + "minIdle", Integer.class));
        prop.put("maxWait", env.getProperty(prefix + "maxWait", Integer.class));
        prop.put("poolPreparedStatements", env.getProperty(prefix + "poolPreparedStatements", Boolean.class));
        prop.put("maxPoolPreparedStatementPerConnectionSize",
                env.getProperty(prefix + "maxPoolPreparedStatementPerConnectionSize", Integer.class));
        prop.put("maxPoolPreparedStatementPerConnectionSize",
                env.getProperty(prefix + "maxPoolPreparedStatementPerConnectionSize", Integer.class));
        prop.put("validationQuery", env.getProperty(prefix + "validationQuery"));
        prop.put("validationQueryTimeout", env.getProperty(prefix + "validationQueryTimeout", Integer.class));
        prop.put("testOnBorrow", env.getProperty(prefix + "testOnBorrow", Boolean.class));
        prop.put("testOnReturn", env.getProperty(prefix + "testOnReturn", Boolean.class));
        prop.put("testWhileIdle", env.getProperty(prefix + "testWhileIdle", Boolean.class));
        prop.put("timeBetweenEvictionRunsMillis",
                env.getProperty(prefix + "timeBetweenEvictionRunsMillis", Integer.class));
        prop.put("minEvictableIdleTimeMillis", env.getProperty(prefix + "minEvictableIdleTimeMillis", Integer.class));
        prop.put("filters", env.getProperty(prefix + "filters"));
        return prop;
    }

    /**
     * druid访问配置
     * @return
     */
    @Bean
    public ServletRegistrationBean druidServlet() {
        ServletRegistrationBean servletRegistrationBean = new ServletRegistrationBean(new StatViewServlet(), "/druid/*");
        //控制台管理用户，加入下面2行 进入druid后台就需要登录
        servletRegistrationBean.addInitParameter("loginUsername", "admin");
        servletRegistrationBean.addInitParameter("loginPassword", "admin");
        return servletRegistrationBean;
    }

    @Bean
    public FilterRegistrationBean filterRegistrationBean() {
        FilterRegistrationBean filterRegistrationBean = new FilterRegistrationBean();
        filterRegistrationBean.setFilter(new WebStatFilter());
        filterRegistrationBean.addUrlPatterns("/*");
        filterRegistrationBean.addInitParameter("exclusions", "*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*");
        filterRegistrationBean.addInitParameter("profileEnable", "true");
        return filterRegistrationBean;
    }

    @Bean
    public StatFilter statFilter(){
        StatFilter statFilter = new StatFilter();
        statFilter.setLogSlowSql(true); //slowSqlMillis用来配置SQL慢的标准，执行时间超过slowSqlMillis的就是慢。
        statFilter.setMergeSql(true); //SQL合并配置
        statFilter.setSlowSqlMillis(1000);//slowSqlMillis的缺省值为3000，也就是3秒。
        return statFilter;
    }

    @Bean
    public WallFilter wallFilter(){
        WallFilter wallFilter = new WallFilter();
        //允许执行多条SQL
        WallConfig config = new WallConfig();
        config.setMultiStatementAllow(true);
        wallFilter.setConfig(config);
        return wallFilter;
    }
}

MybatisDatasourceConfig.java
数据源1的sqlSessionFactory和MapperScan扫描包的配置。

package com.zcph.oaonline.config;

import com.zcph.oaonline.util.MyMapper;
import org.apache.ibatis.session.SqlSessionFactory;
import org.mybatis.spring.SqlSessionFactoryBean;
import org.mybatis.spring.SqlSessionTemplate;
import tk.mybatis.spring.annotation.MapperScan;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
import org.springframework.core.io.support.ResourcePatternResolver;

import javax.sql.DataSource;

/**
 * @description
 */
@Configuration
// 精确到 mapper 目录，以便跟其他数据源隔离
@MapperScan(basePackages = "com.zcph.oaonline.mapper", markerInterface = MyMapper.class, sqlSessionFactoryRef = "sqlSessionFactory")
public class MybatisDatasourceConfig {

    @Autowired
    @Qualifier("systemDataSource")
    private DataSource ds;

    @Bean
    public SqlSessionFactory sqlSessionFactory() throws Exception {
        SqlSessionFactoryBean factoryBean = new SqlSessionFactoryBean();
        factoryBean.setDataSource(ds);
        //指定mapper xml目录
        ResourcePatternResolver resolver = new PathMatchingResourcePatternResolver();
        factoryBean.setMapperLocations(resolver.getResources("classpath:mapper/*.xml"));
        return factoryBean.getObject();

    }

    @Bean
    public SqlSessionTemplate sqlSessionTemplate() throws Exception {
        SqlSessionTemplate template = new SqlSessionTemplate(sqlSessionFactory()); // 使用上面配置的Factory
        return template;
    }

}

MybatisDatasource2Config.java
数据源2的sqlSessionFactory和MapperScan扫描包的配置。

package com.zcph.oaonline.config;

import com.zcph.oaonline.util.MyMapper;
import org.apache.ibatis.session.SqlSessionFactory;
import org.mybatis.spring.SqlSessionFactoryBean;
import org.mybatis.spring.SqlSessionTemplate;
import tk.mybatis.spring.annotation.MapperScan;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
import org.springframework.core.io.support.ResourcePatternResolver;

import javax.sql.DataSource;

/**
 * @description
 */
@Configuration
// 精确到 mapper 目录，以便跟其他数据源隔离
@MapperScan(basePackages = "com.zcph.oaonline.mapper2", markerInterface = MyMapper.class, sqlSessionFactoryRef = "sqlSessionFactory2")
public class MybatisDatasource2Config {

    @Autowired
    @Qualifier("businessDataSource")
    private DataSource ds;

    @Bean
    public SqlSessionFactory sqlSessionFactory2() throws Exception {
        SqlSessionFactoryBean factoryBean = new SqlSessionFactoryBean();
        factoryBean.setDataSource(ds);
        //指定mapper xml目录
        ResourcePatternResolver resolver = new PathMatchingResourcePatternResolver();
        factoryBean.setMapperLocations(resolver.getResources("classpath:mapper2/*.xml"));
        return factoryBean.getObject();

    }

    @Bean
    public SqlSessionTemplate sqlSessionTemplate2() throws Exception {
        SqlSessionTemplate template = new SqlSessionTemplate(sqlSessionFactory2()); // 使用上面配置的Factory
        return template;
    }
}

扫描的包不同以及使用的sqlSessionFactory不同。

这里需要注意的一点是，在MybatisDatasourceConfig.java和MybatisDatasource2Config.java中在使用@MapperScan注解是引入的是tk.mybatis.spring.annotation.MapperScan。

这里之前我踩过坑，之前看别人的文章复制代码后，引入了org.mybatis.spring.annotation.MapperScan，这样就会报找不到对应方法的错：java.lang.NoSuchMethodException: tk.mybatis.mapper.provider.base.BaseSelectProvider.<init>()

如下图：只需引入正确的包后就可以了

 

 配置拦截器

CommonInterceptor.java 自定义拦截器，代码如下：

package com.zcph.oaonline.interceptor;

import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class CommonInterceptor implements HandlerInterceptor {

    /**
     * 自定义拦截器
     * 这里返回了访问路径，方便前台使用
     * @param httpServletRequest
     * @param httpServletResponse
     * @param o
     * @return
     * @throws Exception
     */
    @Override
    public boolean preHandle(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o) throws Exception {
        String path = httpServletRequest.getContextPath();
        String scheme = httpServletRequest.getScheme();
        String serverName = httpServletRequest.getServerName();
        int port = httpServletRequest.getServerPort();
        String basePath = scheme + "://" + serverName + ":" + port + path;
        httpServletRequest.setAttribute("basePath", basePath);
        return true;
    }

    @Override
    public void postHandle(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, ModelAndView modelAndView) throws Exception {

    }

    @Override
    public void afterCompletion(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, Exception e) throws Exception {

    }
}

CommonInterceptorConfig.java 注入自定义拦截器，设置静态资源以及处理前台返回值中文乱码问题

这个位置有个问题需要注意：这里是继承了WebMvcConfigurationSupport，但在其他文章中有的是继承了WebMvcConfigurerAdapter。

WebMvcConfigurerAdapter在spring5以后就被标记为过时了，而WebMvcConfigurationSupport方法一定要重写addResourceHandlers方法，否则静态资源会访问失效

package com.zcph.oaonline.interceptor;

import com.fasterxml.jackson.databind.ObjectMapper;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.converter.StringHttpMessageConverter;
import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.ViewControllerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport;

import java.nio.charset.Charset;
import java.util.List;

@Configuration
public class CommonInterceptorConfig extends WebMvcConfigurationSupport
{
    /**
     * 注入拦截器
     * @param registry
     */
    @Override
    public void addInterceptors(InterceptorRegistry registry) {
        registry.addInterceptor(new CommonInterceptor()).addPathPatterns("/**");
    }

    /**
     * 设置静态资源
     * @param registry
     */
    @Override
    protected void addResourceHandlers(ResourceHandlerRegistry registry) {
        registry.addResourceHandler("/static/**").addResourceLocations("classpath:/static/");
        super.addResourceHandlers(registry);
    }
    /**
     * 以前要访问一个页面需要先创建个Controller控制类，在写方法跳转到页面
     * 在这里配置后就不需要那么麻烦了，直接访问http://localhost:9090/toTest就跳转到test.ftl页面了
     *
     * @param registry
     */
    @Override
    public void addViewControllers(ViewControllerRegistry registry) {
        registry.addViewController("/toTest").setViewName("test");
        super.addViewControllers(registry);
    }

    @Override
    public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
        super.configureMessageConverters(converters);
        //解决中文乱码
        converters.add(responseBodyConverter());

        //解决： 添加解决中文乱码后的配置之后，返回json数据直接报错 500：no convertter for return value of type
        //或这个：Could not find acceptable representation
        converters.add(messageConverter());
    }
    //1.这个为解决中文乱码
    @Bean
    public HttpMessageConverter<String> responseBodyConverter() {
        StringHttpMessageConverter converter = new StringHttpMessageConverter(Charset.forName("UTF-8"));
        return converter;
    }
    //2.1：解决中文乱码后，返回json时可能会出现No converter found for return value of type: xxxx
    //或这个：Could not find acceptable representation
    //解决此问题如下
    public ObjectMapper getObjectMapper() {
        return new ObjectMapper();
    }

    //2.2：解决No converter found for return value of type: xxxx
    public MappingJackson2HttpMessageConverter messageConverter() {
        MappingJackson2HttpMessageConverter converter=new MappingJackson2HttpMessageConverter();
        converter.setObjectMapper(getObjectMapper());
        return converter;
    }
}

利用mybatis-generator生成对应实体和mapper和xml

因为我们要使用通用mapper，所以要新建下MyMapper接口

package com.zcph.oaonline.util;

import tk.mybatis.mapper.common.Mapper;
import tk.mybatis.mapper.common.MySqlMapper;
/**
 * 通用mapper
 * 继承自己的MyMapper
 */
public interface MyMapper<T> extends Mapper<T>, MySqlMapper<T> {
    //FIXME 特别注意，该接口不能被扫描到，否则会出错
    //FIXME 最后在启动类中通过MapperScan注解指定扫描的mapper路径：
}

在resources下的mybatis-generator.xml，这个是两个数据源的都有，只能1个1个的生成，要生成哪个注释另一个就行了。

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE generatorConfiguration
        PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN"
        "http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd">

<!--数据源1-->
<!--<generatorConfiguration>-->
<!--    &lt;!&ndash;加载配置文件，为下面读取数据库信息准备&ndash;&gt;-->
<!--    <properties resource="application.properties"/>-->

<!--    <context id="Mysql" targetRuntime="MyBatis3Simple" defaultModelType="flat">-->

<!--        <plugin type="tk.mybatis.mapper.generator.MapperPlugin">-->
<!--            &lt;!&ndash;其中tk.mybatis.mapper.generator.MapperPlugin很重要，用来指定通用Mapper对应的文件，这样我们生成的mapper都会继承这个通用Mapper&ndash;&gt;-->
<!--            <property name="mappers" value="com.zcph.oaonline.util.MyMapper" />-->
<!--            &lt;!&ndash;caseSensitive默认false，当数据库表名区分大小写时，可以将该属性设置为true&ndash;&gt;-->
<!--            <property name="caseSensitive" value="false"/>-->
<!--        </plugin>-->


<!--        &lt;!&ndash;数据库链接地址账号密码，这里由于我使用的是根据开发和生产分离的配置文件，所以这里直接写上了&ndash;&gt;-->
<!--        <jdbcConnection driverClass="com.mysql.jdbc.Driver"-->
<!--                        connectionURL="jdbc:mysql://192.168.128.244:3306/online_oa?useUnicode=true&amp;characterEncoding=utf-8&amp;useSSL=false"-->
<!--                        userId="root"-->
<!--                        password="zcoa">-->
<!--        </jdbcConnection>-->

<!--        <javaTypeResolver>-->
<!--            <property name="forceBigDecimals" value="false"/>-->
<!--        </javaTypeResolver>-->

<!--        &lt;!&ndash;生成Model类存放位置&ndash;&gt;-->
<!--        <javaModelGenerator targetPackage="com.zcph.oaonline.entity" targetProject="src/main/java">-->
<!--            <property name="enableSubPackages" value="true"/>-->
<!--            <property name="trimStrings" value="true"/>-->
<!--        </javaModelGenerator>-->

<!--        &lt;!&ndash;生成映射文件存放位置&ndash;&gt;-->
<!--        <sqlMapGenerator targetPackage="mapper" targetProject="src/main/resources">-->
<!--            <property name="enableSubPackages" value="true"/>-->
<!--        </sqlMapGenerator>-->

<!--        &lt;!&ndash;生成Dao类存放位置&ndash;&gt;-->
<!--        &lt;!&ndash; 客户端代码，生成易于使用的针对Model对象和XML配置文件 的代码-->
<!--                type="ANNOTATEDMAPPER",生成Java Model 和基于注解的Mapper对象-->
<!--                type="XMLMAPPER",生成SQLMap XML文件和独立的Mapper接口-->
<!--        &ndash;&gt;-->
<!--        <javaClientGenerator type="XMLMAPPER" targetPackage="com.zcph.oaonline.mapper" targetProject="src/main/java">-->
<!--            <property name="enableSubPackages" value="true"/>-->
<!--        </javaClientGenerator>-->

<!--        &lt;!&ndash;生成对应表及类名-->
<!--        去掉Mybatis Generator生成的一堆 example-->
<!--        &ndash;&gt;-->
<!--        <table tableName="user_login_table" domainObjectName="UserLoginTable">-->
<!--        </table>-->
<!--    </context>-->
<!--</generatorConfiguration>-->
<!--数据源2-->
<generatorConfiguration>
<!--加载配置文件，为下面读取数据库信息准备-->
<properties resource="application.properties"/>

<context id="Mysql" targetRuntime="MyBatis3Simple" defaultModelType="flat">

    <plugin type="tk.mybatis.mapper.generator.MapperPlugin">
        <!--其中tk.mybatis.mapper.generator.MapperPlugin很重要，用来指定通用Mapper对应的文件，这样我们生成的mapper都会继承这个通用Mapper-->
        <property name="mappers" value="com.zcph.oaonline.util.MyMapper" />
        <!--caseSensitive默认false，当数据库表名区分大小写时，可以将该属性设置为true-->
        <property name="caseSensitive" value="false"/>
    </plugin>


    <!--数据库链接地址账号密码，这里由于我使用的是根据开发和生产分离的配置文件，所以这里直接写上了-->
    <jdbcConnection driverClass="com.mysql.jdbc.Driver"
                    connectionURL="jdbc:mysql://192.168.128.61:3306/bgc?useUnicode=true&amp;characterEncoding=utf-8&amp;useSSL=false"
                    userId="root"
                    password="root">
    </jdbcConnection>

    <javaTypeResolver>
        <property name="forceBigDecimals" value="false"/>
    </javaTypeResolver>

    <!--生成Model类存放位置-->
    <javaModelGenerator targetPackage="com.zcph.oaonline.entity" targetProject="src/main/java">
        <property name="enableSubPackages" value="true"/>
        <property name="trimStrings" value="true"/>
    </javaModelGenerator>

    <!--生成映射文件存放位置-->
    <sqlMapGenerator targetPackage="mapper2" targetProject="src/main/resources">
        <property name="enableSubPackages" value="true"/>
    </sqlMapGenerator>

    <!--生成Dao类存放位置-->
    <!-- 客户端代码，生成易于使用的针对Model对象和XML配置文件 的代码
            type="ANNOTATEDMAPPER",生成Java Model 和基于注解的Mapper对象
            type="XMLMAPPER",生成SQLMap XML文件和独立的Mapper接口
    -->
    <javaClientGenerator type="XMLMAPPER" targetPackage="com.zcph.oaonline.mapper2" targetProject="src/main/java">
        <property name="enableSubPackages" value="true"/>
    </javaClientGenerator>

    <!--生成对应表及类名
    去掉Mybatis Generator生成的一堆 example
    -->
    <table tableName="news" domainObjectName="News">
    </table>
</context>
</generatorConfiguration>

因为我们已经在pom.xml中增加了mybatis-generator的plugin，利用idea的maven命令执行就可以生成对应的文件了。

执行后多出如下文件

因为我这个项目是后续要继续使用的，所以数据库内字段比较多，大家要是做测试的话可以把数据库内多余的字段删一删。

pagehelper的重写

因为我们使用了使用了layui，layui动态表格里需要一个code字段来确认数据。于是我们重写下PageInfo类。如下PageResult.java

package com.zcph.oaonline.model;

import com.github.pagehelper.PageInfo;

import java.util.List;

public class PageRusult<T> extends PageInfo<T> {
    public PageRusult() {
    }

    public PageRusult(List<T> list) {
        super(list, 8);
    }

    private Integer code;//layui框架列表模块返回参数中必须包含code状态字段

    public Integer getCode() {
        return code;
    }

    public void setCode(Integer code) {
        this.code = code;
    }

}

通用service

我们使用了通用mapper，于是我们可以新建一个通用service来简化我们的代码量，只需要其他service继承这个通用sevice即可，这样就不用再其他service里去写基础操作了

Iservice.java

package com.zcph.oaonline.serviceAll;

import org.springframework.stereotype.Service;

import java.util.List;

/**
 * 通用接口
 */
@Service
public interface IService<T> {

    T selectByKey(Object key);

    int save(T entity);

    int saveNotNull(T entity);

    int delete(Object key);

    int deleteByExample(Object example);

    int updateAll(T entity);

    int updateNotNull(T entity);

    List<T> selectByExample(Object example);

    List<T> selectAll();

    int selectCountByExample(Object example);

}

BaseService.java

package com.zcph.oaonline.serviceAll.impl;

import com.zcph.oaonline.serviceAll.IService;
import org.springframework.beans.factory.annotation.Autowired;
import tk.mybatis.mapper.common.Mapper;

import java.util.List;

/**
 * 通用Service
 * @param <T>
 */
public abstract class BaseService<T> implements IService<T> {

    @Autowired
    protected Mapper<T> mapper;
    public Mapper<T> getMapper() {
        return mapper;
    }

    @Override
    public T selectByKey(Object key) {
        //说明：根据主键字段进行查询，方法参数必须包含完整的主键属性，查询条件使用等号
        return mapper.selectByPrimaryKey(key);
    }

    @Override
    public int save(T entity) {
        //说明：保存一个实体，null的属性也会保存，不会使用数据库默认值
        return mapper.insert(entity);
    }

    @Override
    public int saveNotNull(T entity) {
        //说明：保存一个实体，属性不为null的值
        return mapper.insertSelective(entity);
    }

    @Override
    public int delete(Object key) {
        //说明：根据主键字段进行删除，方法参数必须包含完整的主键属性
        return mapper.deleteByPrimaryKey(key);
    }

    @Override
    public int updateAll(T entity) {
        //说明：根据主键更新实体全部字段，null值会被更新
        return mapper.updateByPrimaryKey(entity);
    }

    @Override
    public int updateNotNull(T entity) {
        //根据主键更新属性不为null的值
        return mapper.updateByPrimaryKeySelective(entity);
    }

    @Override
    public List<T> selectByExample(Object example) {
        //说明：根据Example条件进行查询
        //重点：这个查询支持通过Example类指定查询列，通过selectProperties方法指定查询列
        return mapper.selectByExample(example);
    }

    @Override
    public List<T> selectAll() {
        return mapper.selectAll();
    }

    @Override
    public int deleteByExample(Object example) {
        //说明：根据主键字段进行删除，方法参数必须包含完整的主键属性
        return mapper.deleteByExample(example);
    }
    @Override
    public int selectCountByExample(Object example) {
        return mapper.selectCountByExample(example);
    }
}

数据源1的业务层

使UserLoginService继承通用接口，并制定泛型为UserLoginTable即可

UserLoginService.java

package com.zcph.oaonline.service;

import com.zcph.oaonline.entity.UserLoginTable;
import com.zcph.oaonline.serviceAll.IService;
import com.zcph.oaonline.util.Page;

import java.util.List;
import java.util.Map;

public interface UserLoginService extends IService<UserLoginTable> {
    /**
     * 根据传入分页参数查询
     * @param page
     * @return
     */
    public List<UserLoginTable> queryUserLoginList(Page<UserLoginTable> page);

    /**
     * 保存或更新
     * @param userLoginTable
     * @return
     */
    public Map<String,Object> saveOrUpdateUserLogin(UserLoginTable userLoginTable);
}

 

实现类

UserLoginServiceImpl.java

package com.zcph.oaonline.service.impl;

import com.github.pagehelper.PageHelper;
import com.zcph.oaonline.entity.UserLoginTable;
import com.zcph.oaonline.mapper.UserLoginTableMapper;
import com.zcph.oaonline.service.UserLoginService;
import com.zcph.oaonline.serviceAll.impl.BaseService;
import com.zcph.oaonline.util.Page;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import tk.mybatis.mapper.util.StringUtil;

import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.UUID;

@Service("userLoginService")
public class UserLoginServiceImpl extends BaseService<UserLoginTable> implements UserLoginService {
    @Autowired
    private UserLoginTableMapper userLoginTableMapper;

    @Override
    public List<UserLoginTable> queryUserLoginList(Page<UserLoginTable> page) {
        PageHelper.startPage(page.getPage(),page.getRows());
        return  selectAll();
    }

    @Override
    public Map<String, Object> saveOrUpdateUserLogin(UserLoginTable userLoginTable) {
        LinkedHashMap<String,Object> resultMap=new LinkedHashMap<String,Object>();
        if(userLoginTable!=null){
            if(StringUtil.isNotEmpty(userLoginTable.getLoginUid())){//编辑
                if(StringUtil.isNotEmpty(userLoginTable.getLoginName())){
                    updateNotNull(userLoginTable);
                    resultMap.put("state","success");
                    resultMap.put("message","修改用户登录信息表成功");
                    return resultMap;
                }else{
                    resultMap.put("state","fail");
                    resultMap.put("message","修改用户登录信息表失败，缺少字段");
                    return resultMap;
                }
            }else{//新建
                if(StringUtil.isNotEmpty(userLoginTable.getLoginName())){
                    userLoginTable.setLoginUid(UUID.randomUUID().toString().replaceAll("-",""));
                    saveNotNull(userLoginTable);
                    resultMap.put("state","success");
                    resultMap.put("message","新建用户登录信息表成功");
                    return resultMap;
                }else{
                    resultMap.put("state","fail");
                    resultMap.put("message","新建用户登录信息表失败，缺少字段");
                    return resultMap;
                }
            }
        }else{
            resultMap.put("state","fail");
            resultMap.put("message","失败");
            return resultMap;
        }

    }
}

 数据源2的业务层

原理同数据源1，就是为了方便放到了另一个包里

NewsService.java

package com.zcph.oaonline.service2;

import com.zcph.oaonline.entity.News;
import com.zcph.oaonline.serviceAll.IService;
import com.zcph.oaonline.util.Page;

import java.util.List;
import java.util.Map;

public interface NewsService extends IService<News> {
    /**
     * 根据传入分页参数查询
     * @param page
     * @return
     */
    public List<News> queryNewsList(Page<News> page);
    /**
     * 保存或更新
     * @param news
     * @return
     */
    public Map<String,Object> saveOrUpdateNews(News news);
}

实现类

NewsServiceImpl.java

package com.zcph.oaonline.service2.impl;

import com.github.pagehelper.PageHelper;
import com.zcph.oaonline.entity.News;
import com.zcph.oaonline.mapper2.NewsMapper;
import com.zcph.oaonline.service2.NewsService;
import com.zcph.oaonline.serviceAll.impl.BaseService;
import com.zcph.oaonline.util.Page;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import tk.mybatis.mapper.util.StringUtil;

import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.UUID;

@Service("newsService")
public class NewsServiceImpl extends BaseService<News> implements NewsService {
    @Autowired
    private NewsMapper newsMapper;
    @Override
    public List<News> queryNewsList(Page<News> page) {
        PageHelper.startPage(page.getPage(),page.getRows());
        return  selectAll();
    }

    @Override
    public Map<String, Object> saveOrUpdateNews(News news) {
        LinkedHashMap<String,Object> resultMap=new LinkedHashMap<String,Object>();
        if(news!=null){
            if(StringUtil.isNotEmpty(news.getNewsId())){//编辑
                if(StringUtil.isNotEmpty(news.getNewsTitle())){
                    updateNotNull(news);
                    resultMap.put("state","success");
                    resultMap.put("message","修改新闻表成功");
                    return resultMap;
                }else{
                    resultMap.put("state","fail");
                    resultMap.put("message","修改新闻表失败，缺少字段");
                    return resultMap;
                }
            }else{//新建
                if(StringUtil.isNotEmpty(news.getNewsTitle())){
                    news.setNewsId(UUID.randomUUID().toString().replaceAll("-",""));
                    saveNotNull(news);
                    resultMap.put("state","success");
                    resultMap.put("message","新建新闻表成功");
                    return resultMap;
                }else{
                    resultMap.put("state","fail");
                    resultMap.put("message","新建新闻表失败，缺少字段");
                    return resultMap;
                }
            }
        }else{
            resultMap.put("state","fail");
            resultMap.put("message","失败");
            return resultMap;
        }

    }
}

事务测试业务层

向两个表内同时插入数据

JtaTestService.java

package com.zcph.oaonline.serviceAll;

import java.util.Map;

public interface JtaTestService {
    /**
     * 向两个表内同时插入数据
     * @return
     */
    public Map<String,Object> insertToTwoDatebaseService();
}

实现类

JtaTestServiceImpl.java

package com.zcph.oaonline.serviceAll.impl;

import com.zcph.oaonline.entity.News;
import com.zcph.oaonline.entity.UserLoginTable;
import com.zcph.oaonline.service.UserLoginService;
import com.zcph.oaonline.service2.NewsService;
import com.zcph.oaonline.serviceAll.JtaTestService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Propagation;
import org.springframework.transaction.annotation.Transactional;

import java.util.LinkedHashMap;
import java.util.Map;

@Service("jtaTestService")
public class JtaTestServiceImpl implements JtaTestService {
    @Autowired
    @Qualifier("userLoginService")
    private UserLoginService userLoginService;

    @Autowired
    @Qualifier("newsService")
    private NewsService newsService;

    @Override
    @Transactional(transactionManager = "xatx", propagation = Propagation.REQUIRED, rollbackFor = { java.lang.RuntimeException.class })
    public Map<String, Object> insertToTwoDatebaseService() {
        LinkedHashMap<String,Object> resultMap=new LinkedHashMap<String,Object>();
        UserLoginTable userLoginTable=new UserLoginTable();
        userLoginTable.setLoginName("8888");
        userLoginService.saveOrUpdateUserLogin(userLoginTable);

        News news=new News();
        news.setNewsTitle("8888");
        newsService.saveOrUpdateNews(news);
        //测试事务中断
        System.out.println(1/0);

        resultMap.put("state","success");
        resultMap.put("message","分布式事务同步成功");
        return resultMap;
    }
}

Web层

为了方便都放到了一个测试的controller里了

JtaTestController.java

package com.zcph.oaonline.web;

import com.zcph.oaonline.entity.News;
import com.zcph.oaonline.entity.UserLoginTable;
import com.zcph.oaonline.model.PageRusult;
import com.zcph.oaonline.service.UserLoginService;
import com.zcph.oaonline.service2.NewsService;
import com.zcph.oaonline.serviceAll.JtaTestService;
import com.zcph.oaonline.util.Page;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import tk.mybatis.mapper.util.StringUtil;

import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;

@Controller
@RequestMapping("/jtaTest")
public class JtaTestController {
    @Autowired
    @Qualifier("userLoginService")
    private UserLoginService userLoginService;

    @Autowired
    @Qualifier("newsService")
    private NewsService newsService;

    @Autowired
    @Qualifier("jtaTestService")
    private JtaTestService jtaTestService;
    @ResponseBody
    @RequestMapping("/queryUserLogin")
    public PageRusult selectUserLoginByPages(Page<UserLoginTable> page){
        List<UserLoginTable> userLoginTableList=userLoginService.queryUserLoginList(page);
        PageRusult<UserLoginTable> pageRusult =new PageRusult<UserLoginTable>(userLoginTableList);
        pageRusult.setCode(0);
        return pageRusult;
    }

    @ResponseBody
    @RequestMapping("/saveOrUpdateUserLogin")
    public Map<String,Object> saveOrUpdateUserLogin(UserLoginTable userLoginTable){
        LinkedHashMap<String,Object> resultMap=new LinkedHashMap<String,Object>();
        try {
            return userLoginService.saveOrUpdateUserLogin(userLoginTable);
        }catch (Exception e){
            resultMap.put("state","fail");
            resultMap.put("message","操作失败");
            return resultMap;
        }
    }

    @ResponseBody
    @RequestMapping("/deleteUserLogin")
    public Map<String,Object> deleteUserLogin(String loginUid){
        LinkedHashMap<String,Object> resultMap=new LinkedHashMap<String,Object>();
        try {
            if(StringUtil.isNotEmpty(loginUid)){
                userLoginService.delete(loginUid);
                resultMap.put("state","success");
                resultMap.put("message","删除用户登录信息表成功");
                return resultMap;
            }else{
                resultMap.put("state","fail");
                resultMap.put("message","删除用户登录信息表失败");
                return resultMap;
            }
        }catch (Exception e){
            resultMap.put("state","fail");
            resultMap.put("message","操作异常，删除用户登录信息表失败");
            return resultMap;
        }
    }

    @ResponseBody
    @RequestMapping("/selectNewsByPages")
    public PageRusult selectNewsByPages(Page<News> page){
        List<News> newsList=newsService.queryNewsList(page);
        PageRusult<News> pageRusult =new PageRusult<News>(newsList);
        pageRusult.setCode(0);
        return pageRusult;
    }

    @ResponseBody
    @RequestMapping("/saveOrUpdateNews")
    public Map<String,Object> saveOrUpdateNews(News news){
        LinkedHashMap<String,Object> resultMap=new LinkedHashMap<String,Object>();
        try {
            return newsService.saveOrUpdateNews(news);
        }catch (Exception e){
            resultMap.put("state","fail");
            resultMap.put("message","操作失败");
            return resultMap;
        }
    }

    @ResponseBody
    @RequestMapping("/deleteNews")
    public Map<String,Object> deleteNews(String newsId){
        LinkedHashMap<String,Object> resultMap=new LinkedHashMap<String,Object>();
        try {
            if(StringUtil.isNotEmpty(newsId)){
                newsService.delete(newsId);
                resultMap.put("state","success");
                resultMap.put("message","删除新闻表成功");
                return resultMap;
            }else{
                resultMap.put("state","fail");
                resultMap.put("message","删除新闻表失败");
                return resultMap;
            }
        }catch (Exception e){
            resultMap.put("state","fail");
            resultMap.put("message","操作异常，删除新闻表失败");
            return resultMap;
        }
    }

    @ResponseBody
    @RequestMapping("/insertToTwoDatebase")
    public Map<String,Object> insertToTwoDatebase(){
        LinkedHashMap<String,Object> resultMap=new LinkedHashMap<String,Object>();
        try {
            return jtaTestService.insertToTwoDatebaseService();
        }catch (Exception e){
            e.printStackTrace();
            resultMap.put("state","fail");
            resultMap.put("message","分布式事务同步失败");
            return resultMap;
        }
    }
}

测试页面test.ftl

<@com.head title="">
    <base id="base" href="${basePath!}">
    <link href="${basePath!}/static/plugins/layui/css/layui.css" type="text/css" media="screen" rel="stylesheet"/>
    <script src="${basePath!}/static/plugins/layui/layui.js" type="text/javascript"></script>

    <script>
        //一般直接写在一个js文件中
        layui.use(['layer', 'form', 'table'], function () {
            var layer = layui.layer
                , form = layui.form
                , $ = layui.$
                , laytpl = layui.laytpl
                , table = layui.table;
            // 第一个数据库
            var tableUserLogin = table.render({
                id: 'userLoginTableId'
                , elem: '#UserLoginTable'
                , height: 460
                , width: 755
                , url: '${basePath!}/jtaTest/queryUserLogin' //数据接口
                , page: true //开启分页
                , cols: [[ //表头
                    {type: 'numbers', title: '序号', width: 80}
                    , {field: 'loginUid', title: '主键', width: 300}
                    , {field: 'loginName', title: '登录名', width: 200}
                    , {width: 170, title: '操作', align: 'center', toolbar: '#barDemo'} //这里的toolbar值是模板元素的选择器
                ]],
                method: 'post',
                request: {
                    pageName: 'page' //页码的参数名称，默认：page
                    , limitName: 'rows' //每页数据量的参数名，默认：limit
                },
                response: {
                    statusName: 'code'
                    , statusCode: 0
                    , countName: 'total' //数据总数的字段名称，默认：count
                    , dataName: 'list' //数据列表的字段名称，默认：data
                },
            });

            var UserLoginInsertLayerIndex;

            //新建
            $("#UserLoginInsert").click(function () {
                //置空表单
                $("#UserLoginInsertForm").find(":input[name='loginName']").val("");
                $("#UserLoginInsertForm").find(":input[name='loginUid']").val("");
                UserLoginInsertLayerIndex = layer.open({
                    title: "新建",
                    type: 1,
                    content: $('#UserLoginInsertDiv')
                });
            });

            form.on('submit(UserLoginInsertFormSubmit)', function (data) {
                $.ajax({
                    type: "POST",
                    url: "${basePath!}/jtaTest/saveOrUpdateUserLogin",
                    data: $("#UserLoginInsertForm").serialize(),
                    async: false,
                    error: function (request) {
                        layer.alert("与服务器连接失败/(ㄒoㄒ)/~~");
                        return false;
                    },
                    success: function (data) {
                        if (data.state == 'fail') {
                            layer.alert(data.message);
                            layer.close(UserLoginInsertLayerIndex);
                            return false;
                        } else if (data.state == 'success') {
                            layer.alert(data.message);
                            layer.close(UserLoginInsertLayerIndex);
                            tableUserLogin.reload({
                                page: {
                                    curr: 1 //重新从第 1 页开始
                                }
                            });
                        }
                    }
                });
                return false; //这个阻止表单跳转。如果需要表单跳转， 去掉这段即可。
            });

            //监听工具条
            table.on('tool(UserLoginTable)', function (obj) { //注：tool是工具条事件名，UserLogin是table原始容器的属性 lay-filter="对应的值"
                var data = obj.data; //获得当前行数据
                var layEvent = obj.event; //获得 lay-event 对应的值（也可以是表头的 event 参数对应的值）
                if (layEvent === 'del') { //删除
                    layer.confirm('真的删除该行数据吗', function (index) {
                        obj.del(); //删除对应行（tr）的DOM结构，并更新缓存
                        layer.close(index);
                        //向服务端发送删除指令
                        $.ajax({
                            type: "POST",
                            url: "${basePath!}/jtaTest/deleteUserLogin",
                            data: {loginUid: data.loginUid},
                            async: false,
                            error: function (request) {
                                layer.alert("与服务器连接失败/(ㄒoㄒ)/~~");
                                return false;
                            },
                            success: function (data) {
                                if (data.state == 'fail') {
                                    layer.alert(data.message);
                                    return false;
                                } else if (data.state == 'success') {
                                }
                            }
                        });
                    });
                } else if (layEvent === 'edit') { //编辑
                    //置空表单
                    $("#UserLoginInsertForm").find(":input[name='loginName']").val("");
                    $("#UserLoginInsertForm").find(":input[name='loginUid']").val("");
                    //添加值
                    $("#UserLoginInsertForm").find(":input[name='loginName']").val(data.loginName);
                    $("#UserLoginInsertForm").find(":input[name='loginUid']").val(data.loginUid);
                    UserLoginInsertLayerIndex = layer.open({
                        title: "编辑",
                        type: 1,
                        content: $('#UserLoginInsertDiv')
                    });
                }
            });
            // 第二个数据库
            var tableNews = table.render({
                id: 'newsTableId'
                , elem: '#News'
                , height: 460
                , width: 755
                , url: '${basePath!}/jtaTest/selectNewsByPages' //数据接口
                , page: true //开启分页
                , cols: [[ //表头
                    {type: 'numbers', title: '序号', width: 80, sort: true}
                    , {field: 'newsId', title: '主键', width: 300, unresize: true}
                    , {field: 'newsTitle', title: '新闻标题', width: 200, unresize: true}
                    , {width: 170, title: '操作', align: 'center', toolbar: '#barDemo'} //这里的toolbar值是模板元素的选择器
                ]],
                method: 'post',
                request: {
                    pageName: 'page' //页码的参数名称，默认：page
                    , limitName: 'rows' //每页数据量的参数名，默认：limit
                },
                response: {
                    statusName: 'code'
                    , statusCode: 0
                    , countName: 'total' //数据总数的字段名称，默认：count
                    , dataName: 'list' //数据列表的字段名称，默认：data
                },
            });

            var NewsInsertLayerIndex;

            //新建
            $("#NewsInsert").click(function () {
                //置空表单
                $("#NewsInsertForm").find(":input[name='newsTitle']").val("");
                $("#NewsInsertForm").find(":input[name='newsId']").val("");
                NewsInsertLayerIndex = layer.open({
                    title: "新建",
                    type: 1,
                    content: $('#NewsInsertDiv')
                });
            });

            form.on('submit(NewsInsertFormSubmit)', function (data) {
                $.ajax({
                    type: "POST",
                    url: "${basePath!}/jtaTest/saveOrUpdateNews",
                    data: $("#NewsInsertForm").serialize(),
                    async: false,
                    error: function (request) {
                        layer.alert("与服务器连接失败/(ㄒoㄒ)/~~");
                        return false;
                    },
                    success: function (data) {
                        if (data.state == 'fail') {
                            layer.alert(data.message);
                            layer.close(NewsInsertLayerIndex);
                            return false;
                        } else if (data.state == 'success') {
                            layer.alert(data.message);
                            layer.close(NewsInsertLayerIndex);
                            tableNews.reload({
                                page: {
                                    curr: 1 //重新从第 1 页开始
                                }
                            });
                        }
                    }
                });

                return false; //这个阻止表单跳转。如果需要表单跳转， 去掉这段即可。
            });

            //监听工具条
            table.on('tool(News)', function (obj) { //注：tool是工具条事件名，UserLogin是table原始容器的属性 lay-filter="对应的值"
                var data = obj.data; //获得当前行数据
                var layEvent = obj.event; //获得 lay-event 对应的值（也可以是表头的 event 参数对应的值）
                var tr = obj.tr; //获得当前行 tr 的DOM对象

                if (layEvent === 'detail') { //查看
                    //do somehing
                } else if (layEvent === 'del') { //删除
                    layer.confirm('真的删除该行数据吗', function (index) {
                        obj.del(); //删除对应行（tr）的DOM结构，并更新缓存
                        layer.close(index);
                        //向服务端发送删除指令
                        $.ajax({
                            type: "POST",
                            url: "${basePath!}/jtaTest/deleteNews",
                            data: {newsId: data.newsId},
                            async: false,
                            error: function (request) {
                                layer.alert("与服务器连接失败/(ㄒoㄒ)/~~");
                                return false;
                            },
                            success: function (data) {
                                if (data.state == 'fail') {
                                    layer.alert(data.message);
                                    return false;
                                } else if (data.state == 'success') {
                                }
                            }
                        });
                    });
                } else if (layEvent === 'edit') { //编辑
                    //do something
                    //置空表单
                    $("#NewsInsertForm").find(":input[name='newsTitle']").val("");
                    $("#NewsInsertForm").find(":input[name='newsId']").val("");
                    //添加值
                    $("#NewsInsertForm").find(":input[name='newsTitle']").val(data.newsTitle);
                    $("#NewsInsertForm").find(":input[name='newsId']").val(data.newsId);
                    NewsInsertLayerIndex = layer.open({
                        title: "编辑",
                        type: 1,
                        content: $('#NewsInsertDiv')
                    });
                }
            });

            //分布式事务测试
            $("#JTATest").click(function () {
                $.ajax({
                    type: "POST",
                    url: "${basePath!}/jtaTest/insertToTwoDatebase",
                    data: {},
                    async: false,
                    error: function (request) {
                        layer.alert("与服务器连接失败/(ㄒoㄒ)/~~");
                        return false;
                    },
                    success: function (data) {
                        if (data.state == 'fail') {
                            layer.alert(data.message);
                            return false;
                        } else if (data.state == 'success') {
                            layer.alert(data.message);
                        }
                    }
                });
            });


        });
    </script>
</@com.head>
<@com.body>
<#--第一个数据库表-->
    <fieldset class="layui-elem-field">
        <legend>用户登录信息</legend>
        <div class="layui-field-box">
            <div class="layui-fluid">
                <div class="layui-row">
                    <button class="layui-btn" id="UserLoginInsert">新建</button>
                </div>
                <div class="layui-row">
                    <table id="UserLoginTable" lay-filter="UserLoginTable"></table>
                </div>
            </div>
        </div>
    </fieldset>
    <div id="UserLoginInsertDiv" style="display: none">
        <form class="layui-form" action="" id="UserLoginInsertForm">
            <input type="hidden" id="UserLoginInsertFormId" name="loginUid"/>
            <div class="layui-form-item">
                <label class="layui-form-label">登录名</label>
                <div class="layui-input-block">
                    <input type="text" name="loginName" required lay-verify="required" placeholder="请输登陆名称"
                           autocomplete="off" class="layui-input">
                </div>
            </div>
            <div class="layui-form-item">
                <div class="layui-input-block">
                    <button class="layui-btn" lay-submit lay-filter="UserLoginInsertFormSubmit">立即提交</button>
                    <button type="reset" class="layui-btn layui-btn-primary" id="UserLoginInsertFormReset">重置</button>
                </div>
            </div>
        </form>
    </div>
<#--    第二个数据库表-->
    <fieldset class="layui-elem-field">
        <legend>新闻信息</legend>
        <div class="layui-field-box">
            <div class="layui-fluid">
                <div class="layui-row">
                    <button class="layui-btn" id="NewsInsert">新建</button>
                </div>
                <div class="layui-row">
                    <table id="News" lay-filter="News"></table>
                </div>
            </div>
        </div>
    </fieldset>
    <div id="NewsInsertDiv" style="display: none">
        <form class="layui-form" action="" id="NewsInsertForm">
            <input type="hidden" id="NewsInsertFormId" name="newsId"/>
            <div class="layui-form-item">
                <label class="layui-form-label">新闻标题</label>
                <div class="layui-input-block">
                    <input type="text" name="newsTitle" required lay-verify="required" placeholder="请输新闻标题"
                           autocomplete="off" class="layui-input">
                </div>
            </div>
            <div class="layui-form-item">
                <div class="layui-input-block">
                    <button class="layui-btn" lay-submit lay-filter="NewsInsertFormSubmit">立即提交</button>
                    <button type="reset" class="layui-btn layui-btn-primary" id="NewsInsertFormReset">重置</button>
                </div>
            </div>
        </form>
    </div>

<#------------------------------------>
    <fieldset class="layui-elem-field">
        <legend>分布式事务测试</legend>
        <div class="layui-field-box">
            <div class="layui-fluid">
                <div class="layui-row">
                    <button class="layui-btn" id="JTATest">同时向两个表内插入信息为8888的数据</button>
                </div>
            </div>
        </div>
    </fieldset>
    <script type="text/html" id="barDemo">
        <#--<a class="layui-btn layui-btn-xs" lay-event="detail">查看</a>-->
        <a class="layui-btn layui-btn-xs" lay-event="edit">编辑</a>
        <a class="layui-btn layui-btn-danger layui-btn-xs" lay-event="del">删除</a>
    </script>
    <!-- 序号监听事件 -->
    <script type="text/html" id="indexTpl">
        {{d.LAY_TABLE_INDEX+1}}
    </script>
</@com.body>

 

代码至此结束，关于项目的其他文件，可以到文末处我的git上去看。这里就不再书写了。

---

 

测试

1.测试分页查询

启动项目，成功后输入地址 http://localhost:9090/oa_online/toTest，返回页面如下图

可以看到后台打印出来了sql同时有warn提示。这个提示的意思就是事务还没有运行，原因是我们还没有执行过使用事务部分的代码（同时向两个表内插入信息为8888的数据）。

2019-08-22 17:00:51.918  INFO 10740 --- [nio-9090-exec-1] o.a.c.c.C.[.[localhost].[/oa_online]     : Initializing Spring DispatcherServlet 'dispatcherServlet'
2019-08-22 17:00:51.919  INFO 10740 --- [nio-9090-exec-1] o.s.web.servlet.DispatcherServlet        : Initializing Servlet 'dispatcherServlet'
2019-08-22 17:00:51.926  INFO 10740 --- [nio-9090-exec-1] o.s.web.servlet.DispatcherServlet        : Completed initialization in 7 ms
2019-08-22 17:00:52.653  WARN 10740 --- [nio-9090-exec-2] c.atomikos.jdbc.AtomikosConnectionProxy  : atomikos connection proxy for com.alibaba.druid.proxy.jdbc.ConnectionProxyImpl@1c486d48: WARNING: transaction manager not running?
2019-08-22 17:00:52.653  WARN 10740 --- [nio-9090-exec-3] c.atomikos.jdbc.AtomikosConnectionProxy  : atomikos connection proxy for com.alibaba.druid.proxy.jdbc.ConnectionProxyImpl@73539df1: WARNING: transaction manager not running?
2019-08-22 17:00:52.657 DEBUG 10740 --- [nio-9090-exec-3] c.z.o.m.NewsMapper.selectAll_COUNT       : ==>  Preparing: SELECT count(0) FROM news 
2019-08-22 17:00:52.657  WARN 10740 --- [nio-9090-exec-3] c.atomikos.jdbc.AtomikosConnectionProxy  : atomikos connection proxy for com.alibaba.druid.proxy.jdbc.ConnectionProxyImpl@73539df1: WARNING: transaction manager not running?
2019-08-22 17:00:52.657 DEBUG 10740 --- [nio-9090-exec-2] c.z.o.m.U.selectAll_COUNT                : ==>  Preparing: SELECT count(0) FROM user_login_table 
2019-08-22 17:00:52.658  WARN 10740 --- [nio-9090-exec-3] c.atomikos.jdbc.AtomikosConnectionProxy  : atomikos connection proxy for com.alibaba.druid.proxy.jdbc.ConnectionProxyImpl@73539df1: WARNING: transaction manager not running?
2019-08-22 17:00:52.658  WARN 10740 --- [nio-9090-exec-2] c.atomikos.jdbc.AtomikosConnectionProxy  : atomikos connection proxy for com.alibaba.druid.proxy.jdbc.ConnectionProxyImpl@1c486d48: WARNING: transaction manager not running?
2019-08-22 17:00:52.658  WARN 10740 --- [nio-9090-exec-2] c.atomikos.jdbc.AtomikosConnectionProxy  : atomikos connection proxy for com.alibaba.druid.proxy.jdbc.ConnectionProxyImpl@1c486d48: WARNING: transaction manager not running?
2019-08-22 17:00:52.766 DEBUG 10740 --- [nio-9090-exec-2] c.z.o.m.U.selectAll_COUNT                : ==> Parameters: 
2019-08-22 17:00:52.766 DEBUG 10740 --- [nio-9090-exec-3] c.z.o.m.NewsMapper.selectAll_COUNT       : ==> Parameters: 
2019-08-22 17:00:52.783 DEBUG 10740 --- [nio-9090-exec-3] c.z.o.m.NewsMapper.selectAll_COUNT       : <==      Total: 1
2019-08-22 17:00:52.783 DEBUG 10740 --- [nio-9090-exec-2] c.z.o.m.U.selectAll_COUNT                : <==      Total: 1
2019-08-22 17:00:52.788 DEBUG 10740 --- [nio-9090-exec-2] c.z.o.m.UserLoginTableMapper.selectAll   : ==>  Preparing: SELECT login_uid,login_name,login_password,remarks,status,update_date,create_date FROM user_login_table LIMIT ? 
2019-08-22 17:00:52.788  WARN 10740 --- [nio-9090-exec-2] c.atomikos.jdbc.AtomikosConnectionProxy  : atomikos connection proxy for com.alibaba.druid.proxy.jdbc.ConnectionProxyImpl@1c486d48: WARNING: transaction manager not running?
2019-08-22 17:00:52.788  WARN 10740 --- [nio-9090-exec-2] c.atomikos.jdbc.AtomikosConnectionProxy  : atomikos connection proxy for com.alibaba.druid.proxy.jdbc.ConnectionProxyImpl@1c486d48: WARNING: transaction manager not running?
2019-08-22 17:00:52.789 DEBUG 10740 --- [nio-9090-exec-3] c.z.o.mapper2.NewsMapper.selectAll       : ==>  Preparing: SELECT news_id,news_type,news_title,news_introduction,news_cover,news_content,news_date,news_read_times,news_create,news_update,news_show_status,news_status,news_spare_varchar,news_spare_date,news_spare_int FROM news LIMIT ? 
2019-08-22 17:00:52.790  WARN 10740 --- [nio-9090-exec-3] c.atomikos.jdbc.AtomikosConnectionProxy  : atomikos connection proxy for com.alibaba.druid.proxy.jdbc.ConnectionProxyImpl@73539df1: WARNING: transaction manager not running?
2019-08-22 17:00:52.790  WARN 10740 --- [nio-9090-exec-3] c.atomikos.jdbc.AtomikosConnectionProxy  : atomikos connection proxy for com.alibaba.druid.proxy.jdbc.ConnectionProxyImpl@73539df1: WARNING: transaction manager not running?
2019-08-22 17:00:52.792 DEBUG 10740 --- [nio-9090-exec-2] c.z.o.m.UserLoginTableMapper.selectAll   : ==> Parameters: 10(Integer)
2019-08-22 17:00:52.793 DEBUG 10740 --- [nio-9090-exec-3] c.z.o.mapper2.NewsMapper.selectAll       : ==> Parameters: 10(Integer)
2019-08-22 17:00:52.800 DEBUG 10740 --- [nio-9090-exec-2] c.z.o.m.UserLoginTableMapper.selectAll   : <==      Total: 10
2019-08-22 17:00:52.801  WARN 10740 --- [nio-9090-exec-2] c.atomikos.jdbc.AtomikosConnectionProxy  : atomikos connection proxy for com.alibaba.druid.proxy.jdbc.ConnectionProxyImpl@1c486d48: WARNING: transaction manager not running?
2019-08-22 17:00:52.804 DEBUG 10740 --- [nio-9090-exec-3] c.z.o.mapper2.NewsMapper.selectAll       : <==      Total: 10
2019-08-22 17:00:52.804  WARN 10740 --- [nio-9090-exec-3] c.atomikos.jdbc.AtomikosConnectionProxy  : atomikos connection proxy for com.alibaba.druid.proxy.jdbc.ConnectionProxyImpl@73539df1: WARNING: transaction manager not running?

当我们执行事务测试。点击（同时向两个表内插入信息为8888的数据）按钮时，打断点之后单步走可以看到执行了事务的回滚。到数据库内查看也没有新增对应的数据。

 

 执行后日志如下：

可以看出执行这段代码时是 现注册的事务，所以之前才会有事务并未运行的警告。

2019-08-22 17:04:29.050  INFO 10740 --- [nio-9090-exec-7] c.a.icatch.provider.imp.AssemblerImp     : Loaded jar:file:/D:/codesoft/maven/repository/com/atomikos/transactions/4.0.6/transactions-4.0.6.jar!/transactions-defaults.properties
2019-08-22 17:04:29.053  WARN 10740 --- [nio-9090-exec-7] c.a.icatch.provider.imp.AssemblerImp     : Thanks for using Atomikos! Evaluate http://www.atomikos.com/Main/ExtremeTransactions for advanced features and professional support
or register at http://www.atomikos.com/Main/RegisterYourDownload to disable this message and receive FREE tips & advice
Thanks for using Atomikos! Evaluate http://www.atomikos.com/Main/ExtremeTransactions for advanced features and professional support
or register at http://www.atomikos.com/Main/RegisterYourDownload to disable this message and receive FREE tips & advice
2019-08-22 17:04:29.062  INFO 10740 --- [nio-9090-exec-7] c.a.icatch.provider.imp.AssemblerImp     : USING: com.atomikos.icatch.default_max_wait_time_on_shutdown = 9223372036854775807
2019-08-22 17:04:29.062  INFO 10740 --- [nio-9090-exec-7] c.a.icatch.provider.imp.AssemblerImp     : USING: com.atomikos.icatch.allow_subtransactions = true
2019-08-22 17:04:29.062  INFO 10740 --- [nio-9090-exec-7] c.a.icatch.provider.imp.AssemblerImp     : USING: com.atomikos.icatch.recovery_delay = 10000
2019-08-22 17:04:29.063  INFO 10740 --- [nio-9090-exec-7] c.a.icatch.provider.imp.AssemblerImp     : USING: com.atomikos.icatch.automatic_resource_registration = true
2019-08-22 17:04:29.063  INFO 10740 --- [nio-9090-exec-7] c.a.icatch.provider.imp.AssemblerImp     : USING: com.atomikos.icatch.oltp_max_retries = 5
2019-08-22 17:04:29.063  INFO 10740 --- [nio-9090-exec-7] c.a.icatch.provider.imp.AssemblerImp     : USING: com.atomikos.icatch.client_demarcation = false
2019-08-22 17:04:29.063  INFO 10740 --- [nio-9090-exec-7] c.a.icatch.provider.imp.AssemblerImp     : USING: com.atomikos.icatch.threaded_2pc = false
2019-08-22 17:04:29.063  INFO 10740 --- [nio-9090-exec-7] c.a.icatch.provider.imp.AssemblerImp     : USING: com.atomikos.icatch.serial_jta_transactions = true
2019-08-22 17:04:29.063  INFO 10740 --- [nio-9090-exec-7] c.a.icatch.provider.imp.AssemblerImp     : USING: com.atomikos.icatch.log_base_dir = ./
2019-08-22 17:04:29.063  INFO 10740 --- [nio-9090-exec-7] c.a.icatch.provider.imp.AssemblerImp     : USING: com.atomikos.icatch.rmi_export_class = none
2019-08-22 17:04:29.063  INFO 10740 --- [nio-9090-exec-7] c.a.icatch.provider.imp.AssemblerImp     : USING: com.atomikos.icatch.max_actives = 50
2019-08-22 17:04:29.063  INFO 10740 --- [nio-9090-exec-7] c.a.icatch.provider.imp.AssemblerImp     : USING: com.atomikos.icatch.checkpoint_interval = 500
2019-08-22 17:04:29.063  INFO 10740 --- [nio-9090-exec-7] c.a.icatch.provider.imp.AssemblerImp     : USING: com.atomikos.icatch.enable_logging = true
2019-08-22 17:04:29.063  INFO 10740 --- [nio-9090-exec-7] c.a.icatch.provider.imp.AssemblerImp     : USING: com.atomikos.icatch.log_base_name = tmlog
2019-08-22 17:04:29.063  INFO 10740 --- [nio-9090-exec-7] c.a.icatch.provider.imp.AssemblerImp     : USING: com.atomikos.icatch.max_timeout = 300000
2019-08-22 17:04:29.063  INFO 10740 --- [nio-9090-exec-7] c.a.icatch.provider.imp.AssemblerImp     : USING: com.atomikos.icatch.trust_client_tm = false
2019-08-22 17:04:29.063  INFO 10740 --- [nio-9090-exec-7] c.a.icatch.provider.imp.AssemblerImp     : USING: java.naming.factory.initial = com.sun.jndi.rmi.registry.RegistryContextFactory
2019-08-22 17:04:29.063  INFO 10740 --- [nio-9090-exec-7] c.a.icatch.provider.imp.AssemblerImp     : USING: com.atomikos.icatch.tm_unique_name = 192.168.128.132.tm
2019-08-22 17:04:29.063  INFO 10740 --- [nio-9090-exec-7] c.a.icatch.provider.imp.AssemblerImp     : USING: com.atomikos.icatch.forget_orphaned_log_entries_delay = 86400000
2019-08-22 17:04:29.063  INFO 10740 --- [nio-9090-exec-7] c.a.icatch.provider.imp.AssemblerImp     : USING: com.atomikos.icatch.oltp_retry_interval = 10000
2019-08-22 17:04:29.063  INFO 10740 --- [nio-9090-exec-7] c.a.icatch.provider.imp.AssemblerImp     : USING: java.naming.provider.url = rmi://localhost:1099
2019-08-22 17:04:29.063  INFO 10740 --- [nio-9090-exec-7] c.a.icatch.provider.imp.AssemblerImp     : USING: com.atomikos.icatch.force_shutdown_on_vm_exit = false
2019-08-22 17:04:29.063  INFO 10740 --- [nio-9090-exec-7] c.a.icatch.provider.imp.AssemblerImp     : USING: com.atomikos.icatch.default_jta_timeout = 10000
2019-08-22 17:04:29.064  INFO 10740 --- [nio-9090-exec-7] c.a.icatch.provider.imp.AssemblerImp     : Using default (local) logging and recovery...
2019-08-22 17:04:29.221  INFO 10740 --- [nio-9090-exec-7] c.a.d.xa.XATransactionalResource         : businessDB: refreshed XAResource
2019-08-22 17:04:29.252  INFO 10740 --- [nio-9090-exec-7] c.a.d.xa.XATransactionalResource         : systemDB: refreshed XAResource
2019-08-22 17:04:29.342 DEBUG 10740 --- [nio-9090-exec-7] c.z.o.m.U.insertSelective                : ==>  Preparing: INSERT INTO user_login_table ( login_uid,login_name ) VALUES( ?,? ) 
2019-08-22 17:04:29.363 DEBUG 10740 --- [nio-9090-exec-7] c.z.o.m.U.insertSelective                : ==> Parameters: ef575e338ca14f42a1966348ade0df81(String), 8888(String)
2019-08-22 17:04:29.366 DEBUG 10740 --- [nio-9090-exec-7] c.z.o.m.U.insertSelective                : <==    Updates: 1
2019-08-22 17:04:29.372 DEBUG 10740 --- [nio-9090-exec-7] c.z.o.m.NewsMapper.insertSelective       : ==>  Preparing: INSERT INTO news ( news_id,news_title ) VALUES( ?,? ) 
2019-08-22 17:04:29.376 DEBUG 10740 --- [nio-9090-exec-7] c.z.o.m.NewsMapper.insertSelective       : ==> Parameters: 1ae4327ec2104da0aec8b8897baa9069(String), 8888(String)
2019-08-22 17:04:29.382 DEBUG 10740 --- [nio-9090-exec-7] c.z.o.m.NewsMapper.insertSelective       : <==    Updates: 1
java.lang.ArithmeticException: / by zero
    at com.zcph.oaonline.serviceAll.impl.JtaTestServiceImpl.insertToTwoDatebaseService(JtaTestServiceImpl.java:39)
    at com.zcph.oaonline.serviceAll.impl.JtaTestServiceImpl$$FastClassBySpringCGLIB$$d75a57c1.invoke(<generated>)
    at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218)
    at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:749)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
    at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:295)
    at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:98)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
    at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:688)
    at com.zcph.oaonline.serviceAll.impl.JtaTestServiceImpl$$EnhancerBySpringCGLIB$$38d77f20.insertToTwoDatebaseService(<generated>)
    at com.zcph.oaonline.web.JtaTestController.insertToTwoDatebase(JtaTestController.java:128)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:190)
    at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138)
    at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:892)
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:797)
    at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1039)
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:942)
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1005)
    at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:908)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:660)
    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:882)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at com.alibaba.druid.support.http.WebStatFilter.doFilter(WebStatFilter.java:123)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:118)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:490)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
    at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408)
    at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
    at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:853)
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1587)
    at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    at java.lang.Thread.run(Thread.java:748)

不信我们可以再次刷新下页面，日志展示如下，只有查询语句了，没有了事务没有运行的警告了。

2019-08-22 17:12:41.718 DEBUG 4428 --- [io-9090-exec-10] c.z.o.m.U.selectAll_COUNT                : ==>  Preparing: SELECT count(0) FROM user_login_table 
2019-08-22 17:12:41.718 DEBUG 4428 --- [io-9090-exec-10] c.z.o.m.U.selectAll_COUNT                : ==> Parameters: 
2019-08-22 17:12:41.719 DEBUG 4428 --- [io-9090-exec-10] c.z.o.m.U.selectAll_COUNT                : <==      Total: 1
2019-08-22 17:12:41.719 DEBUG 4428 --- [io-9090-exec-10] c.z.o.m.UserLoginTableMapper.selectAll   : ==>  Preparing: SELECT login_uid,login_name,login_password,remarks,status,update_date,create_date FROM user_login_table LIMIT ? 
2019-08-22 17:12:41.720 DEBUG 4428 --- [io-9090-exec-10] c.z.o.m.UserLoginTableMapper.selectAll   : ==> Parameters: 10(Integer)
2019-08-22 17:12:41.726 DEBUG 4428 --- [io-9090-exec-10] c.z.o.m.UserLoginTableMapper.selectAll   : <==      Total: 10
2019-08-22 17:12:41.747 DEBUG 4428 --- [nio-9090-exec-3] c.z.o.m.NewsMapper.selectAll_COUNT       : ==>  Preparing: SELECT count(0) FROM news 
2019-08-22 17:12:41.747 DEBUG 4428 --- [nio-9090-exec-3] c.z.o.m.NewsMapper.selectAll_COUNT       : ==> Parameters: 
2019-08-22 17:12:41.749 DEBUG 4428 --- [nio-9090-exec-3] c.z.o.m.NewsMapper.selectAll_COUNT       : <==      Total: 1
2019-08-22 17:12:41.750 DEBUG 4428 --- [nio-9090-exec-3] c.z.o.mapper2.NewsMapper.selectAll       : ==>  Preparing: SELECT news_id,news_type,news_title,news_introduction,news_cover,news_content,news_date,news_read_times,news_create,news_update,news_show_status,news_status,news_spare_varchar,news_spare_date,news_spare_int FROM news LIMIT ? 
2019-08-22 17:12:41.750 DEBUG 4428 --- [nio-9090-exec-3] c.z.o.mapper2.NewsMapper.selectAll       : ==> Parameters: 10(Integer)
2019-08-22 17:12:41.758 DEBUG 4428 --- [nio-9090-exec-3] c.z.o.mapper2.NewsMapper.selectAll       : <==      Total: 10

至于其他的测试，我们这里就不再赘述了。

---

 

疑问

1、我们出现了

atomikos connection proxy for com.alibaba.druid.proxy.jdbc.ConnectionProxyImpl@1c486d48: WARNING: transaction manager not running?

这个警告，怎么才能不出现呢。尝试了一些方法终究没能去掉。

2、在执行后前往druid监控查看时，发现并未记录回滚和提交的次数。这个着实不知道为何。

希望有大佬看后能给予解答，有问题也可以留言问我。我尽量解答。

代码地址：https://github.com/keepme19910311/SpringBootMultipleDatasource

下载后idea可直接打开。需要修改下数据源，请自行修改。