Spring boot對於我來說是一個剛接觸的新東西，學習過程中，發現這東西還是很容易上手的，Spring boot沒配置時會默認使用Spring data jpa，這東西可以說一個極簡潔的工具，可是我還是比較喜歡用mybatis,工具是沒有最好的，只有這合適自己的。
說到mybatis，最近有一個很好用的工具--------mybatis-Plus（官網）,現在更新的版本是2.1.2，這里使用的也是這個版本。我比較喜歡的功能是代碼生成器，條件構造器，這樣就可以更容易的去開發了。
mybatisPlus官網上是有Spring boot整個的例子的，我也跟着它走了一篇，結果，程序沒跑起來，后來才知道demo用的H2 database，和mysql根本不是同一樣東西，所以各位想要整合mybatisPlus，可以不看官網的，可以少走彎路。
下面就是整合的過程
1、首先要把需要的jar文件都弄過來，pom.xml需要的東西如下
pom.xml(不完整)
<!-- mybatis-plus begin -->
<dependency>
<groupId>com.baomidou</groupId>
<artifactId>mybatisplus-spring-boot-starter</artifactId>
<version>1.0.4</version>
</dependency>
<dependency>
<groupId>com.baomidou</groupId>
<artifactId>mybatis-plus</artifactId>
<version>2.1.2</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>
<!-- mybatis-plus end -->
<!-- druid阿里巴巴數據庫連接池 -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.1.3</version>
</dependency>
<!--mysql-->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>1.3.1</version>
</dependency>
2、添加mybatis相關的配置，如賬號、密碼等。這里我使用了application.yml來配。
application.yml
server: port: 8080spring
spring:
devtools:
restart:
enabled: true #這里是為了熱部署的，與mybatis是無關的DATABASE CONFIG
datasource:
driver-class-name: com.mysql.jdbc.Driver
username: root
password: root
url: jdbc:mysql://mysqldb:3306/tdx_shop?useUnicode=true&characterEncoding=utf-8
type: com.alibaba.druid.pool.DruidDataSource #這里是配置druid連接池，以下都是druid的配置信息
filters: stat,wall,log4j
maxActive: 20
initialSize: 1
maxWait: 60000
minIdle: 1
timeBetweenEvictionRunsMillis: 60000
minEvictableIdleTimeMillis: 300000
validationQuery: select 'x'
testWhileIdle: true
testOnBorrow: false
testOnReturn: false
poolPreparedStatements: true
maxOpenPreparedStatements: 20
connection-properties: druid.stat.merggSql=ture;druid.stat.slowSqlMillis=5000mybatis
mybatis:
mapper-locations: classpath:/mapper/**Mapper.xml #把xml文件放在com.XX.mapper.中可能會出現找到的問題，這里把他放在resource下的mapper中實體掃描，多個package用逗號或者分號分隔
typeAliasesPackage: com.tdx.account_service.entity #這里是實體類的位置
configuration:
map-underscore-to-camel-case: true
cache-enabled: falselogging
logging:
level: warn
配置的東西和我們以前用mybatis配置可以說差不多，但spring boot是沒有xml配置文件的。注意一下紅字的內容，基本沒問題了。
3、mybatis-Plus配置文件------MybatisPlusConfig，首先上圖說明一下文件路徑。其中MybatisPlusConfig是放在config文件夾內，而xml文件是放在resouces下mapper中。
接着就是MybatisPlusConfig內容部分了
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1
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MybatisProperties.java
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package com.tdx.account_service.config;import com.alibaba.druid.pool.DruidDataSource;
import com.alibaba.druid.support.http.StatViewServlet;
import com.alibaba.druid.support.http.WebStatFilter;
import com.baomidou.mybatisplus.MybatisConfiguration;
import com.baomidou.mybatisplus.MybatisXMLLanguageDriver;
import com.baomidou.mybatisplus.entity.GlobalConfiguration;
import com.baomidou.mybatisplus.enums.DBType;
import com.baomidou.mybatisplus.plugins.PaginationInterceptor;
import com.baomidou.mybatisplus.plugins.PerformanceInterceptor;
import com.baomidou.mybatisplus.plugins.parser.ISqlParser;
import com.baomidou.mybatisplus.plugins.parser.ISqlParserFilter;
import com.baomidou.mybatisplus.plugins.parser.tenant.TenantHandler;
import com.baomidou.mybatisplus.plugins.parser.tenant.TenantSqlParser;
import com.baomidou.mybatisplus.spring.MybatisSqlSessionFactoryBean;
import com.baomidou.mybatisplus.spring.boot.starter.SpringBootVFS;
import com.baomidou.mybatisplus.toolkit.PluginUtils;
import net.sf.jsqlparser.expression.Expression;
import net.sf.jsqlparser.expression.LongValue;
import org.apache.ibatis.mapping.DatabaseIdProvider;
import org.apache.ibatis.mapping.MappedStatement;
import org.apache.ibatis.plugin.Interceptor;
import org.apache.ibatis.reflection.MetaObject;
import org.mybatis.spring.annotation.MapperScan;
import org.mybatis.spring.boot.autoconfigure.MybatisProperties;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.bind.RelaxedPropertyResolver;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
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.core.env.Environment;
import org.springframework.core.io.DefaultResourceLoader;
import org.springframework.core.io.ResourceLoader;
import org.springframework.util.ObjectUtils;
import org.springframework.util.StringUtils;import javax.sql.DataSource;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;/**
code is far away from bug with the animal protecting
┏┓ ┏┓
┏┛┻━━━┛┻┓
┃ ┃
┃ ━ ┃
┃ ┳┛ ┗┳ ┃
┃ ┃
┃ ┻ ┃
┃ ┃
┗━┓ ┏━┛
┃ ┃神獸保佑
┃ ┃代碼無BUG！
┃ ┗━━━┓
┃ ┣┓
┃ ┏┛
┗┓┓┏━┳┓┏┛
┃┫┫ ┃┫┫
┗┻┛ ┗┻┛
@Description : MybatisPlus配置
@Author : Liang.Guangqing
@Date : Create in 2017/9/19 13:54
*/
@Configuration
@EnableConfigurationProperties(MybatisProperties.class)
public class MybatisPlusConfig {@Autowired
private Environment environment;
private RelaxedPropertyResolver propertyResolver;
@Autowired
private DataSource dataSource;
@Autowired
private MybatisProperties properties;
@Autowired
private ResourceLoader resourceLoader = new DefaultResourceLoader();
@Autowired(required = false)
private Interceptor[] interceptors;
@Autowired(required = false)
private DatabaseIdProvider databaseIdProvider;/**
- @Description : mybatis-plus SQL執行效率插件【生產環境可以關閉】
- @Author : Liang.Guangqing
- @Date : Create in 2017/9/19 13:57
*/
@Bean
public PerformanceInterceptor performanceInterceptor() {
return new PerformanceInterceptor();
}/**
配置DataSource
@return
@throws SQLException
*/
@Bean
public DataSource druidDataSource() throws SQLException {
this.propertyResolver = new RelaxedPropertyResolver(environment, "spring.datasource.");System.out.println("注入druid!");
DruidDataSource datasource = new DruidDataSource();
datasource.setUrl(propertyResolver.getProperty("url"));
datasource.setDriverClassName(propertyResolver.getProperty("driver-class-name"));
datasource.setUsername(propertyResolver.getProperty("username"));
datasource.setPassword(propertyResolver.getProperty("password"));
datasource.setInitialSize(Integer.valueOf(propertyResolver.getProperty("initial-size")));
datasource.setMinIdle(Integer.valueOf(propertyResolver.getProperty("min-idle")));
datasource.setMaxWait(Long.valueOf(propertyResolver.getProperty("max-wait")));
datasource.setMaxActive(Integer.valueOf(propertyResolver.getProperty("max-active")));
datasource.setMinEvictableIdleTimeMillis(Long.valueOf(propertyResolver.getProperty("min-evictable-idle-time-millis")));
try {
datasource.setFilters(propertyResolver.getProperty("filters"));
} catch (SQLException e) {
e.printStackTrace();
}
return datasource;
}/**
- @Description : mybatis-plus分頁插件
- @Author : Liang.Guangqing
- @Date : Create in 2017/9/19 13:59
*/
@Bean
public PaginationInterceptor paginationInterceptor() {
PaginationInterceptor page = new PaginationInterceptor();
page.setDialectType("mysql");
return page;
}/**
- 這里全部使用mybatis-autoconfigure 已經自動加載的資源。不手動指定
- 配置文件和mybatis-boot的配置文件同步
- @return
*/
@Bean
public MybatisSqlSessionFactoryBean mybatisSqlSessionFactoryBean() {
MybatisSqlSessionFactoryBean mybatisPlus = new MybatisSqlSessionFactoryBean();
mybatisPlus.setDataSource(dataSource);
mybatisPlus.setVfs(SpringBootVFS.class);
if (StringUtils.hasText(this.properties.getConfigLocation())) {
mybatisPlus.setConfigLocation(this.resourceLoader.getResource(this.properties.getConfigLocation()));
}
mybatisPlus.setConfiguration(properties.getConfiguration());
if (!ObjectUtils.isEmpty(this.interceptors)) {
mybatisPlus.setPlugins(this.interceptors);
}
// MP 全局配置，更多內容進入類看注釋
GlobalConfiguration globalConfig = new GlobalConfiguration();
globalConfig.setDbType(DBType.MYSQL.name());
// ID 策略 AUTO->0("數據庫ID自增") INPUT->1(用戶輸入ID") ID_WORKER->2("全局唯一ID") UUID->3("全局唯一ID")
globalConfig.setIdType(2);
mybatisPlus.setGlobalConfig(globalConfig);
MybatisConfiguration mc = new MybatisConfiguration();
mc.setDefaultScriptingLanguage(MybatisXMLLanguageDriver.class);
mybatisPlus.setConfiguration(mc);
if (this.databaseIdProvider != null) {
mybatisPlus.setDatabaseIdProvider(this.databaseIdProvider);
}
if (StringUtils.hasLength(this.properties.getTypeAliasesPackage())) {
mybatisPlus.setTypeAliasesPackage(this.properties.getTypeAliasesPackage());
}
if (StringUtils.hasLength(this.properties.getTypeHandlersPackage())) {
mybatisPlus.setTypeHandlersPackage(this.properties.getTypeHandlersPackage());
}
if (!ObjectUtils.isEmpty(this.properties.resolveMapperLocations())) {
mybatisPlus.setMapperLocations(this.properties.resolveMapperLocations());
}
return mybatisPlus;
}/**
- 注冊一個StatViewServlet
- @return
/
@Bean
public ServletRegistrationBean DruidStatViewServle(){
//org.springframework.boot.context.embedded.ServletRegistrationBean提供類的進行注冊.
ServletRegistrationBean servletRegistrationBean = new ServletRegistrationBean(new StatViewServlet(),"/druid/");
//添加初始化參數：initParams
//白名單：
// servletRegistrationBean.addInitParameter("allow","127.0.0.1");
//IP黑名單 (存在共同時，deny優先於allow) : 如果滿足deny的話提示:Sorry, you are not permitted to view this page.
// servletRegistrationBean.addInitParameter("deny","192.168.1.73");
//登錄查看信息的賬號密碼.
servletRegistrationBean.addInitParameter("loginUsername","root");
servletRegistrationBean.addInitParameter("loginPassword","root");
//是否能夠重置數據.
servletRegistrationBean.addInitParameter("resetEnable","false");
return servletRegistrationBean;
}/**
- 注冊一個：filterRegistrationBean
- @return
/
@Bean
public FilterRegistrationBean druidStatFilter(){
FilterRegistrationBean filterRegistrationBean = new FilterRegistrationBean(new WebStatFilter());
//添加過濾規則.
filterRegistrationBean.addUrlPatterns("/");
//添加不需要忽略的格式信息.
filterRegistrationBean.addInitParameter("exclusions",".js,.gif,.jpg,.png,.css,.ico,/druid/*");
return filterRegistrationBean;
}}
這里是完整的配置文件，需要注意的是引入的包，別引錯了！
4、還要開啟dao的掃描，很簡單，就是在啟動文件中添加@MapperScan("com.tdx.account_service.dao*")，如下是完整的
到這里，配置算是完成了，運行一下項目是可以運行起來的。
我覺得Mybatis-Plus最好玩得應該是代碼生成器這部分內容，下面是代碼生成器的使用過程
pom.xml上要加點東西
<dependency>
<groupId>org.apache.velocity</groupId>
<artifactId>velocity-engine-core</artifactId>
<version>2.0</version>
</dependency>
1、代碼生成器的配置文件
MybatisPlusConfig.java
/** * Copyright (c) 2011-2016, hubin (jobob@qq.com). * <p> * Licensed under the Apache License, Version 2.0 (the "License"); you may not * use this file except in compliance with the License. You may obtain a copy of * the License at * <p> * http://www.apache.org/licenses/LICENSE-2.0 * <p> * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the * License for the specific language governing permissions and limitations under * the License. */ package com.tdx.account_service.generator;import java.io.File;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;import com.baomidou.mybatisplus.enums.FieldFill;
import com.baomidou.mybatisplus.generator.AutoGenerator;
import com.baomidou.mybatisplus.generator.InjectionConfig;
import com.baomidou.mybatisplus.generator.config.DataSourceConfig;
import com.baomidou.mybatisplus.generator.config.FileOutConfig;
import com.baomidou.mybatisplus.generator.config.GlobalConfig;
import com.baomidou.mybatisplus.generator.config.PackageConfig;
import com.baomidou.mybatisplus.generator.config.StrategyConfig;
import com.baomidou.mybatisplus.generator.config.TemplateConfig;
import com.baomidou.mybatisplus.generator.config.converts.MySqlTypeConvert;
import com.baomidou.mybatisplus.generator.config.po.TableFill;
import com.baomidou.mybatisplus.generator.config.po.TableInfo;
import com.baomidou.mybatisplus.generator.config.rules.DbColumnType;
import com.baomidou.mybatisplus.generator.config.rules.DbType;
import com.baomidou.mybatisplus.generator.config.rules.NamingStrategy;/**
*code is far away from bug with the animal protecting
- ┏┓ ┏┓
*┏┛┻━━━┛┻┓
*┃ ┃
*┃ ━ ┃
*┃ ┳┛ ┗┳ ┃
*┃ ┃
*┃ ┻ ┃
*┃ ┃
*┗━┓ ┏━┛
* ┃ ┃神獸保佑
* ┃ ┃代碼無BUG！
* ┃ ┗━━━┓
* ┃ ┣┓
* ┃ ┏┛
* ┗┓┓┏━┳┓┏┛
* ┃┫┫ ┃┫┫
* ┗┻┛ ┗┻┛
*- @Description : MybatisPlus代碼生成器
- @Author : Liang.Guangqing
- @Date : Create in 2017/9/19 14:48
*/
public class MysqlGenerator {</span><span style="color: #0000ff">private</span> <span style="color: #0000ff">static</span> String packageName="account_service"; <span style="color: #008000">//</span><span style="color: #008000">文件路徑</span> <span style="color: #0000ff">private</span> <span style="color: #0000ff">static</span> String authorName="Liang.Guangqing"; <span style="color: #008000">//</span><span style="color: #008000">作者</span> <span style="color: #0000ff">private</span> <span style="color: #0000ff">static</span> String table="sc_user"; <span style="color: #008000">//</span><span style="color: #008000">table名字</span> <span style="color: #0000ff">private</span> <span style="color: #0000ff">static</span> String prefix="sc_"; <span style="color: #008000">//</span><span style="color: #008000">table前綴</span> <span style="color: #0000ff">private</span> <span style="color: #0000ff">static</span> File file = <span style="color: #0000ff">new</span><span style="color: #000000"> File(packageName); </span><span style="color: #0000ff">private</span> <span style="color: #0000ff">static</span> String path =<span style="color: #000000"> file.getAbsolutePath(); </span><span style="color: #0000ff">public</span> <span style="color: #0000ff">static</span> <span style="color: #0000ff">void</span><span style="color: #000000"> main(String[] args) { </span><span style="color: #008000">//</span><span style="color: #008000"> 自定義需要填充的字段</span> List<TableFill> tableFillList = <span style="color: #0000ff">new</span> ArrayList<><span style="color: #000000">(); tableFillList.add(</span><span style="color: #0000ff">new</span> TableFill("ASDD_SS"<span style="color: #000000">, FieldFill.INSERT_UPDATE)); </span><span style="color: #008000">//</span><span style="color: #008000"> 代碼生成器</span> AutoGenerator mpg = <span style="color: #0000ff">new</span><span style="color: #000000"> AutoGenerator().setGlobalConfig( </span><span style="color: #008000">//</span><span style="color: #008000"> 全局配置</span> <span style="color: #0000ff">new</span><span style="color: #000000"> GlobalConfig() .setOutputDir(path</span>+"/src/main/java")<span style="color: #008000">//</span><span style="color: #008000">輸出目錄</span> .setFileOverride(<span style="color: #0000ff">true</span>)<span style="color: #008000">//</span><span style="color: #008000"> 是否覆蓋文件</span> .setActiveRecord(<span style="color: #0000ff">true</span>)<span style="color: #008000">//</span><span style="color: #008000"> 開啟 activeRecord 模式</span> .setEnableCache(<span style="color: #0000ff">false</span>)<span style="color: #008000">//</span><span style="color: #008000"> XML 二級緩存</span> .setBaseResultMap(<span style="color: #0000ff">true</span>)<span style="color: #008000">//</span><span style="color: #008000"> XML ResultMap</span> .setBaseColumnList(<span style="color: #0000ff">true</span>)<span style="color: #008000">//</span><span style="color: #008000"> XML columList</span> .setOpen(<span style="color: #0000ff">false</span>)<span style="color: #008000">//</span><span style="color: #008000">生成后打開文件夾</span>.setAuthor(authorName)
// 自定義文件命名，注意 %s 會自動填充表實體屬性！
.setMapperName("%sMapper")
.setXmlName("%sMapper")
.setServiceName("%sService")
.setServiceImplName("%sServiceImpl")
.setControllerName("%sController")
).setDataSource(
// 數據源配置
new DataSourceConfig()
.setDbType(DbType.MYSQL)// 數據庫類型
.setTypeConvert(new MySqlTypeConvert() {
// 自定義數據庫表字段類型轉換【可選】
@Override
public DbColumnType processTypeConvert(String fieldType) {
System.out.println("轉換類型：" + fieldType);
// if ( fieldType.toLowerCase().contains( "tinyint" ) ) {
// return DbColumnType.BOOLEAN;
// }
return super.processTypeConvert(fieldType);
}
})
.setDriverName("com.mysql.jdbc.Driver")
.setUsername("root")
.setPassword("root")
.setUrl("jdbc:mysql://127.0.0.1:3306/tdx_shop?characterEncoding=utf8")
).setStrategy(
// 策略配置
new StrategyConfig()
// .setCapitalMode(true)// 全局大寫命名
//.setDbColumnUnderline(true)//全局下划線命名
.setTablePrefix(new String[]{prefix})// 此處可以修改為您的表前綴
.setNaming(NamingStrategy.underline_to_camel)// 表名生成策略
.setInclude(new String[] { table }) // 需要生成的表
.setRestControllerStyle(true)
//.setExclude(new String[]{"test"}) // 排除生成的表
// 自定義實體父類
// .setSuperEntityClass("com.baomidou.demo.TestEntity")
// 自定義實體，公共字段
//.setSuperEntityColumns(new String[]{"test_id"})
.setTableFillList(tableFillList)
// 自定義 mapper 父類
// .setSuperMapperClass("com.baomidou.demo.TestMapper")
// 自定義 service 父類
// .setSuperServiceClass("com.baomidou.demo.TestService")
// 自定義 service 實現類父類
// .setSuperServiceImplClass("com.baomidou.demo.TestServiceImpl")
// 自定義 controller 父類
.setSuperControllerClass("com.tdx."+packageName+".controller.AbstractController")
// 【實體】是否生成字段常量（默認 false）
// public static final String ID = "test_id";
// .setEntityColumnConstant(true)
// 【實體】是否為構建者模型（默認 false）
// public User setName(String name) {this.name = name; return this;}
// .setEntityBuilderModel(true)
// 【實體】是否為lombok模型（默認 false）<a href="https://projectlombok.org/">document</a>
// .setEntityLombokModel(true)
// Boolean類型字段是否移除is前綴處理
// .setEntityBooleanColumnRemoveIsPrefix(true)
// .setRestControllerStyle(true)
// .setControllerMappingHyphenStyle(true)
).setPackageInfo(
// 包配置
new PackageConfig()
//.setModuleName("User")
.setParent("com.tdx."+packageName)// 自定義包路徑
.setController("controller")// 這里是控制器包名，默認 web
.setEntity("entity")
.setMapper("dao")
.setService("service")
.setServiceImpl("service.impl")
//.setXml("mapper")
).setCfg(
// 注入自定義配置，可以在 VM 中使用 cfg.abc 設置的值
new InjectionConfig() {
@Override
public void initMap() {
Map<String, Object> map = new HashMap<>();
map.put("abc", this.getConfig().getGlobalConfig().getAuthor() + "-mp");
this.setMap(map);
}
}.setFileOutConfigList(Collections.<FileOutConfig>singletonList(new FileOutConfig("/templates/mapper.xml.vm") {
// 自定義輸出文件目錄
@Override
public String outputFile(TableInfo tableInfo) {
return path+"/src/main/resources/mapper/" + tableInfo.getEntityName() + "Mapper.xml";
}
}))
).setTemplate(
// 關閉默認 xml 生成，調整生成 至 根目錄
new TemplateConfig().setXml(null)
// 自定義模板配置，模板可以參考源碼 /mybatis-plus/src/main/resources/template 使用 copy
// 至您項目 src/main/resources/template 目錄下，模板名稱也可自定義如下配置：
// .setController("...");
// .setEntity("...");
// .setMapper("...");
// .setXml("...");
// .setService("...");
// .setServiceImpl("...");
);</span><span style="color: #008000">//</span><span style="color: #008000"> 執行生成</span>mpg.execute();
</span><span style="color: #008000">//</span><span style="color: #008000"> 打印注入設置，這里演示模板里面怎么獲取注入內容【可無】</span> System.err.println(mpg.getCfg().getMap().get("abc"<span style="color: #000000">)); }}
文件中修改的內容還是很多的，最主要的還是mysql的連接信息，沒理由你賬號，密碼都錯了還能連得上吧，其次設置一下你生成的模板文件路徑，我這里生成的路徑在上面圖可以看得到，是在com.tdx.account_service下的，注意，xml文件要放在resources下，不然是識別的，說找不到這個方法
按照官網的代碼模板生成的文件基本是白白的，主要是mybatis-Plus集成了公共方法，很多常用的工具都可以引用了。在這里我提供一下我修改后Controller.java.vm文件，主要還是按照我自己的習慣去弄的
controller.java.vm
package ${package.Controller};import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;if(${restControllerStyle})
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;else
import org.springframework.stereotype.Controller;
end
if(${superControllerClassPackage})
import ${superControllerClassPackage};
end
import org.springframework.beans.factory.annotation.Autowired;
import com.baomidou.mybatisplus.mapper.EntityWrapper;
import com.baomidou.mybatisplus.plugins.Page;
import ${package.Service}.${table.serviceName};
import ${package.Entity}.common.DatatablesJSON;
import ${package.Entity}.common.JSONResult;
import ${package.Entity}.${entity};
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;/**
*code is far away from bug with the animal protecting
- ┏┓ ┏┓
*┏┛┻━━━┛┻┓
*┃ ┃
*┃ ━ ┃
*┃ ┳┛ ┗┳ ┃
*┃ ┃
*┃ ┻ ┃
*┃ ┃
*┗━┓ ┏━┛
* ┃ ┃神獸保佑
* ┃ ┃代碼無BUG！
* ┃ ┗━━━┓
* ┃ ┣┓
* ┃ ┏┛
* ┗┓┓┏━┳┓┏┛
* ┃┫┫ ┃┫┫
* ┗┻┛ ┗┻┛
*- @description : ${entity} 控制器
</span><span style="color: #808080">@author</span><span style="color: #008000"> ${author}- @since ${date}
*/if(${restControllerStyle})
@RestController
else
@Controller
end
@RequestMapping("#if(${package.ModuleName})/${package.ModuleName}#end/#if(${controllerMappingHyphenStyle})${controllerMappingHyphen}#else${table.entityPath}#end")
if(${superControllerClass})
public class ${table.controllerName} extends ${superControllerClass} {
else
public class ${table.controllerName} {
end
</span><span style="color: #0000ff">private</span> <span style="color: #0000ff">final</span> Logger logger = LoggerFactory.getLogger(${table.controllerName}.<span style="color: #0000ff">class</span><span style="color: #000000">); @Autowired </span><span style="color: #0000ff">public</span><span style="color: #000000"> ${table.serviceName} ${table.entityPath}Service; </span><span style="color: #008000">/**</span><span style="color: #008000"> * @description : 獲取分頁列表 * --------------------------------- * </span><span style="color: #808080">@author</span><span style="color: #008000"> : ${author} * </span><span style="color: #808080">@since</span><span style="color: #008000"> : Create in ${date} </span><span style="color: #008000">*/</span><span style="color: #000000"> @RequestMapping(value </span>= "/get${entity}List",method =<span style="color: #000000"> RequestMethod.POST) </span><span style="color: #0000ff">public</span> Object get${entity}List(${entity} param , @RequestParam(value = "draw",defaultValue = "0"<span style="color: #000000">) Integer draw, @RequestParam(value </span>= "length"<span style="color: #000000">) Integer length, @RequestParam(value </span>= "start"<span style="color: #000000">) Integer start) { DatatablesJSON</span><${entity}> resJson=<span style="color: #0000ff">new</span> DatatablesJSON<><span style="color: #000000">(); </span><span style="color: #0000ff">try</span><span style="color: #000000"> { Integer pageNo</span>=<span style="color: #000000">getPageNo(start,length); Page</span><${entity}> page=<span style="color: #0000ff">new</span> Page<${entity}><span style="color: #000000">(pageNo,length); ${table.entityPath}Service.selectPage(page,</span><span style="color: #0000ff">new</span> EntityWrapper<${entity}><span style="color: #000000">(param)); resJson.setDraw(draw</span>++<span style="color: #000000">); resJson.setRecordsTotal(page.getTotal()); resJson.setRecordsFiltered(page.getTotal()); resJson.setData(page.getRecords()); resJson.setSuccess(</span><span style="color: #0000ff">true</span><span style="color: #000000">); }</span><span style="color: #0000ff">catch</span><span style="color: #000000"> (Exception e){ resJson.setSuccess(</span><span style="color: #0000ff">false</span><span style="color: #000000">); resJson.setError(</span>"異常信息:{"+e.getClass().getName()+"}"<span style="color: #000000">); logger.info(</span>"異常信息:{}"+<span style="color: #000000">e.getMessage()); } </span><span style="color: #0000ff">return</span><span style="color: #000000"> resJson; } </span><span style="color: #008000">/**</span><span style="color: #008000"> * @description : 通過id獲取${entity} * --------------------------------- * </span><span style="color: #808080">@author</span><span style="color: #008000"> : ${author} * </span><span style="color: #808080">@since</span><span style="color: #008000"> : Create in ${date} </span><span style="color: #008000">*/</span><span style="color: #000000"> @RequestMapping(value </span>= "/get${entity}ById",method =<span style="color: #000000"> RequestMethod.GET) </span><span style="color: #0000ff">public</span><span style="color: #000000"> Object get${entity}ById(String id) { JSONResult</span><${entity}> resJson = <span style="color: #0000ff">new</span> JSONResult<><span style="color: #000000">(); </span><span style="color: #0000ff">try</span><span style="color: #000000"> { ${entity} param</span>=<span style="color: #000000"> ${table.entityPath}Service.selectById(id); resJson.setData(param); resJson.setSuccess(</span><span style="color: #0000ff">true</span><span style="color: #000000">); }</span><span style="color: #0000ff">catch</span><span style="color: #000000"> (Exception e) { resJson.setSuccess(</span><span style="color: #0000ff">false</span><span style="color: #000000">); resJson.setMessage(</span>"異常信息:{"+e.getClass().getName()+"}"<span style="color: #000000">); logger.info(</span>"異常信息:{}"+<span style="color: #000000">e.getMessage()); } </span><span style="color: #0000ff">return</span><span style="color: #000000"> resJson; } </span><span style="color: #008000">/**</span><span style="color: #008000"> * @description : 通過id刪除${entity} * --------------------------------- * </span><span style="color: #808080">@author</span><span style="color: #008000"> : ${author} * </span><span style="color: #808080">@since</span><span style="color: #008000"> : Create in ${date} </span><span style="color: #008000">*/</span><span style="color: #000000"> @RequestMapping(value </span>= "/delete${entity}ById",method =<span style="color: #000000"> RequestMethod.GET) </span><span style="color: #0000ff">public</span><span style="color: #000000"> Object delete${entity}ById(String id) { JSONResult</span><${entity}> resJson = <span style="color: #0000ff">new</span> JSONResult<><span style="color: #000000">(); </span><span style="color: #0000ff">try</span><span style="color: #000000">{ resJson.setSuccess(${table.entityPath}Service.deleteById(id)); }</span><span style="color: #0000ff">catch</span><span style="color: #000000"> (Exception e) { resJson.setSuccess(</span><span style="color: #0000ff">false</span><span style="color: #000000">); resJson.setMessage(</span>"異常信息:{"+e.getClass().getName()+"}"<span style="color: #000000">); logger.info(</span>"異常信息:{}"+<span style="color: #000000">e.getMessage()); } </span><span style="color: #0000ff">return</span><span style="color: #000000"> resJson; } </span><span style="color: #008000">/**</span><span style="color: #008000"> * @description : 通過id更新${entity} * --------------------------------- * </span><span style="color: #808080">@author</span><span style="color: #008000"> : ${author} * </span><span style="color: #808080">@since</span><span style="color: #008000"> : Create in ${date} </span><span style="color: #008000">*/</span><span style="color: #000000"> @RequestMapping(value </span>= "/update${entity}ById",method =<span style="color: #000000"> RequestMethod.POST) </span><span style="color: #0000ff">public</span><span style="color: #000000"> Object update${entity}ById(${entity} param) { JSONResult</span><${entity}> resJson = <span style="color: #0000ff">new</span> JSONResult<><span style="color: #000000">(); </span><span style="color: #0000ff">try</span><span style="color: #000000">{ resJson.setSuccess(${table.entityPath}Service.updateById(param)); }</span><span style="color: #0000ff">catch</span><span style="color: #000000"> (Exception e) { resJson.setSuccess(</span><span style="color: #0000ff">false</span><span style="color: #000000">); resJson.setMessage(</span>"異常信息:{"+e.getClass().getName()+"}"<span style="color: #000000">); logger.info(</span>"異常信息:{}"+<span style="color: #000000">e.getMessage()); } </span><span style="color: #0000ff">return</span><span style="color: #000000"> resJson; } </span><span style="color: #008000">/**</span><span style="color: #008000"> * @description : 添加${entity} * --------------------------------- * </span><span style="color: #808080">@author</span><span style="color: #008000"> : ${author} * </span><span style="color: #808080">@since</span><span style="color: #008000"> : Create in ${date} </span><span style="color: #008000">*/</span><span style="color: #000000"> @RequestMapping(value </span>= "/add${entity}",method =<span style="color: #000000"> RequestMethod.POST) </span><span style="color: #0000ff">public</span><span style="color: #000000"> Object add${entity}(${entity} param) { JSONResult</span><${entity}> resJson = <span style="color: #0000ff">new</span> JSONResult<><span style="color: #000000">(); </span><span style="color: #0000ff">try</span><span style="color: #000000">{ resJson.setSuccess(${table.entityPath}Service.insert(param)); }</span><span style="color: #0000ff">catch</span><span style="color: #000000"> (Exception e) { resJson.setSuccess(</span><span style="color: #0000ff">false</span><span style="color: #000000">); resJson.setMessage(</span>"異常信息:{"+e.getClass().getName()+"}"<span style="color: #000000">); logger.info(</span>"異常信息:{}"+<span style="color: #000000">e.getMessage()); } </span><span style="color: #0000ff">return</span><span style="color: #000000"> resJson; }}
除了這個文件，其他代碼模板我都是按照官網那樣的，這里引用3個外部的文件，有AbstractController.java（控制器基類）、DatatablesJSON.java和JSONResult.java，然后這些文件又引用了其他文件，我懵逼了，怎么文件這么多啊，看來如果全部都貼上來得多占地方啊，所以我選擇相信碼雲，如果需要請在碼雲上按照少的文件下載，碼雲地址。需要注意的是，我的模板是直接代替了mybatis-plus.jar中的templates目錄。
最后就到了測試過程
下面的代碼段都是放在Controller文件里面，然后啟動程序，對應端口，請求方法。測試的話是需要按照自己的實體類操作的，所以僅供參考。
/** * 分頁 PAGE */ @GetMapping("/test") public Page<User> test() { return userService.selectPage(new Page<User>(0, 12)); }</span><span style="color: #008000">/**</span><span style="color: #008000"> * AR 部分測試 </span><span style="color: #008000">*/</span><span style="color: #000000"> @GetMapping(</span>"/test1"<span style="color: #000000">) </span><span style="color: #0000ff">public</span> Page<User><span style="color: #000000"> test1() { User user </span>= <span style="color: #0000ff">new</span><span style="color: #000000"> User(); System.err.println(</span>"刪除所有：" + user.delete(<span style="color: #0000ff">null</span><span style="color: #000000">)); </span><span style="color: #008000">//</span><span style="color: #008000">user.setId(2017091801L);</span> user.setAccout("test"+num++<span style="color: #000000">); user.setType(</span>"test"<span style="color: #000000">); user.setCreateTime(</span><span style="color: #0000ff">new</span><span style="color: #000000"> Date()); user.setPhone(</span>"13111110000"<span style="color: #000000">); user.setPassword(</span>"123456"<span style="color: #000000">); user.setNickname(</span>"guangqing"+2*num++<span style="color: #000000">); user.insert(); System.err.println(</span>"查詢插入結果：" +<span style="color: #000000"> user.selectById().toString()); </span><span style="color: #008000">//</span><span style="color: #008000">user.setNickname("mybatis-plus-ar");</span> System.err.println("更新：" +<span style="color: #000000"> user.updateById()); </span><span style="color: #0000ff">return</span> user.selectPage(<span style="color: #0000ff">new</span> Page<User>(0, 12), <span style="color: #0000ff">null</span><span style="color: #000000">); } </span><span style="color: #008000">/**</span><span style="color: #008000"> * 增刪改查 CRUD </span><span style="color: #008000">*/</span><span style="color: #000000"> @GetMapping(</span>"/test2"<span style="color: #000000">) </span><span style="color: #0000ff">public</span><span style="color: #000000"> User test2() { User user </span>= <span style="color: #0000ff">new</span><span style="color: #000000"> User(); user.setId(</span>123456L<span style="color: #000000">); user.setAccout(</span>"test"<span style="color: #000000">); user.setType(</span>"test"<span style="color: #000000">); user.setCreateTime(</span><span style="color: #0000ff">new</span><span style="color: #000000"> Date()); user.setPhone(</span>"13111110000"<span style="color: #000000">); user.setPassword(</span>"123456"<span style="color: #000000">); user.setNickname(</span>"guangqing"<span style="color: #000000">); System.err.println(</span>"刪除一條數據：" + userService.deleteById(1L<span style="color: #000000">)); System.err.println(</span>"插入一條數據：" +<span style="color: #000000"> userService.insert(user)); User user2 </span>= <span style="color: #0000ff">new</span><span style="color: #000000"> User(); user.setId(</span>223456L<span style="color: #000000">); user.setAccout(</span>"test2"<span style="color: #000000">); user.setType(</span>"test"<span style="color: #000000">); user.setCreateTime(</span><span style="color: #0000ff">new</span><span style="color: #000000"> Date()); user.setPhone(</span>"13111110000"<span style="color: #000000">); user.setPassword(</span>"123456"<span style="color: #000000">); user.setNickname(</span>"guangqing"<span style="color: #000000">); </span><span style="color: #0000ff">boolean</span> result =<span style="color: #000000"> userService.insert(user); </span><span style="color: #008000">//</span><span style="color: #008000"> 自動回寫的ID</span> Long id =<span style="color: #000000"> user.getId(); System.err.println(</span>"插入一條數據：" + result + ", 插入信息：" +<span style="color: #000000"> user.toString()); System.err.println(</span>"查詢：" +<span style="color: #000000"> userService.selectById(id).toString()); Page</span><User> userListPage = userService.selectPage(<span style="color: #0000ff">new</span> Page<User>(1, 5), <span style="color: #0000ff">new</span> EntityWrapper<>(<span style="color: #0000ff">new</span><span style="color: #000000"> User())); System.err.println(</span>"total=" + userListPage.getTotal() + ", current list size=" +<span style="color: #000000"> userListPage.getRecords().size()); </span><span style="color: #0000ff">return</span> userService.selectById(1L<span style="color: #000000">); } @GetMapping(</span>"testSelect"<span style="color: #000000">) </span><span style="color: #0000ff">public</span><span style="color: #000000"> Object testSelect() { Integer start </span>= 0<span style="color: #000000">; Integer length </span>=10<span style="color: #000000">; User param </span>= <span style="color: #0000ff">new</span><span style="color: #000000"> User(); </span><span style="color: #008000">//</span><span style="color: #008000">param.setNickname("guangqing2");</span> Integer pageNo=<span style="color: #000000">getPageNo(start,length); Page</span><User> page =<span style="color: #0000ff">new</span> Page<User><span style="color: #000000">(pageNo,length); EntityWrapper</span><User> ew = <span style="color: #0000ff">new</span> EntityWrapper<User><span style="color: #000000">(); ew.setEntity(param); ew.where(</span>"password={0}","123456"<span style="color: #000000">) .like(</span>"nickname","guangqing"<span style="color: #000000">) .ge(</span>"create_time","2017-09-21 15:50:00"<span style="color: #000000">); userService.selectPage(page, ew); DatatablesJSON</span><User> resJson= <span style="color: #0000ff">new</span> DatatablesJSON<><span style="color: #000000">(); </span><span style="color: #008000">//</span><span style="color: #008000">resJson.setDraw(draw++);</span>resJson.setRecordsTotal(page.getTotal());
resJson.setRecordsFiltered(page.getTotal());
resJson.setData(page.getRecords());
return resJson;
}@GetMapping(</span>"/selectsql"<span style="color: #000000">) </span><span style="color: #0000ff">public</span><span style="color: #000000"> Object getUserBySql() { JSONObject result </span>= <span style="color: #0000ff">new</span><span style="color: #000000"> JSONObject(); result.put(</span>"records"<span style="color: #000000">, userService.selectListBySQL()); </span><span style="color: #0000ff">return</span><span style="color: #000000"> result; } </span><span style="color: #008000">/**</span><span style="color: #008000"> * 7、分頁 size 一頁顯示數量 current 當前頁碼 * 方式一：</span><span style="color: #008000; text-decoration: underline">http://localhost</span><span style="color: #008000">:8080/user/page?size=1&current=1<br> * 方式二：</span><span style="color: #008000; text-decoration: underline">http://localhost</span><span style="color: #008000">:8080/user/pagehelper?size=1&current=1<br> </span><span style="color: #008000">*/</span> <span style="color: #008000">//</span><span style="color: #008000"> 參數模式分頁</span> @GetMapping("/page"<span style="color: #000000">) </span><span style="color: #0000ff">public</span><span style="color: #000000"> Object page(Page page) { </span><span style="color: #0000ff">return</span><span style="color: #000000"> userService.selectPage(page); } </span><span style="color: #008000">//</span><span style="color: #008000"> ThreadLocal 模式分頁</span> @GetMapping("/pagehelper"<span style="color: #000000">) </span><span style="color: #0000ff">public</span><span style="color: #000000"> Object pagehelper(Page page) { PageHelper.setPagination(page); page.setRecords(userService.selectList(</span><span style="color: #0000ff">null</span><span style="color: #000000">)); page.setTotal(PageHelper.freeTotal());</span><span style="color: #008000">//</span><span style="color: #008000">獲取總數並釋放資源 也可以 PageHelper.getTotal()</span> <span style="color: #0000ff">return</span><span style="color: #000000"> page; } </span><span style="color: #008000">/**</span><span style="color: #008000"> * 測試事物 * </span><span style="color: #008000; text-decoration: underline">http://localhost</span><span style="color: #008000">:8080/user/test_transactional<br> * 訪問如下並未發現插入數據說明事物可靠！！<br> * </span><span style="color: #008000; text-decoration: underline">http://localhost</span><span style="color: #008000">:8080/user/test<br> * <br> * 啟動 Application 加上 @EnableTransactionManagement 注解其實可無默認貌似就開啟了<br> * 需要事物的方法加上 @Transactional 必須的哦！！ </span><span style="color: #008000">*/</span><span style="color: #000000"> @Transactional @GetMapping(</span>"/test_transactional"<span style="color: #000000">) </span><span style="color: #0000ff">public</span> <span style="color: #0000ff">void</span><span style="color: #000000"> testTransactional() { </span><span style="color: #008000">//</span><span style="color: #008000">userService.insert(new User(1000L, "測試事物", 16, 3));</span> System.out.println(" 這里手動拋出異常，自動回滾數據"<span style="color: #000000">); </span><span style="color: #0000ff">throw</span> <span style="color: #0000ff">new</span><span style="color: #000000"> RuntimeException(); }</span></pre>
這么多的測試，我覺得最有趣的是條件構造器，在官網上有更齊全的，而我這里是按照我自己的需求寫的。
最后謝謝大家的觀看，寫博客經驗不足，寫得不好請見諒，如果能給你帶來幫助請點個贊，若遇到不明白的，或者我有寫錯的地方請提出，謝謝！