一、開發環境
Eclipse:eclipse-jee-luna-SR1a-win32;
JDK:jdk-8u121-windows-i586.exe;
MySql:MySQL Server 5.5;
二、創建Maven項目
1.創建父項目
NEW->PROJECT->MAVEN->Maven Project,點擊next>進入下一步,可以看到New Maven Project界面,
點擊Next >進入下一步,進入Select an Archetype界面,在Filter:輸入simple,選擇org.apache.maven.archetypes,
點擊next>,進入Enter a group id for the artifact界面,
填寫好Group Id和Artifact Id,我這里在ssm分組下創建了一個parent項目。點擊Finish。
2.創建子項目
選中parent項目,右鍵,選擇new->project->maven->maven Module,點擊Next,進入Enter a module name界面,
填寫Module Name,點擊next>,進入Select an Archetype界面,
在Filter輸入start,選擇maven-archetype-quickstart,點擊next>,進入Specify Archetype parameters界面,
修改Package,點擊Finish。就會創建parent項目下的一個子項目dao。
打開parent項目的pom.xml
可以看到有個<moduls><module>dao</module></modules>,這說明dao已經是parent項目的子項目了。
接着我們按照上述方法繼續創建子項目service和model。
創建web子項目時,在進入Select an Archetype界面,在Filter填寫web,選擇org.apache.maven.archetypes.
點擊next>,修改package,最后點擊Finish。
這樣,我們的父項目和所有子項目就已經創建完了。如下圖:
右鍵web子項目(其他子項目操作相同),build path->configure build path,打開Java Build Path,點擊Libraies頁,
如圖,刪除JRE System Lirary[J2SE-1.5],重新選擇你自己的jdk;
三、添加Springmvc+MyBatis依賴的jar包
在父類的pom.xml中添加SpringMvc+MyBatis所有依賴包

1 <?xml version="1.0" encoding="UTF-8"?> 2 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 3 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> 4 <modelVersion>4.0.0</modelVersion> 5 6 <groupId>ssm</groupId> 7 <artifactId>parent</artifactId> 8 <version>1</version> 9 <packaging>pom</packaging> 10 11 <distributionManagement> 12 <site> 13 <id>website</id> 14 <url>scp://webhost.company.com/www/website</url> 15 </site> 16 </distributionManagement> 17 18 <properties> 19 <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> 20 <!-- spring版本號 --> 21 <spring.version>4.0.2.RELEASE</spring.version> 22 <!-- mybatis版本號 --> 23 <mybatis.version>3.2.6</mybatis.version> 24 <!-- log4j日志文件管理包版本 --> 25 <slf4j.version>1.7.7</slf4j.version> 26 <log4j.version>1.2.17</log4j.version> 27 </properties> 28 <modules> 29 <module>dao</module> 30 <module>web</module> 31 <module>service</module> 32 <module>model</module> 33 </modules> 34 35 36 37 <!-- <dependencyManagement> --> 38 <dependencies> 39 <dependency> 40 <groupId>junit</groupId> 41 <artifactId>junit</artifactId> 42 <version>4.11</version> 43 <!-- 表示開發的時候引入,發布的時候不會加載此包 --> 44 <scope>test</scope> 45 </dependency> 46 <!-- spring核心包 --> 47 <dependency> 48 <groupId>org.springframework</groupId> 49 <artifactId>spring-core</artifactId> 50 <version>${spring.version}</version> 51 </dependency> 52 <dependency> 53 <groupId>org.springframework</groupId> 54 <artifactId>spring-web</artifactId> 55 <version>${spring.version}</version> 56 </dependency> 57 <dependency> 58 <groupId>org.springframework</groupId> 59 <artifactId>spring-oxm</artifactId> 60 <version>${spring.version}</version> 61 </dependency> 62 <dependency> 63 <groupId>org.springframework</groupId> 64 <artifactId>spring-tx</artifactId> 65 <version>${spring.version}</version> 66 </dependency> 67 <dependency> 68 <groupId>org.springframework</groupId> 69 <artifactId>spring-jdbc</artifactId> 70 <version>${spring.version}</version> 71 </dependency> 72 <dependency> 73 <groupId>org.springframework</groupId> 74 <artifactId>spring-webmvc</artifactId> 75 <version>${spring.version}</version> 76 </dependency> 77 <dependency> 78 <groupId>org.springframework</groupId> 79 <artifactId>spring-aop</artifactId> 80 <version>${spring.version}</version> 81 </dependency> 82 <dependency> 83 <groupId>org.springframework</groupId> 84 <artifactId>spring-context-support</artifactId> 85 <version>${spring.version}</version> 86 </dependency> 87 <dependency> 88 <groupId>org.springframework</groupId> 89 <artifactId>spring-test</artifactId> 90 <version>${spring.version}</version> 91 </dependency> 92 <!-- mybatis核心包 --> 93 <dependency> 94 <groupId>org.mybatis</groupId> 95 <artifactId>mybatis</artifactId> 96 <version>${mybatis.version}</version> 97 </dependency> 98 <!-- mybatis/spring包 --> 99 <dependency> 100 <groupId>org.mybatis</groupId> 101 <artifactId>mybatis-spring</artifactId> 102 <version>1.2.2</version> 103 </dependency> 104 <!-- 導入java ee jar 包 --> 105 <dependency> 106 <groupId>javax</groupId> 107 <artifactId>javaee-api</artifactId> 108 <version>7.0</version> 109 <scope>provided</scope> 110 <exclusions> 111 <exclusion> 112 <groupId>javax</groupId> 113 <artifactId>javaee-api</artifactId> 114 </exclusion> 115 </exclusions> 116 </dependency> 117 118 119 <!-- 導入Mysql數據庫鏈接jar包 --> 120 <dependency> 121 <groupId>mysql</groupId> 122 <artifactId>mysql-connector-java</artifactId> 123 <version>5.1.30</version> 124 </dependency> 125 <!-- 導入dbcp的jar包,用來在applicationContext.xml中配置數據庫 --> 126 <dependency> 127 <groupId>commons-dbcp</groupId> 128 <artifactId>commons-dbcp</artifactId> 129 <version>1.2.2</version> 130 </dependency> 131 <!-- JSTL標簽類 --> 132 <dependency> 133 <groupId>jstl</groupId> 134 <artifactId>jstl</artifactId> 135 <version>1.2</version> 136 </dependency> 137 <!-- 日志文件管理包 --> 138 <!-- log start --> 139 <dependency> 140 <groupId>log4j</groupId> 141 <artifactId>log4j</artifactId> 142 <version>${log4j.version}</version> 143 </dependency> 144 <!-- 格式化對象,方便輸出日志 --> 145 <dependency> 146 <groupId>com.alibaba</groupId> 147 <artifactId>fastjson</artifactId> 148 <version>1.1.41</version> 149 </dependency> 150 <dependency> 151 <groupId>org.slf4j</groupId> 152 <artifactId>slf4j-api</artifactId> 153 <version>${slf4j.version}</version> 154 </dependency> 155 <dependency> 156 <groupId>org.slf4j</groupId> 157 <artifactId>slf4j-log4j12</artifactId> 158 <version>${slf4j.version}</version> 159 </dependency> 160 <!-- log end --> 161 <!-- 映入JSON --> 162 <dependency> 163 <groupId>org.codehaus.jackson</groupId> 164 <artifactId>jackson-mapper-asl</artifactId> 165 <version>1.9.13</version> 166 </dependency> 167 <!-- 上傳組件包 --> 168 <dependency> 169 <groupId>commons-fileupload</groupId> 170 <artifactId>commons-fileupload</artifactId> 171 <version>1.3.1</version> 172 </dependency> 173 <dependency> 174 <groupId>commons-io</groupId> 175 <artifactId>commons-io</artifactId> 176 <version>2.4</version> 177 </dependency> 178 <dependency> 179 <groupId>commons-codec</groupId> 180 <artifactId>commons-codec</artifactId> 181 <version>1.9</version> 182 </dependency> 183 <!-- https://mvnrepository.com/artifact/org.mybatis.generator/mybatis-generator-core自動創建代碼 --> 184 <dependency> 185 <groupId>org.mybatis.generator</groupId> 186 <artifactId>mybatis-generator-core</artifactId> 187 <version>1.3.5</version> 188 </dependency> 189 <dependency> 190 <groupId>com.fasterxml.jackson.dataformat</groupId> 191 <artifactId>jackson-dataformat-xml</artifactId> 192 <version>2.3.2</version> 193 </dependency> 194 <dependency> 195 <groupId>com.fasterxml.jackson.core</groupId> 196 <artifactId>jackson-databind</artifactId> 197 <version>2.3.2</version> 198 </dependency> 199 <dependency> 200 <groupId>com.fasterxml.jackson.core</groupId> 201 <artifactId>jackson-annotations</artifactId> 202 <version>2.3.2</version> 203 </dependency> 204 205 <dependency> 206 <groupId>com.fasterxml.jackson.core</groupId> 207 <artifactId>jackson-core</artifactId> 208 <version>2.3.2</version> 209 </dependency> 210 211 </dependencies> 212 <!-- </dependencyManagement> --> 213 214 215 216 </project>
四,自動生成代碼
1.創建數據庫和表
/* Navicat MySQL Data Transfer Source Server : localhost Source Server Version : 50521 Source Host : localhost:3306 Source Database : test Target Server Type : MYSQL Target Server Version : 50521 File Encoding : 65001 Date: 2017-03-28 11:11:09 */ SET FOREIGN_KEY_CHECKS=0; -- ---------------------------- -- Table structure for `user_t` -- ---------------------------- DROP TABLE IF EXISTS `user_t`; CREATE TABLE `user_t` ( `id` int(10) unsigned NOT NULL AUTO_INCREMENT, `user_name` varchar(255) DEFAULT NULL, `password` varchar(255) DEFAULT NULL, `age` int(11) DEFAULT NULL, PRIMARY KEY (`id`) ) ENGINE=InnoDB AUTO_INCREMENT=2 DEFAULT CHARSET=utf8; -- ---------------------------- -- Records of user_t -- ---------------------------- INSERT INTO `user_t` VALUES ('1', '張三', '123', '22');
2.利用mybatis-generator-core-1.3.5.jar自動創建代碼
1.在本地創建一個文件夾(我在D盤創建了一個generator文件夾);
2.在generator文件夾下創建一個src文件夾,
3.添加2個jar包mybatis-generator-core-1.3.5.jar和mysql-connector-java-5.1.30.jar
4.在創建一個generatorConfig.xml

1 <?xml version="1.0" encoding="UTF-8"?> 2 <!DOCTYPE generatorConfiguration 3 PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN" 4 "http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd"> 5 <generatorConfiguration> 6 <!-- 數據庫驅動 --> 7 <classPathEntry location="mysql-connector-java-5.1.30.jar" /> 8 <context id="DB2Tables" targetRuntime="MyBatis3"> 9 <commentGenerator> 10 <property name="suppressDate" value="true" /> 11 <!-- 是否去除自動生成的注釋 true:是 : false:否 --> 12 <property name="suppressAllComments" value="true" /> 13 </commentGenerator> 14 <!--數據庫鏈接URL,用戶名、密碼 --> 15 <jdbcConnection driverClass="com.mysql.jdbc.Driver" 16 connectionURL="jdbc:mysql://127.0.0.1:3306/test" userId="root" 17 password="root"> 18 </jdbcConnection> 19 <javaTypeResolver> 20 <property name="forceBigDecimals" value="false" /> 21 </javaTypeResolver> 22 <!-- 生成模型的包名和位置 --> 23 <javaModelGenerator targetPackage="com.gwx.model" 24 targetProject="src"> 25 <property name="enableSubPackages" value="true" /> 26 <property name="trimStrings" value="true" /> 27 </javaModelGenerator> 28 <!-- 生成映射文件的包名和位置 --> 29 <sqlMapGenerator targetPackage="com.gwx.mapping" 30 targetProject="src"> 31 <property name="enableSubPackages" value="true" /> 32 </sqlMapGenerator> 33 <!-- 生成DAO的包名和位置 --> 34 <javaClientGenerator type="XMLMAPPER" 35 targetPackage="com.gwx.dao" targetProject="src"> 36 <property name="enableSubPackages" value="true" /> 37 </javaClientGenerator> 38 <!-- 要生成的表 tableName是數據庫中的表名或視圖名 domainObjectName是實體類名 --> 39 <table tableName="user_t" domainObjectName="User" 40 enableCountByExample="false" enableUpdateByExample="false" 41 enableDeleteByExample="false" enableSelectByExample="false" 42 selectByExampleQueryId="false"></table> 43 </context> 44 </generatorConfiguration>
5創建一個start.bat

1 set current_path="%cd%" 2 java -jar mybatis-generator-core-1.3.5.jar -configfile generatorConfig.xml -overwrite 3 pause 4 exit
整體目錄結構如下:
然后運行start.bat(雙擊),則自動生成了dao,mapping,model代碼
五、添加子項目之間的依賴
1.給web子項目添加service子項目的依賴
打開web項目的pom.xml
給<dependencies>下添加
<dependency>
<groupId>ssm</groupId>
<artifactId>service</artifactId>
<version>1</version>
</dependency>
完整web/pom.xml如下:

1 <?xml version="1.0"?> 2 <project 3 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" 4 xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> 5 <modelVersion>4.0.0</modelVersion> 6 <parent> 7 <groupId>ssm</groupId> 8 <artifactId>parent</artifactId> 9 <version>1</version> 10 </parent> 11 <artifactId>web</artifactId> 12 <packaging>war</packaging> 13 <dependencies> 14 <dependency> 15 <groupId>junit</groupId> 16 <artifactId>junit</artifactId> 17 <version>3.8.1</version> 18 <scope>test</scope> 19 </dependency> 20 <dependency> 21 <groupId>ssm</groupId> 22 <artifactId>service</artifactId> 23 <version>1</version> 24 </dependency> 25 </dependencies> 26 <build> 27 <finalName>web</finalName> 28 <plugins> 29 <plugin> 30 <groupId>org.apache.tomcat.maven</groupId> 31 <artifactId>tomcat7-maven-plugin</artifactId> 32 <version>2.2</version> 33 </plugin> 34 </plugins> 35 </build> 36 </project>
2.給service子項目添加dao子項目的依賴
打開service項目的pom.xml
給<dependencies>下添加
<dependency>
<groupId>ssm</groupId>
<artifactId>dao</artifactId>
<version>1</version>
</dependency>
完整service/pom.xml如下:

1 <?xml version="1.0"?> 2 <project 3 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" 4 xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> 5 <modelVersion>4.0.0</modelVersion> 6 <parent> 7 <groupId>ssm</groupId> 8 <artifactId>parent</artifactId> 9 <version>1</version> 10 </parent> 11 <artifactId>service</artifactId> 12 <name>service</name> 13 <url>http://maven.apache.org</url> 14 <properties> 15 <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> 16 </properties> 17 <dependencies> 18 <dependency> 19 <groupId>junit</groupId> 20 <artifactId>junit</artifactId> 21 <version>3.8.1</version> 22 <scope>test</scope> 23 </dependency> 24 <dependency> 25 <groupId>ssm</groupId> 26 <artifactId>dao</artifactId> 27 <version>1</version> 28 </dependency> 29 </dependencies> 30 </project>
3.給dao子項目添加model子項目的依賴
打開dao項目的pom.xml
給<dependencies>下添加
<dependency>
<groupId>ssm</groupId>
<artifactId>model</artifactId>
<version>1</version>
</dependency>
完整dao/pom.xml如下:

1 <?xml version="1.0"?> 2 <project 3 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" 4 xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> 5 <modelVersion>4.0.0</modelVersion> 6 <parent> 7 <groupId>ssm</groupId> 8 <artifactId>parent</artifactId> 9 <version>1</version> 10 </parent> 11 <artifactId>dao</artifactId> 12 <name>dao</name> 13 <url>http://maven.apache.org</url> 14 <properties> 15 <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> 16 </properties> 17 <dependencies> 18 <dependency> 19 <groupId>junit</groupId> 20 <artifactId>junit</artifactId> 21 <version>3.8.1</version> 22 <scope>test</scope> 23 </dependency> 24 <dependency> 25 <groupId>ssm</groupId> 26 <artifactId>model</artifactId> 27 <version>1</version> 28 </dependency> 29 </dependencies> 30 </project>
整個項目依賴關系添加完畢:web依賴service,service依賴dao,dao依賴model,parent是父項目
六、添加代碼
1.model子項目創建com.gwx.model包,將上面第四節自動生成model目錄下的代碼復制到com.gwx.model包下;
2.dao子項目src/main/java下創建com.gwx.dao和在src/main/resources下創建mapping包,將上面第四節自動生成dao目錄下的的代碼復制到
com.gwx.dao包下,將mapping目錄下自動生成的代碼復制到mapping包下;
3.service子項目創建com.gwx.service包和com.gwx.service.impl包,在com.gwx.service包下創建接口IUserService

1 package com.gwx.service; 2 3 import com.gwx.model.User; 4 5 public interface IUserService { 6 User getUserById(int id); 7 8 }
在com.gwx.service.impl包下創建UserService

1 package com.gwx.service.impl; 2 3 import javax.annotation.Resource; 4 5 import org.springframework.stereotype.Service; 6 7 import com.gwx.dao.UserMapper; 8 import com.gwx.model.User; 9 import com.gwx.service.IUserService; 10 11 12 13 @Service("userService") 14 public class UserService implements IUserService { 15 16 @Resource 17 private UserMapper userDao; 18 19 public User getUserById(int userId) { 20 return this.userDao.selectByPrimaryKey(userId); 21 } 22 23 }
七、Spring與MyBatis的整合
1.在子項目web項目中的resources目錄下創建jdbc.properties

1 driver=com.mysql.jdbc.Driver 2 url=jdbc:mysql://127.0.0.1:3306/test?useUnicode=true&characterEncoding=UTF-8 3 username=root 4 password=root 5 #定義初始連接數 6 initialSize=0 7 #定義最大連接數 8 maxActive=20 9 #定義最大空閑 10 maxIdle=20 11 #定義最小空閑 12 minIdle=1 13 #定義最長等待時間 14 maxWait=60000
2.Log4j的配置(可有可無)
在你需要查看日志的子項目的resources目錄下創建log4j.properties

1 #定義LOG輸出級別 2 log4j.rootLogger=INFO,Console,File 3 #定義日志輸出目的地為控制台 4 log4j.appender.Console=org.apache.log4j.ConsoleAppender 5 log4j.appender.Console.Target=System.out 6 #可以靈活地指定日志輸出格式,下面一行是指定具體的格式 7 log4j.appender.Console.layout = org.apache.log4j.PatternLayout 8 log4j.appender.Console.layout.ConversionPattern=[%c] - %m%n 9 10 #文件大小到達指定尺寸的時候產生一個新的文件 11 log4j.appender.File = org.apache.log4j.RollingFileAppender 12 #指定輸出目錄 13 log4j.appender.File.File = logs/web/log.log 14 #定義文件最大大小 15 log4j.appender.File.MaxFileSize = 10MB 16 #輸出所以日志,如果換成DEBUG表示輸出DEBUG以上級別日志 17 log4j.appender.File.Threshold = ALL 18 log4j.appender.File.layout = org.apache.log4j.PatternLayout 19 log4j.appender.File.layout.ConversionPattern =[%p] [%d{yyyy-MM-dd HH\:mm\:ss}][%c]%m%n
3.在子項目dao層的resources目錄下創建spring-mybatis.xml

1 <?xml version="1.0" encoding="UTF-8"?> 2 <beans xmlns="http://www.springframework.org/schema/beans" 3 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" 4 xmlns:context="http://www.springframework.org/schema/context" 5 xmlns:mvc="http://www.springframework.org/schema/mvc" 6 xsi:schemaLocation="http://www.springframework.org/schema/beans 7 http://www.springframework.org/schema/beans/spring-beans-4.0.xsd 8 http://www.springframework.org/schema/context 9 http://www.springframework.org/schema/context/spring-context-4.0.xsd 10 http://www.springframework.org/schema/mvc 11 http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd"> 12 <!-- 自動掃描 --> 13 <context:component-scan base-package="com.gwx.dao" /> 14 <context:component-scan base-package="com.gwx.service" /> 15 <context:component-scan base-package="com.gwx.service.impl" /> 16 <context:component-scan base-package="com.gwx.controller" /> 17 <!-- 引入配置文件 --> 18 <bean id="propertyConfigurer" 19 class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"> 20 <property name="location" value="classpath:jdbc.properties" /> 21 </bean> 22 23 <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" 24 destroy-method="close"> 25 <property name="driverClassName" value="${driver}" /> 26 <property name="url" value="${url}" /> 27 <property name="username" value="${username}" /> 28 <property name="password" value="${password}" /> 29 <!-- 初始化連接大小 --> 30 <property name="initialSize" value="${initialSize}"></property> 31 <!-- 連接池最大數量 --> 32 <property name="maxActive" value="${maxActive}"></property> 33 <!-- 連接池最大空閑 --> 34 <property name="maxIdle" value="${maxIdle}"></property> 35 <!-- 連接池最小空閑 --> 36 <property name="minIdle" value="${minIdle}"></property> 37 <!-- 獲取連接最大等待時間 --> 38 <property name="maxWait" value="${maxWait}"></property> 39 </bean> 40 <!-- spring和MyBatis完美整合,不需要mybatis的配置映射文件 --> 41 <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> 42 <property name="dataSource" ref="dataSource" /> 43 <!-- 自動掃描mapping.xml文件 --> 44 <property name="mapperLocations" value="classpath:mapping/*.xml"></property> 45 </bean> 46 <!-- DAO接口所在包名,Spring會自動查找其下的類 --> 47 <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> 48 <property name="basePackage" value="com.gwx.dao" /> 49 <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property> 50 </bean> 51 <!-- (事務管理)transaction manager, use JtaTransactionManager for global tx --> 52 <bean id="transactionManager" 53 class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> 54 <property name="dataSource" ref="dataSource" /> 55 </bean> 56 </beans>
4.Junit測試
先將parent/pom.xml,model/pom.xml,dao/pom.xml,service/pom.xml中的
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<!-- <scope>test</scope> -->
</dependency>
刪除;將web/pom.xml
中的修改為
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<!-- <scope>test</scope> -->
</dependency>
再右鍵web項目->properties->Java Compiler->修改為和你當前jdk版本一致;(我本地的jdk版本為1.8)如圖
在web項目中的src/main/java包下創建com/gwx/test包,創建TestMyBatis.java

1 package com.gwx.test; 2 import javax.annotation.Resource; 3 4 import org.junit.Test; 5 import org.junit.runner.RunWith; 6 import org.springframework.test.context.ContextConfiguration; 7 import org.springframework.test.context.junit4.SpringJUnit4ClassRunner; 8 9 import com.gwx.model.User; 10 import com.gwx.service.IUserService; 11 12 @RunWith(SpringJUnit4ClassRunner.class) // 表示繼承了SpringJUnit4ClassRunner類 13 @ContextConfiguration(locations = { "classpath:spring-mybatis.xml" }) 14 15 public class TestMyBatis { 16 @Resource 17 private IUserService userService; 18 19 @Test 20 public void test() { 21 User user = userService.getUserById(1); 22 System.out.println(user.getUserName()); 23 } 24 }
運行。控制台出現'張三'則表示整合成功!
八、SpringMVC整合
在web子項目的resources下創建spring-mvc.xml

1 <?xml version="1.0" encoding="UTF-8"?> 2 <beans xmlns="http://www.springframework.org/schema/beans" 3 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" 4 xmlns:context="http://www.springframework.org/schema/context" 5 xmlns:mvc="http://www.springframework.org/schema/mvc" 6 xsi:schemaLocation="http://www.springframework.org/schema/beans 7 http://www.springframework.org/schema/beans/spring-beans-3.1.xsd 8 http://www.springframework.org/schema/context 9 http://www.springframework.org/schema/context/spring-context-3.1.xsd 10 http://www.springframework.org/schema/mvc 11 http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd"> 12 13 <!--避免IE執行AJAX時,返回JSON出現下載文件 --> 14 <bean id="stringHttpMessageConverter" 15 class="org.springframework.http.converter.StringHttpMessageConverter"> 16 <property name="supportedMediaTypes"> 17 <list> 18 <value>text/plain;charset=UTF-8</value> 19 <value>application/json;charset=UTF-8</value> 20 </list> 21 </property> 22 </bean> 23 <!-- 避免IE執行AJAX時,返回JSON出現下載文件 --> 24 <!-- Jackson 是Spring 自帶的功能 --> 25 <bean id="mappingJackson2HttpMessageConverter" 26 class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter"> 27 <property name="supportedMediaTypes"> 28 <list> 29 <value>application/json;charset=UTF-8</value> 30 <value>application/xml;charset=UTF-8</value> 31 <value>text/html;charset=UTF-8</value> 32 <value>text/plain;charset=UTF-8</value> 33 <value>text/xml;charset=UTF-8</value> 34 <value>text/javascript;charset=UTF-8</value> 35 </list> 36 </property> 37 </bean> 38 39 <!-- 啟動SpringMVC的注解功能,完成請求和注解POJO的映射 --> 40 <bean 41 class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter"> 42 <property name="messageConverters"> 43 <list> 44 <!-- JSON轉換器 --> 45 <ref bean="mappingJackson2HttpMessageConverter" /> 46 </list> 47 </property> 48 </bean> 49 50 <!-- 對靜態資源的訪問 --> 51 <!-- <mvc:resources mapping="/js/**" location="/js/" /><mvc:resources mapping="/css/**" 52 location="/css/" /> --> 53 54 <!-- 自動掃描該包,使SpringMVC認為包下用了@controller注解的類是控制器 --> 55 <context:component-scan base-package="com.gwx.controller" /> 56 57 <!-- 添加注解驅動 --> 58 <mvc:annotation-driven enable-matrix-variables="true" > 59 <mvc:message-converters> 60 <ref bean="stringHttpMessageConverter" /> 61 <ref bean="mappingJackson2HttpMessageConverter" /> 62 </mvc:message-converters> 63 </mvc:annotation-driven> 64 <!-- 允許對靜態資源文件的訪問 --> 65 66 <mvc:default-servlet-handler /> 67 68 <!-- 定義跳轉的文件的前后綴 ,視圖模式配置 --> 69 <bean 70 class="org.springframework.web.servlet.view.InternalResourceViewResolver"> 71 <!-- 這里的配置我的理解是自動給后面action的方法return的字符串加上前綴和后綴,變成一個 可用的url地址 --> 72 <property name="prefix" value="/WEB-INF/jsp/" /> 73 <property name="suffix" value=".jsp" /> 74 </bean> 75 76 <!-- 配置文件上傳,如果沒有使用文件上傳可以不用配置,當然如果不配,那么配置文件中也不必引入上傳組件包 --> 77 <bean id="multipartResolver" 78 class="org.springframework.web.multipart.commons.CommonsMultipartResolver"> 79 <!-- 默認編碼 --> 80 <property name="defaultEncoding" value="utf-8" /> 81 <!-- 文件大小最大值 --> 82 <property name="maxUploadSize" value="10485760000" /> 83 <!-- 內存中的最大值 --> 84 <property name="maxInMemorySize" value="40960" /> 85 </bean> 86 </beans>
再配置web.xml

1 <?xml version="1.0" encoding="UTF-8"?> 2 <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 3 xmlns="http://java.sun.com/xml/ns/javaee" 4 xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" 5 version="3.0"> 6 <display-name>Archetype Created Web Application</display-name> 7 8 <!-- Spring和mybatis的配置文件 --> 9 <context-param> 10 <param-name>contextConfigLocation</param-name> 11 <param-value>classpath:spring-mybatis.xml</param-value> 12 </context-param> 13 14 <!-- 編碼過濾器 --> 15 <filter> 16 <filter-name>encodingFilter</filter-name> 17 <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class> 18 <async-supported>true</async-supported> 19 <init-param> 20 <param-name>encoding</param-name> 21 <param-value>UTF-8</param-value> 22 </init-param> 23 </filter> 24 <filter-mapping> 25 <filter-name>encodingFilter</filter-name> 26 <url-pattern>/*</url-pattern> 27 </filter-mapping> 28 29 <!-- Spring監聽器 --> 30 <listener> 31 <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> 32 </listener> 33 34 <!-- 防止Spring內存溢出監聽器 --> 35 <listener> 36 <listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class> 37 </listener> 38 39 <!-- Spring MVC servlet --> 40 <servlet> 41 <servlet-name>SpringMVC</servlet-name> 42 <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> 43 <init-param> 44 <param-name>contextConfigLocation</param-name> 45 <param-value>classpath:spring-mvc.xml</param-value> 46 </init-param> 47 <load-on-startup>1</load-on-startup> 48 <async-supported>true</async-supported> 49 </servlet> 50 <servlet-mapping> 51 <servlet-name>SpringMVC</servlet-name> 52 <!-- 此處可以可以配置成*.do,對應struts的后綴習慣 --> 53 <url-pattern>/</url-pattern> 54 </servlet-mapping> 55 56 <welcome-file-list> 57 <welcome-file>/index.html</welcome-file> 58 <welcome-file>/index.jsp</welcome-file> 59 </welcome-file-list> 60 </web-app>
在web子項目的 Java Resources下創建package com.gwx.controller,在com.gwx.controller下面創建UserController.java

1 package com.gwx.controller; 2 3 import javax.annotation.Resource; 4 import javax.servlet.http.HttpServletRequest; 5 6 import org.springframework.stereotype.Controller; 7 import org.springframework.ui.Model; 8 import org.springframework.web.bind.annotation.RequestMapping; 9 import org.springframework.web.bind.annotation.ResponseBody; 10 11 import com.gwx.model.User; 12 import com.gwx.service.IUserService; 13 import com.gwx.util.JacksonUtil; 14 15 @Controller 16 @RequestMapping("/user") 17 public class UserController { 18 19 @Resource 20 private IUserService userService; 21 22 @RequestMapping("/showUser") 23 public String toIndex(HttpServletRequest request, Model model) { 24 User user = this.userService.getUserById(1); 25 model.addAttribute("user", user); 26 return "User"; 27 } 28 @RequestMapping("/showJson") 29 @ResponseBody 30 public String showJson(int id) { 31 User user = this.userService.getUserById(id); 32 String jSon = JacksonUtil.toJSon(user); 33 return jSon; 34 } 35 }
在model子項目下創建package com.gwx.util,在com.gwx.util下面創建JacksonUtil.java和httpModel.java

1 package com.gwx.util; 2 3 import java.io.Serializable; 4 5 public class HttpModel implements Serializable{ 6 7 /** 8 * 9 */ 10 private static final long serialVersionUID = -7484615771443870211L; 11 12 private int code = 0; 13 private Object object; 14 public int getCode() { 15 return code; 16 } 17 public void setCode(int code) { 18 this.code = code; 19 } 20 public Object getObject() { 21 return object; 22 } 23 public void setObject(Object object) { 24 this.object = object; 25 } 26 27 }

1 package com.gwx.util; 2 3 import java.util.UUID; 4 5 import com.fasterxml.jackson.core.type.TypeReference; 6 import com.fasterxml.jackson.databind.ObjectMapper; 7 8 9 /** 10 * The class JacksonUtil 11 * 12 * json字符與對像轉換 13 * 14 * @version: $Revision$ $Date$ $LastChangedBy$ 15 * 16 */ 17 public final class JacksonUtil { 18 19 public static ObjectMapper objectMapper; 20 21 /** 22 * 使用泛型方法,把json字符串轉換為相應的JavaBean對象。 23 * (1)轉換為普通JavaBean:readValue(json,Student.class) 24 * (2)轉換為List,如List<Student>,將第二個參數傳遞為Student 25 * [].class.然后使用Arrays.asList();方法把得到的數組轉換為特定類型的List 26 * 27 * @param jsonStr 28 * @param valueType 29 * @return 30 */ 31 public static <T> T readValue(String jsonStr, Class<T> valueType) { 32 if (objectMapper == null) { 33 objectMapper = new ObjectMapper(); 34 } 35 36 try { 37 return objectMapper.readValue(jsonStr, valueType); 38 } catch (Exception e) { 39 e.printStackTrace(); 40 } 41 42 return null; 43 } 44 45 /** 46 * json數組轉List 47 * @param jsonStr 48 * @param valueTypeRef 49 * @return 50 */ 51 public static <T> T readValue(String jsonStr, TypeReference<T> valueTypeRef){ 52 if (objectMapper == null) { 53 objectMapper = new ObjectMapper(); 54 } 55 56 try { 57 return objectMapper.readValue(jsonStr, valueTypeRef); 58 } catch (Exception e) { 59 e.printStackTrace(); 60 } 61 62 return null; 63 } 64 65 /** 66 * 把JavaBean轉換為json字符串 67 * 68 * @param object 69 * @return 70 */ 71 public static String toJSon(Object object) { 72 if (objectMapper == null) { 73 objectMapper = new ObjectMapper(); 74 } 75 76 try { 77 return objectMapper.writeValueAsString(object); 78 } catch (Exception e) { 79 e.printStackTrace(); 80 } 81 82 return null; 83 } 84 85 /** 86 * 生成手機令牌 87 * @return 88 */ 89 public final static String generateToken() { 90 return UUID.randomUUID().toString().replace("-", ""); 91 } 92 93 public static String toHttpJson(int code,Object object) 94 { 95 HttpModel model = new HttpModel(); 96 model.setCode(code); 97 model.setObject(object); 98 return JacksonUtil.toJSon(model); 99 } 100 101 }
在web項目的src/main/webapp/WEB-INF下創建jsp文件夾,然后創建User.jsp

1 <%@ page language="java" contentType="text/html; charset=UTF-8" 2 pageEncoding="UTF-8"%> 3 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 4 <html> 5 <head> 6 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 7 <title>姓名</title> 8 </head> 9 <body>${user.userName} 10 </body> 11 </html>
此時,springmvc和json都已經整合完成!
開始運行web項目—>右鍵web->Run as->Run configurations->
左側選擇Maven Build
右側在Name出填寫你的name
在Main頁的Base directory出選擇web項目,在Goals出輸入 tomcat7:run
在JRE頁選擇你自己的jdk
然后切換到Main頁,點擊Run。
如果沒有報錯或者異常,應該就沒問題了!
然后springmvc測試
在瀏覽器上輸入網址http://localhost:8080/web/user/showUser?id=1就會返回到User.jsp頁面。如圖:
json測試:輸入網址http://localhost:8080/web/user/showJson?id=1返回結果:
OK!
九、總結
以上就是最近整合的springmvc+mybatis+json的Maven管理一整套項目!是我親自一步步搭建成功!
如果大家發現有什么問題,歡迎指正批評!
如果想要轉載,請加載轉載地址【http://www.cnblogs.com/gwx238044/articles/6633252.html】!