mybatis3.2.6整合spring4.0和springMVC4.0开发

1. 新建项目，导入jar包

在eclipse/myeclipse上新建一个web项目，导入如下图所示的jar包，关于jar包的整合资源可到

http://download.csdn.net/detail/qwe6112071/9467007

进行下载



如果使用了maven，则配置更为方便：

<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<!-- spring版本号 -->
<spring.version>4.0.2.RELEASE</spring.version>
<!-- mybatis版本号 -->
<mybatis.version>3.2.6</mybatis.version>
<!-- log4j日志文件管理包版本 -->
<slf4j.version>1.7.7</slf4j.version>
<log4j.version>1.2.17</log4j.version>
</properties>

<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<!-- 表示开发的时候引入，发布的时候不会加载此包 -->
<scope>test</scope>
</dependency>
<!-- spring核心包 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${spring.version}</version>
</dependency>

<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-oxm</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>${spring.version}</version>
</dependency>

<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>${spring.version}</version>
</dependency>

<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>${spring.version}</version>
</dependency>

<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>${spring.version}</version>
</dependency>

<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- mybatis核心包 -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>${mybatis.version}</version>
</dependency>
<!-- mybatis/spring包 -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.2.2</version>
</dependency>
<!-- 导入java ee jar 包 -->
<dependency>
<groupId>javax</groupId>
<artifactId>javaee-api</artifactId>
<version>7.0</version>
</dependency>
<!-- 导入Mysql数据库链接jar包 -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.30</version>
</dependency>
<!-- 导入dbcp的jar包，用来在applicationContext.xml中配置数据库 -->
<dependency>
<groupId>commons-dbcp</groupId>
<artifactId>commons-dbcp</artifactId>
<version>1.2.2</version>
</dependency>
<!-- 日志文件管理包 -->
<!-- log start -->
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>${log4j.version}</version>
</dependency>

<!-- 格式化对象，方便输出日志 -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.1.41</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>${slf4j.version}</version>
</dependency>

<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>${slf4j.version}</version>
</dependency>
<!-- log end -->
<!-- 映入JSON -->
<dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>jackson-mapper-asl</artifactId>
<version>1.9.13</version>
</dependency>
<dependency>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<version>2.4</version>
</dependency>
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>1.6.11</version>
</dependency>
</dependencies>

2. 配置web.xml文件

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" version="3.0">
<display-name>demo</display-name>

<!--　该servlet为tomcat,jetty等容器提供,将静态资源映射从/改为/static/目录，如原来访问　http://localhost/foo.css　,现在http://localhost/static/foo.css　-->
<!-- 不拦截静态文件 -->
<servlet-mapping>
<servlet-name>default</servlet-name>
<url-pattern>/js/*</url-pattern>
<url-pattern>/css/*</url-pattern>
<url-pattern>/images/*</url-pattern>
<url-pattern>/fonts/*</url-pattern>
</servlet-mapping>

<!-- Spring和mybatis的配置文件 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath*:spring/spring-*.xml</param-value>
</context-param>
<!-- 编码过滤器 -->
<filter>
<filter-name>encodingFilter</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<async-supported>true</async-supported>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>encodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<!-- Spring监听器 -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- 防止Spring内存溢出监听器 -->
<listener>
<listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class>
</listener>

<!-- Spring MVC servlet -->
<servlet>
<servlet-name>SpringMVC</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring/spring-mvc.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
<async-supported>true</async-supported>
</servlet>
<servlet-mapping>
<servlet-name>SpringMVC</servlet-name>
<!-- 此处可以可以配置成*.do，对应struts的后缀习惯 -->
<url-pattern>/</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>/index.jsp</welcome-file>
</welcome-file-list>

</web-app>

3. 配置日志记录文件

在classpath路径下创建文件log4j.properties，并在里面填写

log4j.rootLogger=DEBUG,Console,File
#定义日志输出目的地为控制台
log4j.appender.Console=org.apache.log4j.ConsoleAppender
log4j.appender.Console.Target=System.out
#可以灵活地指定日志输出格式，下面一行是指定具体的格式
log4j.appender.Console.layout = org.apache.log4j.PatternLayout
log4j.appender.Console.layout.ConversionPattern=[%c] - %m%n

#文件大小到达指定尺寸的时候产生一个新的文件
log4j.appender.File = org.apache.log4j.RollingFileAppender
#指定输出目录
log4j.appender.File.File = logs/ssm.log
#定义文件最大大小
log4j.appender.File.MaxFileSize = 10MB
# 输出所以日志，如果换成DEBUG表示输出DEBUG以上级别日志
log4j.appender.File.Threshold = ALL
log4j.appender.File.layout = org.apache.log4j.PatternLayout
log4j.appender.File.layout.ConversionPattern =[%p] [%d{yyyy-MM-dd HH\:mm\:ss}][%c]%m%n

4. 配置spring-mybatis整合文件

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:aop="http://www.springframework.org/schema/aop"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd"> 
<!-- 自动扫描 -->
<context:component-scan base-package="com.yc" />
<!-- 引入配置文件 -->
<bean id="propertyConfigurer"
class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="location" value="classpath:jdbc.properties" />
</bean>

<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
destroy-method="close">
<property name="driverClassName" value="${driver}" />
<property name="url" value="${url}" />
<property name="username" value="${username}" />
<property name="password" value="${password}" />
<!-- 初始化连接大小 -->
<property name="initialSize" value="${initialSize}"></property>
<!-- 连接池最大数量 -->
<property name="maxActive" value="${maxActive}"></property>
<!-- 连接池最大空闲 -->
<property name="maxIdle" value="${maxIdle}"></property>
<!-- 连接池最小空闲 -->
<property name="minIdle" value="${minIdle}"></property>
<!-- 获取连接最大等待时间 -->
<property name="maxWait" value="${maxWait}"></property>
</bean>

<!-- spring和MyBatis完美整合，不需要mybatis的配置映射文件 -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<!-- 实例化sqlSessionFactory时需要使用上述配置好的数据源以及SQL映射文件 -->
<property name="dataSource" ref="dataSource" />
<!-- 自动扫描mapping.xml文件 , 省掉Configuration.xml里的手工配置 -->
<property name="mapperLocations" value="classpath*:com/yc/mapping/*Mapper.xml"></property>
</bean>

<!-- DAO接口所在包名，Spring会自动查找对应包及其子包下的所有映射接口类 -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.yc.dao" />
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>
</bean>

<!-- (事务管理)transaction manager, use JtaTransactionManager for global tx -->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource" /> </bean>
<!-- 拦截器方式配置事物 -->
<tx:advice id="transactionAdvice" transaction-manager="transactionManager">
<tx:attributes>
<tx:method name="add*" propagation="REQUIRED" />
<tx:method name="append*" propagation="REQUIRED" />
<tx:method name="insert*" propagation="REQUIRED" />
<tx:method name="save*" propagation="REQUIRED" />
<tx:method name="update*" propagation="REQUIRED" />
<tx:method name="modify*" propagation="REQUIRED" />
<tx:method name="edit*" propagation="REQUIRED" />
<tx:method name="delete*" propagation="REQUIRED" />
<tx:method name="remove*" propagation="REQUIRED" />
<tx:method name="repair" propagation="REQUIRED" />
<tx:method name="delAndRepair" propagation="REQUIRED" />

<tx:method name="get*" propagation="SUPPORTS" />
<tx:method name="find*" propagation="SUPPORTS" />
<tx:method name="load*" propagation="SUPPORTS" />
<tx:method name="search*" propagation="SUPPORTS" />

<tx:method name="*" propagation="SUPPORTS" />
</tx:attributes>
</tx:advice>
<aop:config>
<aop:pointcut id="transactionPointcut"
expression="execution(* com.yc.service..*Impl.*(..))" />
<aop:advisor pointcut-ref="transactionPointcut"
advice-ref="transactionAdvice" />
</aop:config>
</beans>

5. 配置model、mapping文件

先配置数据库测试表，这里以一个移动端后台的用户表为例，因为已经在数据库建好表了，这时可以到$MYSQL_HOME/bin目录下使用命令：

mysqldump -u用户名 -p密码 数据库 用户表

来导出相应的表结构如

mysqldump -uyc -pyc yc User > /home/user.sql

到对应目录打开user.sql文件则得到如下的建表sql语句：

DROP TABLE IF EXISTS `User`;
CREATE TABLE `User` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`headImg` varchar(255) DEFAULT NULL,
`isDeleted` int(11) NOT NULL DEFAULT '0',
`name` varchar(255) DEFAULT NULL,
`password` varchar(255) DEFAULT NULL,
`phoneNum` varchar(255) DEFAULT NULL,
`userType` varchar(255) DEFAULT NULL,
`openId` varchar(255) DEFAULT NULL,
PRIMARY KEY (`id`)
) ENGINE=MyISAM AUTO_INCREMENT=14 DEFAULT CHARSET=utf8;
#以下插入两条测试数据
LOCK TABLES `User` WRITE;
/*!40000 ALTER TABLE `User` DISABLE KEYS */;
INSERT INTO `User` VALUES (12,'http://localhost:8090/dheadImg/1.jpg',0,'glcnk','$2a$10$EpmkvDhQU5AHkn3Mvq1oDuJbT83aZRooqF0ZxdawiQsTz/sWfpxJa','1234','normal',NULL),(13,'http://localhost:8090/dheadImg/1.jpg',0,'psnys','$2a$10$dv4EQjbMwmUpbNB.kFySNe9RRJ1jwAXliK4FotoRLDrdfSAyWkk7C','3412','normal',NULL);
UNLOCK TABLES;

完成数据库建表后，创建pojo文件、xml等文件，这里有两种方式，一种是手动配置,另一种是通过数据库反向生成：

1. 手动配置

先创建对应的pojo类

package com.yc.model;

public class User {
private Integer id;

private String headimg;

private Integer isdeleted;

private String name;

private String password;

private String phonenum;

private String usertype;

private String openid;

//方便测试时用到
@Override
public String toString() {
return "User [id=" + id + ", headimg=" + headimg + ", isdeleted="
+ isdeleted + ", name=" + name + ", password=" + password
+ ", phonenum=" + phonenum + ", usertype=" + usertype
+ ", openid=" + openid + "]";
}

getter and setter here.....
}

创建映射接口java文件

package com.yc.dao;

import com.yc.model.User;

public interface UserMapper {
User selectByPrimaryKey(Integer id);

}

创建对应的UserMapper.xml文件

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
<mapper namespace="com.yc.dao.UserMapper" ><!-- 必须是UserMapper接口的全类名 -->
<resultMap id="BaseResultMap" type="com.yc.model.User" >
<id column="id" property="id" jdbcType="INTEGER" />
<result column="headImg" property="headimg" jdbcType="VARCHAR" />
<result column="isDeleted" property="isdeleted" jdbcType="INTEGER" />
<result column="name" property="name" jdbcType="VARCHAR" />
<result column="password" property="password" jdbcType="VARCHAR" />
<result column="phoneNum" property="phonenum" jdbcType="VARCHAR" />
<result column="userType" property="usertype" jdbcType="VARCHAR" />
<result column="openId" property="openid" jdbcType="VARCHAR" />
</resultMap>
<sql id="Base_Column_List" >
id, headImg, isDeleted, name, password, phoneNum, userType, openId
</sql>
<select id="selectByPrimaryKey" resultMap="BaseResultMap" parameterType="java.lang.Integer" >
select
<include refid="Base_Column_List" />
from User
where id = #{id,jdbcType=INTEGER}
</select>
</mapper>

这里需要注意的是一些开发规范的问题，对应spring-mybatis.xml扫描配置，UserMapper.java文件存放在classpath:com/yc/dao下，UserMapper.xml存放在classpath:com/yc/mapping下，同时要特别注意的是UserMapper.xml文件中的namespace套与UserMapper.java文件相对应，如本例中的

com.yc.model.User

如果这里配置错误的话，我们在测试时会报如下错误信息：

nested exception is org.springframework.core.NestedIOException: Failed to parse mapping resource: ‘file [/home/myBatisYc/target/classes/com/yc/mapping/UserMapper.xml]’; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. Cause: org.apache.ibatis.builder.BuilderException: Error resolving class. Cause: org.apache.ibatis.type.TypeException: Could not resolve type alias ‘com.yc.User’. Cause: java.lang.ClassNotFoundException: Cannot find class: com.yc.User

2. 通过数据库建表反向生成

可先到

http://download.csdn.net/detail/qwe6112071/9467019

下载生成工具，解压，然后配置里面的generator.xml文件，配置实例如下：

<?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">
<generatorConfiguration>
<!-- 数据库驱动包位置 -->
<classPathEntry location="/home/zenghao/下载/generator/mysql-connector-java-5.1.34.jar" />
<!-- <classPathEntry location="C:\oracle\product\10.2.0\db_1\jdbc\lib\ojdbc14.jar" />-->
<context id="DB2Tables" targetRuntime="MyBatis3">
<commentGenerator>
<property name="suppressAllComments" value="true" />
</commentGenerator>
<!-- 数据库链接URL、用户名、密码 -->
<jdbcConnection driverClass="com.mysql.jdbc.Driver" connectionURL="jdbc:mysql://localhost:3306/yc" userId="root" password="root">
<!--<jdbcConnection driverClass="oracle.jdbc.driver.OracleDriver" connectionURL="jdbc:oracle:thin:@localhost:1521:orcl" userId="msa" password="msa">-->
</jdbcConnection>
<javaTypeResolver>
<property name="forceBigDecimals" value="false" />
</javaTypeResolver>
<!-- 生成模型的包名和位置 -->
<javaModelGenerator targetPackage="com.yc.model" targetProject="/home/zenghao/mybatis">
<property name="enableSubPackages" value="true" />
<property name="trimStrings" value="true" />
</javaModelGenerator>
<!-- 生成的映射文件包名和位置 -->
<sqlMapGenerator targetPackage="com.yc.mapping" targetProject="/home/zenghao/mybatis">
<property name="enableSubPackages" value="true" />
</sqlMapGenerator>
<!-- 生成DAO的包名和位置 -->
<javaClientGenerator type="XMLMAPPER" targetPackage="com.yc.dao" targetProject="/home/zenghao/mybatis">
<property name="enableSubPackages" value="true" />
</javaClientGenerator>
<!-- 要生成那些表(更改tableName和domainObjectName就可以) -->
<table tableName="Article" domainObjectName="BackArticle" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false" />
<table tableName="User" domainObjectName="User" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false" />
</context>
</generatorConfiguration>

注意根据你的下载路径来配置正确的数据库驱动包位置，对应targetProject等属性的配置，不一定真正要在你的项目中，可以先生成到任意位置，然后复制导入，配置好后，在当前目录下通过命令行执行

java -jar mybatis-generator-core-1.3.2.jar -configfile generator.xml -overwrite

即可

6. 使用junit4测试配置

创建测试文件：

package com.yc.test;

import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import com.yc.dao.UserMapper;
import com.yc.model.User;

public class Test1 {
private UserMapper userMapper;
/**
* 这个before方法在所有的测试方法之前执行，并且只执行一次
* 所有做Junit单元测试时一些初始化工作可以在这个方法里面进行
* 比如在before方法里面初始化ApplicationContext和usermapper
*/
@Before
public void before(){
ApplicationContext ac = new ClassPathXmlApplicationContext("classpath:spring/spring-mybatis.xml");
userMapper = (UserMapper) ac.getBean("userMapper");
}

@Test
public void test(){
User user = userMapper.selectByPrimaryKey(12);
System.out.println(user);
/*
* 结合前面数据库插入的数据，这里会打印出信息：
*   User [id=12, headimg=http://localhost:8090/dheadImg/1.jpg, isdeleted=0, name=glcnk, password=$2a$10$EpmkvDhQU5AHkn3Mvq1oDuJbT83aZRooqF0ZxdawiQsTz/sWfpxJa, phonenum=1234, usertype=normal, openid=null]
*/
}
/*
* 在测试方法后调用，主要进行资源的销毁工作。
*/
@After
public void after(){
userMapper = null;
ac = null;
}
}

7. 配置spring-mvc.xml文件

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd"> 
<!-- 启用spring mvc 注解 -->
<mvc:annotation-driven />
<!-- 自动扫描该包，使SpringMVC认为包下用了@controller注解的类是控制器 -->
<context:component-scan base-package="com.yc.controller" />
<context:component-scan base-package="com.yc.service" />
<!--避免IE执行AJAX时，返回JSON出现下载文件 -->
<bean id="mappingJacksonHttpMessageConverter"
class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter">
<property name="supportedMediaTypes">
<list>
<value>text/html;charset=UTF-8</value>
</list>
</property>
</bean>
<!-- 启动SpringMVC的注解功能，完成请求和注解POJO的映射 -->
<bean
class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
<property name="messageConverters">
<list>
<ref bean="mappingJacksonHttpMessageConverter" /> <!-- JSON转换器 -->
</list>
</property>
</bean>
<!-- 定义跳转的文件的前后缀 ，视图模式配置 -->
<bean
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<!-- 这里的配置我的理解是自动给后面action的方法return的字符串加上前缀和后缀，变成一个 可用的url地址 -->
<property name="prefix" value="/WEB-INF/views/" />
<property name="suffix" value=".jsp" />
</bean>

<!-- 配置文件上传，如果没有使用文件上传可以不用配置，当然如果不配，那么配置文件中也不必引入上传组件包 -->
<!-- <bean id="multipartResolver"
class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
默认编码
<property name="defaultEncoding" value="utf-8" />
文件大小最大值
<property name="maxUploadSize" value="10485760000" />
内存中的最大值
<property name="maxInMemorySize" value="40960" />
</bean> -->

</beans>

8. 配置service层和controller层文件

package com.yc.service;

import com.yc.model.User;

public interface IUserService {
User selectByPrimaryKey(Integer id);
}
/*--------------------------分割线-------------------------*/
package com.yc.service;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import com.yc.dao.UserMapper;
import com.yc.model.User;

@Service
public class UserService implements IUserService {

@Autowired
private UserMapper userMapper;
@Override
public User selectByPrimaryKey(Integer id) {
return userMapper.selectByPrimaryKey(id);
}

}
/*--------------------------分割线-------------------------*/
package com.yc.controller;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

import com.yc.model.User;
import com.yc.service.IUserService;

@Controller
@RequestMapping("/user")
public class UserController {

@Autowired
private IUserService userService;

@RequestMapping("getUser")
@ResponseBody//将返回内容序列化成json格式输出
public User getUser(Integer id){
return userService.selectByPrimaryKey(id);
}
}

9. 测试springMVC

将项目部署到tomcat服务器中，打开游览器，访问

http://localhost:8080/myBatisYc/user/getUser?id=13

，我们会看到游览器中打印了User序列化后的json格式字符串：

{"id":13,"headimg":"http://localhost:8090/dheadImg/1.jpg","isdeleted":0,"name":"psnys","password":"$2a$10$dv4EQjbMwmUpbNB.kFySNe9RRJ1jwAXliK4FotoRLDrdfSAyWkk7C","phonenum":"3412","usertype":"normal","openid":null}

至此，我们的mybatis3.2.6整合spring4和springMVC4配置已完成