Maven+SpringMVC+Mybatis整合入门Demo

1 数据库准备

（1）建立一个名为mytest的数据库

（2）创建表

1. CREATE TABLE `t_user` (
2. `USER_ID` int(11) NOT NULL AUTO_INCREMENT,
3. `USER_NAME` char(30) NOT NULL,
4. `USER_PASSWORD` char(10) NOT NULL,
5. PRIMARY KEY (`USER_ID`),
6. KEY `IDX_NAME` (`USER_NAME`)
7. )ENGINE=InnoDB AUTO_INCREMENT=11 DEFAULT CHARSET=utf8

（3）插入数据

1. INSERT INTO t_user (USER_ID, USER_NAME,USER_PASSWORD) VALUES (1, 'Zhang San', '654321');
2. INSERT INTO t_user (USER_ID, USER_NAME,USER_PASSWORD) VALUES (2, 'Li Si', '123456');

2 参考http://blog.csdn.net/haishu_zheng/article/details/51490299，用第二种方法创建一个名为maven_springmvc_mybatis_demo的工程。

3 文件目录结构如下图所示

4 pom.xml的完整内容为

1. <project xmlns="http://maven.apache.org/POM/4.0.0"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
2. xsi:schemaLocation="http://maven.apache.org/POM/4.0.0http://maven.apache.org/xsd/maven-4.0.0.xsd">
3. <modelVersion>4.0.0</modelVersion>
4. <groupId>maven_springmvc_mybatis_demo</groupId>
5. <artifactId>maven_springmvc_mybatis_demo</artifactId>
6. <version>0.0.1-SNAPSHOT</version>
7. <packaging>war</packaging>
8. <name>maven_springmvc_mybatis_demo</name>
9. <description/>
10. <properties>
11. <!-- spring版本号 -->
12. <spring.version>3.2.9.RELEASE</spring.version>
13. <!-- junit版本号 -->
14. <junit.version>4.10</junit.version>
15. <!-- mybatis版本号 -->
16. <mybatis.version>3.2.8</mybatis.version>
17. </properties>
18. <dependencies>
19. <!-- 添加Spring依赖 -->
20. <dependency>
21. <groupId>org.springframework</groupId>
22. <artifactId>spring-core</artifactId>
23. <version>${spring.version}</version>
24. </dependency>
25. <dependency>
26. <groupId>org.springframework</groupId>
27. <artifactId>spring-webmvc</artifactId>
28. <version>${spring.version}</version>
29. </dependency>
30. <dependency>
31. <groupId>org.springframework</groupId>
32. <artifactId>spring-context</artifactId>
33. <version>${spring.version}</version>
34. </dependency>
35. <dependency>
36. <groupId>org.springframework</groupId>
37. <artifactId>spring-context-support</artifactId>
38. <version>${spring.version}</version>
39. </dependency>
40. <dependency>
41. <groupId>org.springframework</groupId>
42. <artifactId>spring-aop</artifactId>
43. <version>${spring.version}</version>
44. </dependency>
45. <dependency>
46. <groupId>org.springframework</groupId>
47. <artifactId>spring-aspects</artifactId>
48. <version>${spring.version}</version>
49. </dependency>
50. <dependency>
51. <groupId>org.springframework</groupId>
52. <artifactId>spring-tx</artifactId>
53. <version>${spring.version}</version>
54. </dependency>
55. <dependency>
56. <groupId>org.springframework</groupId>
57. <artifactId>spring-jdbc</artifactId>
58. <version>${spring.version}</version>
59. </dependency>
60. <dependency>
61. <groupId>org.springframework</groupId>
62. <artifactId>spring-web</artifactId>
63. <version>${spring.version}</version>
64. </dependency>
65. <!--单元测试依赖 -->
66. <dependency>
67. <groupId>junit</groupId>
68. <artifactId>junit</artifactId>
69. <version>${junit.version}</version>
70. <scope>test</scope>
71. </dependency>
72. <!--spring单元测试依赖 -->
73. <dependency>
74. <groupId>org.springframework</groupId>
75. <artifactId>spring-test</artifactId>
76. <version>${spring.version}</version>
77. <scope>test</scope>
78. </dependency>
79. <!--mybatis依赖 -->
80. <dependency>
81. <groupId>org.mybatis</groupId>
82. <artifactId>mybatis</artifactId>
83. <version>${mybatis.version}</version>
84. </dependency>
85. <!-- mybatis/spring包 -->
86. <dependency>
87. <groupId>org.mybatis</groupId>
88. <artifactId>mybatis-spring</artifactId>
89. <version>1.2.2</version>
90. </dependency>
91. <!-- mysql驱动包 -->
92. <dependency>
93. <groupId>mysql</groupId>
94. <artifactId>mysql-connector-java</artifactId>
95. <version>5.1.34</version>
96. </dependency>
97. <!-- javaee-api包 注意和项目使用的JDK版本对应 -->
98. <dependency>
99. <groupId>javax</groupId>
100. <artifactId>javaee-api</artifactId>
101. <version>7.0</version>
102. <scope>provided</scope>
103. </dependency>
104. <!-- javaee-web-api包 注意和项目使用的JDK版本对应 -->
105. <dependency>
106. <groupId>javax</groupId>
107. <artifactId>javaee-web-api</artifactId>
108. <version>7.0</version>
109. <scope>provided</scope>
110. </dependency>
111. </dependencies>
112. </project>

5 web.xml中的完整内容为

1. <?xml version="1.0" encoding="UTF-8"?>
2. <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1">
3. <display-name>maven_springmvc_mybatis_demo</display-name>
4. <!-- 读取spring配置文件 -->
5. <context-param>
6. <param-name>contextConfigLocation</param-name>
7. <param-value>classpath:application.xml</param-value>
8. </context-param>
9. <listener>
10. <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
11. </listener>
12. <!-- springMVC核心配置 -->
13. <servlet>
14. <servlet-name>dispatcherServlet</servlet-name>
15. <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
16. <init-param>
17. <param-name>contextConfigLocation</param-name>
18. <!--spingMVC的配置路径  -->
19. <param-value>classpath:springmvc/spring-mvc.xml</param-value>
20. </init-param>
21. <load-on-startup>1</load-on-startup>
22. </servlet>
23. <!-- 拦截设置 -->
24. <servlet-mapping>
25. <servlet-name>dispatcherServlet</servlet-name>
26. <url-pattern>/</url-pattern>
27. </servlet-mapping>
28. </web-app>

6 User.Java的完整代码为

1. package com.zheng.model;
2. public class User {
3. private Integer userId;
4. private String userName;
5. private String userPassword;
6. public Integer getUserId() {
7. return userId;
8. }
9. public void setUserId(Integer userId) {
10. this.userId = userId;
11. }
12. public String getUserName() {
13. return userName;
14. }
15. public void setUserName(String userName) {
16. this.userName = userName;
17. }
18. public String getUserPassword() {
19. return userPassword;
20. }
21. public void setUserPassword(String userPassword) {
22. this.userPassword = userPassword;
23. }
24. }

7 UserDao.java的完整代码为

1. package com.zheng.dao;
2. import com.zheng.model.User;
3. public interface UserDao {
4. public User selectUserById(Integer userId);
5. }

8 UserService.java的完整代码为

1. package com.zheng.service;
2. import com.zheng.model.User;
3. public interface UserService {
4. User selectUserById(Integer userId);
5. }

9 UserServiceImpl.java的完整代码为

1. package com.zheng.service;
2. import org.springframework.beans.factory.annotation.Autowired;
3. import org.springframework.stereotype.Service;
4. import com.zheng.dao.UserDao;
5. import com.zheng.model.User;
6. import com.zheng.service.UserService;
7. @Service
8. public class UserServiceImpl implements UserService {
9. @Autowired
10. private UserDao userDao;
11. public User selectUserById(Integer userId) {
12. return userDao.selectUserById(userId);
13. }
14. }

10 UserController.java的完整代码为

1. package com.zheng.controller;
2. import javax.annotation.Resource;
3. import org.springframework.stereotype.Controller;
4. import org.springframework.web.bind.annotation.RequestMapping;
5. import org.springframework.web.servlet.ModelAndView;
6. import com.zheng.model.User;
7. import com.zheng.service.UserService;
8. @Controller
9. public class UserController {
10. @Resource
11. private UserService userService;
12. @RequestMapping("/showUserInfo")
13. public ModelAndView getIndex(){
14. ModelAndView mav = new ModelAndView("index");
15. User user = userService.selectUserById(1);
16. mav.addObject("user", user);
17. return mav;
18. }
19. }

11 User2Mapper.xml的完整代码为

1. <?xml version="1.0" encoding="UTF-8"?>
2. <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
3. "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
4. <mapper namespace="com.zheng.dao.UserDao">
5. <!--设置model类和数据库中表的字段一一对应，注意数据库字段和model类中的字段名称不致，此处一定要！-->
6. <resultMap id="BaseResultMap" type="com.zheng.model.User">
7. <id column="USER_ID" property="userId" jdbcType="INTEGER" />
8. <result column="USER_NAME" property="userName" jdbcType="CHAR" />
9. <result column="USER_PASSWORD" property="userPassword" jdbcType="CHAR" />
10. </resultMap>
11. <!-- 查询单条记录 -->
12. <select id="selectUserById" parameterType="int" resultMap="BaseResultMap">
13. SELECT * FROM t_user WHERE USER_ID = #{userId}
14. </select>
15. </mapper>

12 mybatis-config.xml的完整代码为

1. <?xml version="1.0" encoding="UTF-8"?>
2. <!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
3. "http://mybatis.org/dtd/mybatis-3-config.dtd">
4. <configuration>
5. </configuration>

13 jdbc.properties的完整代码为

1. jdbc_driverClassName=com.mysql.jdbc.Driver
2. jdbc_url=jdbc:mysql://localhost:3306/mytest
3. jdbc_username=root
4. jdbc_password=root

14 spring-mvc.xml的完整代码为

1. <?xml version="1.0" encoding="UTF-8"?>
2. <beans xmlns="http://www.springframework.org/schema/beans"
3. xmlns:p="http://www.springframework.org/schema/p"
4. xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
5. xmlns:context="http://www.springframework.org/schema/context"
6. xmlns:mvc="http://www.springframework.org/schema/mvc"
7. xsi:schemaLocation="
8. http://www.springframework.org/schema/beans
9. http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
10. http://www.springframework.org/schema/context
11. http://www.springframework.org/schema/context/spring-context-3.2.xsd
12. http://www.springframework.org/schema/mvc
13. http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd">
14. <mvc:annotation-driven />
15. <!-- 扫描controller（controller层注入） -->
16. <context:component-scan base-package="com.zheng.controller"/>
17. <!-- 对模型视图添加前后缀 -->
18. <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"
19. p:prefix="/WEB-INF/view/" p:suffix=".jsp"/>
20. </beans>

15 application.xml的完整代码为

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:context="http://www.springframework.org/schema/context"
4. xmlns:aop="http://www.springframework.org/schema/aop"
5. xsi:schemaLocation="
6. http://www.springframework.org/schema/beans
7. http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
8. http://www.springframework.org/schema/aop
9. http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
10. http://www.springframework.org/schema/context
11. http://www.springframework.org/schema/context/spring-context-3.0.xsd">
12. <!-- 引入jdbc配置文件 -->
13. <bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
14. <property name="locations">
15. <list>
16. <value>classpath:properties/*.properties</value>
17. <!--要是有多个配置文件，只需在这里继续添加即可 -->
18. </list>
19. </property>
20. </bean>
21. <!-- 配置数据源 -->
22. <bean id="dataSource"
23. class="org.springframework.jdbc.datasource.DriverManagerDataSource">
24. <!-- 不使用properties来配置 -->
25. <!-- <property name="driverClassName" value="com.mysql.jdbc.Driver" />
26. <property name="url" value="jdbc:mysql://localhost:3306/learning" />
27. <property name="username" value="root" />
28. <property name="password" value="christmas258@" /> -->
29. <!-- 使用properties来配置 -->
30. <property name="driverClassName">
31. <value>${jdbc_driverClassName}</value>
32. </property>
33. <property name="url">
34. <value>${jdbc_url}</value>
35. </property>
36. <property name="username">
37. <value>${jdbc_username}</value>
38. </property>
39. <property name="password">
40. <value>${jdbc_password}</value>
41. </property>
42. </bean>
43. <!-- 自动扫描了所有的XxxxMapper.xml对应的mapper接口文件，这样就不用一个一个手动配置Mpper的映射了，只要Mapper接口类和Mapper映射文件对应起来就可以了。 -->
44. <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
45. <property name="basePackage"
46. value="com.zheng.dao" />
47. </bean>
48. <!-- 配置Mybatis的文件 ，mapperLocations配置**Mapper.xml文件位置，configLocation配置mybatis-config文件位置-->
49. <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
50. <property name="dataSource" ref="dataSource" />
51. <property name="mapperLocations" value="classpath:mapper/*.xml"/>
52. <property name="configLocation" value="classpath:mybatis/mybatis-config.xml" />
53. <!-- <property name="typeAliasesPackage" value="com.tiantian.ckeditor.model"
54. /> -->
55. </bean>
56. <!-- 自动扫描注解的bean -->
57. <context:component-scan base-package="com.zheng.service" />
58. </beans>

16 index.jsp中的完整代码为：

1. <%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
2. <html>
3. <body>
4. <h2>User Info</h2>
5. 用户名： ${user.userName}<br>
6. 密码： ${user.userPassword}<br>
7. </body>
8. </html>

17 将项目添加进Tomcat 7中并运行

在浏览器中输入

http://localhost:8080/maven_springmvc_mybatis_demo/showUserInfo

显示结果为

18 源码下载地址

CSDN：http://download.csdn.net/detail/haishu_zheng/9534859

Github：https://github.com/zhenghaishu/maven_springmvc_mybatis_demo