eclipse下maven springMVC 整合 mybatis

参考文档：http://blog.csdn.net/zhshulin/article/details/37956105

 

1.搭建maven工程，具体参见我另一篇博客：http://www.cnblogs.com/kangyun/p/5455108.html

进行到配置web.xml之前那一步就可以了

2.maven导入依赖，我的pom.xml文件的依赖如下所示：

 <dependencies>
     <dependency>
       <groupId>junit</groupId>
       <artifactId>junit</artifactId>
       <version>3.8.1</version>
       <scope>test</scope>
     </dependency>
     <dependency>
         <groupId>org.springframework</groupId>
         <artifactId>spring-aop</artifactId>
         <version>4.2.4.RELEASE</version>
     </dependency>
     <dependency>
         <groupId>org.springframework</groupId>
         <artifactId>spring-context-support</artifactId>
         <version>4.2.4.RELEASE</version>
     </dependency>
     <dependency>
         <groupId>org.springframework</groupId>
         <artifactId>spring-core</artifactId>
         <version>4.2.4.RELEASE</version>
     </dependency>
     <dependency>
         <groupId>org.springframework</groupId>
         <artifactId>spring-oxm</artifactId>
         <version>3.0.4.RELEASE</version>
     </dependency>
     <dependency>
         <groupId>org.springframework</groupId>
         <artifactId>spring-jdbc</artifactId>
         <version>4.2.4.RELEASE</version>
     </dependency>
     <dependency>
         <groupId>org.springframework</groupId>
         <artifactId>spring-test</artifactId>
         <version>4.2.4.RELEASE</version>
     </dependency>
     <dependency>
         <groupId>org.springframework</groupId>
         <artifactId>spring-web</artifactId>
         <version>4.2.4.RELEASE</version>
     </dependency>
     <dependency>
         <groupId>org.springframework</groupId>
         <artifactId>spring-webmvc</artifactId>
         <version>4.2.4.RELEASE</version>
     </dependency>
     <dependency>
         <groupId>org.springframework</groupId>
         <artifactId>spring-tx</artifactId>
         <version>4.2.4.RELEASE</version>
     </dependency>
     <dependency>
         <groupId>org.mybatis</groupId>
         <artifactId>mybatis</artifactId>
         <version>3.3.0</version>
     </dependency>
     <dependency>
         <groupId>org.mybatis</groupId>
         <artifactId>mybatis-spring</artifactId>
         <version>1.2.3</version>
     </dependency>
     <dependency>
         <groupId>javax</groupId>
         <artifactId>javaee-api</artifactId>
         <version>7.0</version>
     </dependency>
     <dependency>
         <groupId>mysql</groupId>
         <artifactId>mysql-connector-java</artifactId>
         <version>5.1.38</version>
     </dependency>
     <dependency>
         <groupId>commons-dbcp</groupId>
         <artifactId>commons-dbcp</artifactId>
         <version>1.4</version>
     </dependency>
     <dependency>
         <groupId>jstl</groupId>
         <artifactId>jstl</artifactId>
         <version>1.2</version>
     </dependency>
     <dependency>
         <groupId>log4j</groupId>
         <artifactId>log4j</artifactId>
         <version>1.2.14</version>
     </dependency>
     <dependency>
         <groupId>com.alibaba</groupId>
         <artifactId>fastjson</artifactId>
         <version>1.2.7</version>
     </dependency>
     <dependency>
         <groupId>org.slf4j</groupId>
         <artifactId>slf4j-api</artifactId>
         <version>1.7.5</version>
     </dependency>
     <dependency>
         <groupId>org.slf4j</groupId>
         <artifactId>slf4j-log4j12</artifactId>
         <version>1.7.5</version>
     </dependency>
     <dependency>
         <groupId>org.codehaus.jackson</groupId>
         <artifactId>jackson-mapper-asl</artifactId>
         <version>1.9.13</version>
     </dependency>
   </dependencies>

pom.xml 依赖部分

2.整合mybatis

首先配置数据库连接配置文件，在src/main/resources下创建文件：jdbc.properties

driver=com.mysql.jdbc.Driver

url=jdbc:mysql://localhost:3306/db_test

username=root

password=

initialSize=0

maxActive=20

maxIdle=20

minIdle=1

maxWait=60000

依然是在该目录下，创建spring-mybatis.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">
     <!-- 自动扫描 -->
     <context:component-scan base-package="com.practice.prac" />
     <!-- 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">
         <property name="dataSource" ref="dataSource" />
         <!-- 自动扫描mapping.xml文件 -->
         <property name="mapperLocations" value="classpath:com/practice/prac/mapping/*.xml"></property>
     </bean>

     <!-- DAO接口所在包名，Spring会自动查找其下的类 -->
     <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
         <property name="basePackage" value="com.practice.prac.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>

 </beans>

spring-mybatis.xml

配置log4j，依然在该目录下，创建log4j.properties

log4j.rootLogger=INFO,Console,File

log4j.appender.Console=org.apache.log4j.ConsoleAppender

log4j.appender.Console.Target=System.out

log4j.appender.Console.layout = org.apache.log4j.PatternLayout

log4j.appender.Console.layout.ConversionPattern=[%c] - %m%n

 

log4j.appender.File = org.apache.log4j.RollingFileAppender

log4j.appender.File.File = logs/ssm.log

log4j.appender.File.MaxFileSize = 10MB

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

以上就是mybatis的全部配置，为了验证，我们现在使用junit测试后台部分。

首先创建数据表：

 

 CREATE TABLE `user_t` (
   `id` int(11) NOT NULL AUTO_INCREMENT,
   `user_name` varchar(40) NOT NULL,
   `password` varchar(255) NOT NULL,
   `age` int(4) NOT NULL,
   PRIMARY KEY (`id`)
 ) ENGINE=InnoDB AUTO_INCREMENT=2 DEFAULT CHARSET=utf8;  

 /*Data for the table `user_t` */  

 insert  into `user_t`(`id`,`user_name`,`password`,`age`) values (1,'测试','sfasgfaf',24);  

sql

 

然后配置mybatis-generator自动创建代码，参考这篇博客：

自动创建dao、mapper和model之后，自己写service接口和serviceImpl：

 package com.practice.prac.service;

 import com.practice.prac.model.User;

 public interface IUserService {
     public User getUserById(int userId);
 }

IUserService

 package com.practice.prac.service.Impl;

 import javax.annotation.Resource;

 import org.springframework.stereotype.Service;

 import com.practice.prac.dao.UserMapper;
 import com.practice.prac.model.User;
 import com.practice.prac.service.IUserService;

 @Service("userService")
 public class UserServiceImpl implements IUserService{

     @Resource
     private UserMapper userMapper;

     @Override
     public User getUserById(int userId) {

         return userMapper.selectByPrimaryKey(userId);
     }

 }

UserServiceImpl

然后在src/test/java目录下创建包：com.practice/prac/service/Impl

在该目录下创建测试文件：

 

 package com.practice.prac.service.Impl;

 import javax.annotation.Resource;

 import org.apache.log4j.Logger;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.springframework.test.context.ContextConfiguration;
 import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

 import com.alibaba.fastjson.JSON;
 import com.practice.prac.model.User;
 import com.practice.prac.service.IUserService;

 @RunWith(SpringJUnit4ClassRunner.class)        //表示继承了SpringJUnit4ClassRunner类
 @ContextConfiguration(locations = {"classpath:spring-mybatis.xml"})

 public class TestMyBatis {
     private static Logger logger = Logger.getLogger(TestMyBatis.class);
     @Resource
     private IUserService userService = null;
     @Test
     public void test1() {
         User user = userService.getUserById(1);
         logger.info(JSON.toJSONString(user));
     }
 }

TestMyBatis

右键测试文件，run as junit 测试成功

 

至此，mybatis整合成功。

3.整合springMVC

在src/main/resources目录下创建文件spring-servlet.xml

 <?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">

     <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.practice.prac.controller" />

     <!-- 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/view/" />
         <property name="suffix" value=".jsp" />
     </bean>
 </beans>

spring-servlet.xml

 

ps：原博客这里有问题，启动后访问不了controller，加了<mvc:annotation-driven />这句后才能使用，其他地方也做了一些修改，主要是去掉了jackson的配置，因为原博是3.x的springmvc框架，我这里是4.x的，因此jackson报错，只好删掉

 

然后配置web.xml

 <?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>Archetype Created Web Application</display-name>
     <!-- Spring和mybatis的配置文件 -->
     <context-param>
         <param-name>contextConfigLocation</param-name>
         <param-value>classpath:spring-mybatis.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-servlet.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>
         <url-pattern>/</url-pattern>
     </servlet-mapping>

 </web-app>

web.xml

这样就整合完成了，下面创建一个jsp页面和一个controller来验证：

 package com.practice.prac.controller;

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

 import org.springframework.ui.ModelMap;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestMethod;
 import org.springframework.web.bind.annotation.RestController;
 import org.springframework.web.servlet.ModelAndView;

 import com.practice.prac.model.User;
 import com.practice.prac.service.IUserService;

 @RestController
 @RequestMapping(value = "show/")
 public class TestController {
     @Resource
     private IUserService userService;

     @RequestMapping(value = "/index", method = RequestMethod.GET)
     public ModelAndView showIndex(HttpServletRequest request,HttpServletResponse response){
         ModelMap modelMap = new ModelMap();
         User user = userService.getUserById(1);
         modelMap.put("user", user);
         return new ModelAndView("/index",modelMap);
     }
 }

TestController

 <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>

 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
 <html>
   <head>
     <title>测试</title>
   </head>

   <body>
     ${user.userName}
   </body>
 </html>

index.jsp

把项目放到tomcat下运行，在浏览器中输入：http://localhost:8080/prac/show/index

整合成功！

最后贴出项目目录：