spring4.1.3+springmvc+mybatis3.2.1整合

注意：这里使用了mybatis3.2.1版本，刚开始用了3.4.1的版本，会报一个很奇怪的错(java.lang.AbstractMethodError: org.mybatis.spring.transaction.SpringManagedTransaction.getTimeout()Ljava/lang/Integer;)，换了这个包就好了

1. 所需包，spring的jar包，mybatis的jar包，spring-mybatis.jar，数据库连接的mysql-connection.jar，日志的log4j.jar（33个包，如果用到了jstl还需要加入jstl包，36个）

2. 在web.xml中添加spring的监听，以及配置springmvc的核心文件。

<?xml version="1.0" encoding="UTF-8"?>

<web-app version="2.5" 

xmlns="http://java.sun.com/xml/ns/javaee" 

xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 

xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 

http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">

  <display-name></display-name>

  <!-- spring文件的监听 -->

   <listener>

        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>

    </listener>

  <!-- spring 加载配置文件的路径 -->

  <context-param>

    <param-name>contextConfigLocation</param-name>

    <param-value>classpath:beans.xml</param-value>

  </context-param>  

  <!-- 配置springmvc核心控制器 -->

   <servlet>

        <servlet-name>spring</servlet-name>

        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>

        <load-on-startup>1</load-on-startup>

   </servlet>

    <servlet-mapping>

        <servlet-name>spring</servlet-name>

        <url-pattern>/</url-pattern>

    </servlet-mapping>

    <!-- 加个过滤器，让所有请求页面的编码方式都为utf-8 -->

<filter>

    <filter-name>CharEncodingFilter</filter-name>

    <filter-class>com.sram.filter.CharEncodingFilter</filter-class>

    <init-param>

     <param-name>encoding</param-name>

     <param-value>UTF-8</param-value>

    </init-param>

  </filter>

  

  <filter-mapping>

    <filter-name>CharEncodingFilter</filter-name>

    <!-- /*表示所有的请求都过滤 -->

    <url-pattern>/*</url-pattern>

  </filter-mapping>

  

  <welcome-file-list>

    <welcome-file>index.jsp</welcome-file>

  </welcome-file-list>

</web-app>

至此，web.xml文件配置结束

1. 在WEB-INF目录添加spring-servlet.xml（ps:web.xml中配置的servlet核心名字叫spring，它就会去找叫spring-servlet.xml的springmvc配置文件）

配置如下：

<?xml version="1.0" encoding="UTF-8"?>

<beans xmlns="http://www.springframework.org/schema/beans" 

xmlns:mvc="http://www.springframework.org/schema/mvc"

    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"

    xsi:schemaLocation="

        http://www.springframework.org/schema/beans 

        http://www.springframework.org/schema/beans/spring-beans-3.0.xsd

        http://www.springframework.org/schema/context 

        http://www.springframework.org/schema/context/spring-context-3.0.xsd

        http://www.springframework.org/schema/mvc

        http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">

 

<!-- 注解探测器 -->

<context:component-scan base-package="com.sram.controller"/>

<!-- 打开mvc驱动 -->

<mvc:annotation-driven />


    <bean 

      class="org.springframework.web.servlet.view.InternalResourceViewResolver">

    <property name="prefix" value="/WEB-INF/jsp/"/>

    <property name="suffix" value=".jsp"/>

</bean>

 

</beans>

1. 在src目录下添加spring的配置文件，beans.xml，内容如下：

<?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:context="http://www.springframework.org/schema/context"

     xmlns:aop="http://www.springframework.org/schema/aop"

     xmlns:tx="http://www.springframework.org/schema/tx"

     xsi:schemaLocation="http://www.springframework.org/schema/beans

         http://www.springframework.org/schema/beans/spring-beans-3.0.xsd

         http://www.springframework.org/schema/context

         http://www.springframework.org/schema/context/spring-context-3.0.xsd

         http://www.springframework.org/schema/aop 

         http://www.springframework.org/schema/aop/spring-aop-3.0.xsd 

         http://www.springframework.org/schema/tx 

         http://www.springframework.org/schema/tx/spring-tx-3.0.xsd ">

 

<!-- 打开spring的Annotation -->

<context:annotation-config/>


<!-- 设置spring去哪些包中找Annotation -->

    <context:component-scan base-package="com.sram"/>

    

    

    <!-- 创建数据库连接 -->

    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">

    <property name="driverClassName" value="${jdbc.driverClassName}"/>

    <property name="url" value="${jdbc.url}"/>

    <property name="username" value="${jdbc.username}"/>

    <property name="password" value="${jdbc.password}"/>

</bean>


<!-- 引入src目录下的jdbc.properties文件 -->

    <context:property-placeholder location="classpath:jdbc.properties"/>

    

<!-- 创建spring的SqlSessionFactory -->

<bean id="sqlSessionFactory" 

class="org.mybatis.spring.SqlSessionFactoryBean">

    <property name="dataSource" ref="dataSource"/>

     

    <!-- 加载实体类映射文件 -->

    <property name="mapperLocations" value="classpath:com/sram/model/*.xml"></property>

<!--  加载实体类对象 -->

<property name="typeAliasesPackage" value="com.sram.model"></property>

 </bean>

 

<!-- 配置spring的事务处理 -->

 <!-- 创建 事务管理器 -->

 <bean id="txManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">

    <property name="dataSource" ref="dataSource"></property>

 </bean>

 <!-- 配置aop,spring是通过aop进行事务管理 -->

 <aop:config>

    <!-- 设置在哪些方法中打开事务 -->

    <aop:pointcut id="allMethods" 

            expression="execution(* com.sram.dao.*.*(..))"/>

    <!-- 加入事务控制的具体位置 -->

    <aop:advisor advice-ref="txAdvice" pointcut-ref="allMethods"/>

  </aop:config>


  <!-- 配置哪些方法要加入事务控制 -->

  <tx:advice id="txAdvice" transaction-manager="txManager">

    <tx:attributes>

     <!-- 所有方法加入事务 -->

     <tx:method name="*" propagation="REQUIRED"/>

    </tx:attributes>

  </tx:advice>

 

</beans>

1. 数据源文件jdbc.properties内容如下

jdbc.driverClassName=com.mysql.jdbc.Driver

jdbc.url=jdbc:mysql://localhost:3306/mybatis

jdbc.username=root

jdbc.password=root

1. 日志文件log4j.properties

log4j.rootLogger=INFO, stdout  

#log4j.logger.test=info  

#log4j.logger.org.apache.jasper = DEBUG  

#log4j.logger.org.apache.catalina.startup.TldConfig = DEBUG  

#log4j.logger.org.apache.catalina.session.ManagerBase = DEBUG  

#log4j.logger.com.fiscal = DEBUG  

#log4j.logger.com.system = DEBUG  

log4j.logger.com.ibatis = DEBUG  

log4j.logger.com.ibatis.common.jdbc.SimpleDataSource = DEBUG  

log4j.logger.com.ibatis.common.jdbc.ScriptRunner = DEBUG  

log4j.logger.com.ibatis.sqlmap.engine.impl.SqlMapClientDelegate = DEBUG  

log4j.logger.java.sql.Connection = DEBUG  

log4j.logger.java.sql.Statement = DEBUG  

log4j.logger.java.sql.PreparedStatement = DEBUG 

log4j.logger.java.sql.ResultSet = INFO  

log4j.appender.stdout=org.apache.log4j.ConsoleAppender   

#log4j.appender.fileout=org.apache.log4j.RollingFileAppender  

#log4j.appender.fileout.File=e:/log/ibatis.log   

#log4j.appender.fileout.MaxFileSize=10000KB   

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

#log4j.appender.stdout.layout.ConversionPattern=[%-5p] %d{yyyy-MM-dd HH:mm:ss} :%m%n   

#log4j.appender.fileout.layout=org.apache.log4j.PatternLayout   

#log4j.appender.fileout.layout.ConversionPattern=[%-5p]_%d{yyyy-MM-dd HH:mm:ss} :%m%n  

#log4j.appender.stdout.layout=org.apache.log4j.SimpleLayout   

# log4j.logger.org=info 

配置文件结束 jdbc.propertise和log4j.propertise放在src根目录下

1. 下面写测试代码

• UserController.java

package com.tt.controller;



/**

 * Created by lx7ly on 9/17/16.

 */



import javax.annotation.Resource;



import com.tt.dao.IUserDao;

import com.tt.model.User;

import org.springframework.stereotype.Controller;

import org.springframework.ui.Model;

import org.springframework.web.bind.annotation.RequestMapping;

import org.springframework.web.bind.annotation.RequestMethod;



@Controller("userController")

@RequestMapping("user")

public class UserController {



    private IUserDao userDao;



    @Resource

    public void setUserDao(IUserDao userDao) {

        this.userDao = userDao;

    }



    public UserController() {



    }



    @RequestMapping(value = "/users", method = RequestMethod.GET)

    public String list(Model model) {

        User u = userDao.loadById(1);

        System.out.println(u);

        //model.addAttribute("users", users);

        return "list";

    }

}

• CharEncodingFilter.java

package com.tt.filter;



import javax.servlet.*;

import java.io.IOException;



/**

 * Created by lx7ly on 9/17/16.

 */

public class CharEncodingFilter implements Filter{

    private String encoding;



   public void destroy() {



   }



   public void doFilter(ServletRequest request, ServletResponse response,

         FilterChain chain) throws IOException, ServletException {



      request.setCharacterEncoding(encoding);

      //response.setCharacterEncoding(encoding);

      chain.doFilter(request, response);

   }



   public void init(FilterConfig config) throws ServletException {



      //config中保存这过滤器的配置信息，如果在web.xml中配置的过滤器编码不是utf8，则改成utf8；

      String e = config.getInitParameter("encoding");

      if(e == null || e.equals("")) {

         encoding = "UTF-8";

      }

      else {

         encoding = e;

      }

   }

}

• User.java

package com.tt.model;



/**

 * Created by lx7ly on 9/17/16.

 */

public class User {

    private int id;

    private String name;

    private String password;



    public User() {

    }



    public User(String name, String password) {

        super();

        this.name = name;

        this.password = password;

    }





    public User(int id, String name, String password) {

        super();

        this.id = id;

        this.name = name;

        this.password = password;

    }



    public String getName() {

        return name;

    }



    public void setName(String name) {

        this.name = name;

    }



    public String getPassword() {

        return password;

    }



    public void setPassword(String password) {

        this.password = password;

    }



    public int getId() {

        return id;

    }



    public void setId(int id) {

        this.id = id;

    }



    @Override

    public String toString() {

        return "User [id=" + id + ", name=" + name + ", password="

                + password + "]";

    }

}

• User.xml

<?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.tt.model.User">



   <select id="load" parameterType="int" resultType="com.tt.model.User">

      select * from t_user where id = #{id}

   </select>



</mapper>

• UserException.java

package com.tt.model;



/**

 * Created by lx7ly on 9/17/16.

 */

public class UserException extends RuntimeException {

    public UserException() {

        super();



    }



    public UserException(String message, Throwable cause,

                         boolean enableSuppression, boolean writableStackTrace) {

        super(message, cause, enableSuppression, writableStackTrace);



    }



    public UserException(String message, Throwable cause) {

        super(message, cause);



    }



    public UserException(String message) {

        super(message);



    }



    public UserException(Throwable cause) {

        super(cause);



    }

}

• IUserDao.java

package com.tt.dao;



import com.tt.model.User;



/**

 * Created by lx7ly on 9/17/16.

 */

public interface IUserDao {

    void add(User user);



    void delete(int id);



    void update(User user);



    User loadById(int id);



    User loadByName(String username);



    User login(String username, String password);

}

• UserDao.java

package com.tt.dao;



import com.tt.model.User;

import com.tt.model.UserException;

import org.apache.ibatis.session.SqlSession;

import org.apache.ibatis.session.SqlSessionFactory;

import org.springframework.stereotype.Repository;



import javax.annotation.Resource;



/**

 * Created by lx7ly on 9/17/16.

 */



@Repository("userDao")

public class UserDao implements IUserDao{

    private SqlSessionFactory sqlSessionFactory = null;



   @Resource

   public void setSqlSessionFactory(SqlSessionFactory sqlSessionFactory) {

      this.sqlSessionFactory = sqlSessionFactory;

   }



   public void add(User user) {



   }



   public void delete(int id) {



   }



   public void update(User user) {



   }



   @Override

   public User loadById(int id) {

      SqlSession sqlSession = null;

      User u = null;

      try{

         sqlSession = sqlSessionFactory.openSession();

         u = sqlSession.selectOne("com.tt.model.User.load", id);

      }finally{

         assert sqlSession != null;

         sqlSession.close();

      }

      return u;

   }



   public User loadByName(String username) {



      return null;

   }



   public User login(String username, String password) {

      User u = this.loadByName(username);

      if(u == null){

         throw new UserException("用户不存在");

      }else if(!password.trim().equals(u.getPassword())){

         throw new UserException("密码不对！！");

      }

      return u;

   }

}

• IUserService.java

package com.tt.service;



import com.tt.model.User;



/**

 * Created by lx7ly on 9/17/16.

 */

public interface IUserService {



    User loadById(int id);

}

+ UserService.java



package com.tt.service;



import com.tt.dao.IUserDao;

import com.tt.model.User;

import org.springframework.stereotype.Service;



import javax.annotation.Resource;



/**

 * Created by lx7ly on 9/17/16.

 */

@Service("userService")

public class UserService implements IUserService{





    private IUserDao userDao;



    @Resource

    public void setUserDao(IUserDao userDao) {

        this.userDao = userDao;

    }



    @Override

    public User loadById(int id) {

        return userDao.loadById(1);

    }

}

• UserServiceTest.java

package com.tt.service;



import org.junit.Test;

import org.junit.runner.RunWith;

import org.springframework.test.context.ContextConfiguration;

import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;



import javax.annotation.Resource;



/**

 * Created by lx7ly on 9/17/16.

 */

@RunWith(SpringJUnit4ClassRunner.class)       //表示继承了SpringJUnit4ClassRunner类

@ContextConfiguration(locations = {"classpath:spring.xml"})

public class UserServiceTest {



    private IUserService userService;



    @Test

    public void testSetUserDao() throws Exception {



    }



    @Test

    public void testLoadById() throws Exception {

        System.out.println(userService.loadById(1));

    }



    @Resource

    public void setUserService(IUserService userService) {

        this.userService = userService;

    }



}

• list.jsp

<%--

  Created by IntelliJ IDEA.

  User: lx7ly

  Date: 9/17/16

  Time: 5:34 PM

  To change this template use File | Settings | File Templates.

--%>

<%@ page contentType="text/html;charset=UTF-8" language="java" %>

<html>

  <head>

    <title>list.jsp</title>

  </head>

  <body>

    helloworld !! this is list.jsp

  </body>

</html>

• ssm.sql

create database ssm;



use ssm;



create table t_user (id int primary key auto_increment, name varchar(20), password varchar(20));



insert into t_user(name, password) values ('root', 'root');

insert into t_user(name, password) values ('zhangsan', '123');

insert into t_user(name, password) values ('李四', '123');