Idea SpringMVC+Spring+MyBatis+Maven整合

创建项目

File-New Project

选中左侧的Maven，选中右侧上方的Create from archetype，然后选中下方列表中的webapp，然后点击Next

在GroupId和ArtifactId中填入指定内容，点击Next

直接点Next

输入项目名称，Finish

Idea会自动开始下载所依赖的包，等待其完成。

项目结构

项目刚建好的时候是没有这些文件的，所以自己手动创建缺少的文件夹（包）

创建完后的项目框架：

修改pom.xml导入依赖包插件

依赖包需要如下：

spring framework
aspectj事务
c3p0数据源
servlet/jsp api
junit4
mybatis
mybatis spring整合
mysql driver

jstl

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>com.elin4it.ssm</groupId>
    <artifactId>ssm</artifactId>
    <packaging>war</packaging>
    <version>1.0-SNAPSHOT</version>
    <name>ssm Maven Webapp</name>
    <url>http://maven.apache.org</url>
    <build>
        <finalName>ssm</finalName>
        <plugins>
            <!--mybatis 逆向工程插件-->
            <plugin>
                <groupId>org.mybatis.generator</groupId>
                <artifactId>mybatis-generator-maven-plugin</artifactId>
                <version>1.3.2</version>
                <configuration>
                    <verbose>true</verbose>
                    <overwrite>true</overwrite>
                </configuration>
            </plugin>
        </plugins>
    </build>
    <properties>
        <spring.version>4.1.1.RELEASE</spring.version>
    </properties>
    <dependencies>
        <!-- springframe start -->
        <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>
        <!-- springframe end -->

        <!--aspectj start-->
        <dependency>
            <groupId>org.aspectj</groupId>
            <artifactId>aspectjweaver</artifactId>
            <version>1.8.6</version>
        </dependency>

        <dependency>
            <groupId>org.aspectj</groupId>
            <artifactId>aspectjrt</artifactId>
            <version>1.8.6</version>
        </dependency>
        <!--aspectj end-->

        <!--c3p0-->
        <dependency>
            <groupId>com.mchange</groupId>
            <artifactId>c3p0</artifactId>
            <version>0.9.5.1</version>
        </dependency>

        <!--servlet/jsp api start-->
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>servlet-api</artifactId>
            <version>2.5</version>
        </dependency>

        <dependency>
            <groupId>javax.servlet.jsp</groupId>
            <artifactId>jsp-api</artifactId>
            <version>2.1</version>
            <scope>provided</scope>
        </dependency>
        <!--servlet/jsp api end-->

        <!--junit4-->
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.11</version>
            <scope>test</scope>
        </dependency>

        <!--mybatis-->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>3.3.0</version>
        </dependency>
        <!--mybatis spring整合-->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
            <version>1.2.3</version>
        </dependency>

        <!--mysql driver-->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.6</version>
        </dependency>

        <!--jstl-->
        <dependency>
            <groupId>jstl</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
        </dependency>

    </dependencies>
</project>

插件需要用到mybatis的逆向工程

完整的pom.xml代码清单：

使用mybatis逆向工程创建mapper接口和xml文件

user表结构

DROP TABLE IF EXISTS `user`;
/*!40101 SET @saved_cs_client     = @@character_set_client */;
/*!40101 SET character_set_client = utf8 */;
CREATE TABLE `user` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `username` varchar(32) NOT NULL COMMENT '用户名称',
  `birthday` date DEFAULT NULL COMMENT '生日',
  `sex` char(1) DEFAULT NULL COMMENT '性别',
  `address` varchar(256) DEFAULT NULL COMMENT '地址',
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=27 DEFAULT CHARSET=utf8;

在main/resources中创建generatorConfig.xml文件

generatorConfig.xml代码清单

<?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>
    <classPathEntry location="F:jarmysqlmysql-connector-java-5.1.7-bin.jar"/>
    <context id="testTables" targetRuntime="MyBatis3" >
        <commentGenerator>
            <!-- 是否去除自动生成的注释 true：是 ： false:否 -->
            <property name="suppressAllComments" value="true" />
        </commentGenerator>
        <!--数据库连接的信息：驱动类、连接地址、用户名、密码 -->
        <!--<jdbcConnection driverClass="${jdbc.driver}"-->
                        <!--connectionURL="${jdbc.url}"-->
                        <!--userId="${jdbc.username}"-->
                        <!--password="${jdbc.password}">-->
        <!--</jdbcConnection>-->
        <jdbcConnection driverClass="com.mysql.jdbc.Driver"
            connectionURL="jdbc:mysql://127.0.0.1:3306/mybatis?characterEncoding=UTF-8"
            userId="root"
            password="">
        </jdbcConnection>

        <!-- 默认false，把JDBC DECIMAL 和 NUMERIC 类型解析为 Integer，为 true时把JDBC DECIMAL 和
            NUMERIC 类型解析为java.math.BigDecimal -->
        <javaTypeResolver>
            <property name="forceBigDecimals" value="false" />
        </javaTypeResolver>

        <!-- targetProject:生成PO类的位置 -->
        <javaModelGenerator targetPackage="com.elin4it.ssm.pojo"
                            targetProject="srcmainjava">
            <!-- enableSubPackages:是否让schema作为包的后缀 -->
            <property name="enableSubPackages" value="false" />
            <!-- 从数据库返回的值被清理前后的空格 -->
            <property name="trimStrings" value="true" />
        </javaModelGenerator>
        <!-- targetProject:mapper映射文件生成的位置 -->
        <sqlMapGenerator targetPackage="com.elin4it.ssm.mapper"
                         targetProject="srcmain
esources">
            <!-- enableSubPackages:是否让schema作为包的后缀 -->
            <property name="enableSubPackages" value="false" />
        </sqlMapGenerator>
        <!-- targetPackage：mapper接口生成的位置 -->
        <javaClientGenerator type="XMLMAPPER"
                             targetPackage="com.elin4it.ssm.mapper"
                             targetProject="srcmainjava">
            <!-- enableSubPackages:是否让schema作为包的后缀 -->
            <property name="enableSubPackages" value="false" />
        </javaClientGenerator>
        <!-- 指定数据库表 -->
        <table tableName="user"></table>

        <!-- 有些表的字段需要指定java类型
         <table schema="" tableName="">
            <columnOverride column="" javaType="" />
        </table> -->
    </context>
</generatorConfiguration>

点击idea右侧的maven选项卡，选择其中的mybatis-generator，点击顶部的绿色按钮运行

如果没有出错的话，应该会自动生成mapper接口文件、xml文件、pojo文件。

db.properties文件

在resources/config中创建db.properties，该文件用来描述mysql连接信息

jdbc.driver = com.mysql.jdbc.Driver
jdbc.url = jdbc:mysql://127.0.0.1:3306/mybatis?characterEncoding=UTF-8
jdbc.username = root
jdbc.password =

SqlMapConfig文件

在resources/config/mybatis中创建SqlMapConfig.xml文件，该文件为Mybatis的配置文件，由于跟spring整合，所以一些基础配置文件都在spring中，在这里该文件中值需要写文件的框架

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

<configuration>

</configuration>

SpringMVC配置文件

在resources/config/spring中创建springmvc.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: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.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd">

       <!--自动扫描控制器-->
       <context:component-scan base-package="com.elin4it.ssm.controller"/>
       <!--视图渲染-->
       <bean id="internalResourceViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
              <property name="prefix" value="/WEB-INF/views/"/>
              <property name="suffix" value=".jsp"/>
       </bean>
       <!--控制器映射器和控制器适配器-->
       <mvc:annotation-driven></mvc:annotation-driven>
</beans>

Spring IOC注入和事件控制

在resources/config/spring中创建applicationContext-dao.xml、application-service.xml、applicationContext-transaction.xml文件

applicationContext-dao.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:context="http://www.springframework.org/schema/context"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">


       <!--获取数据库配置文件-->
       <context:property-placeholder location="classpath:config/db.properties"/>


       <!--设置数据源c3p0-->
       <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource" destroy-method="close">
              <property name="driverClass" value="${jdbc.driver}"/>
              <property name="jdbcUrl" value="${jdbc.url}"/>
              <property name="user" value="${jdbc.username}"/>
              <property name="password" value="${jdbc.password}"/>
              <property name="maxPoolSize" value="50"/>
              <property name="minPoolSize" value="2"/>
              <property name="maxIdleTime" value="60"/>
       </bean>

       <!--sqlsessionFactory bean-->
       <bean id="sqlSession" class="org.mybatis.spring.SqlSessionFactoryBean">
              <property name="configLocation" value="classpath:config/mybatis/SqlMapConfig.xml"/>
              <property name="dataSource" ref="dataSource"/>
       </bean>

       <!--自动扫描mapper接口，并注入sqlsession-->
       <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
              <property name="basePackage" value="com.elin4it.ssm.mapper"/>
              <property name="sqlSessionFactoryBeanName" value="sqlSession"/>
       </bean>

</beans>

application-service.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:context="http://www.springframework.org/schema/context"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">

       <!--扫描service-->
       <context:component-scan base-package="com.elin4it.ssm.service"/>
</beans>

applicationContext-transaction.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: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.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd">


       <bean id="dataSourceTransactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
              <property name="dataSource" ref="dataSource"/>
       </bean>

       <tx:advice id="txAdvice" transaction-manager="dataSourceTransactionManager">
              <tx:attributes>
                     <tx:method name="find*" propagation="REQUIRED"/>
                     <tx:method name="update*" propagation="REQUIRED"/>
                     <tx:method name="delete*" propagation="REQUIRED"/>
                     <tx:method name="add*" propagation="REQUIRED"/>
              </tx:attributes>
       </tx:advice>

       <aop:config>
              <aop:advisor advice-ref="txAdvice" pointcut="execution(* cn.elinzhou.ixxs.service.*.*(..))"/>
       </aop:config>
</beans>

web.xml文件

修改web.xml文件内容

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
         version="3.1">

    <!--设置spring 配置文件的位置-->
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath*:config/spring/applicationContext-*.xml</param-value>

    </context-param>
    <!--配置spring listener-->
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>


    <!--解决POST乱码问题-->
    <filter>
        <filter-name>CharacterEncodingFilter</filter-name>
        <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
        <init-param>
            <param-name>encoding</param-name>
            <param-value>utf-8</param-value>
        </init-param>
    </filter>
    <filter-mapping>
        <filter-name>CharacterEncodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

    <!--springmvc前端控制器配置-->
    <servlet>
        <servlet-name>dispatcherServlet</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath*:config/spring/springmvc.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>

    <servlet-mapping>
        <servlet-name>dispatcherServlet</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>

</web-app>

Service接口与实现

创建一个简单的service，只有一个查看所有用户列表的功能

UserService.java

package com.elin4it.ssm.service;

import com.elin4it.ssm.pojo.User;

import java.util.List;

/**
 * Created by 烽 on 2015/7/11.
 */
public interface UserService {

    /**
     * 查找所有用户
     * @return
     * @throws Exception
     */
    List<User> findUser()throws Exception;
}

实现类UserServiceImpl.java

package com.elin4it.ssm.service;

import com.elin4it.ssm.mapper.UserMapper;
import com.elin4it.ssm.pojo.User;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;

/**
 * Created by 烽 on 2015/7/11.
 */
@Service
public class UserServiceImpl implements UserService {

    //User接口
    @Autowired
    private UserMapper userMapper;

    public List<User> findUser() throws Exception {
        //调用mapper类中的selectByExample方法，如果传入类型为null，则表示无条件查找
        List<User> users = userMapper.selectByExample(null);

        return users;
    }
}

Controller

package com.elin4it.ssm.controller;

import com.elin4it.ssm.pojo.User;
import com.elin4it.ssm.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;

import java.util.List;

/**
 * Created by 烽 on 2015/7/11.
 */
@Controller
@RequestMapping("/user")
public class UserController {

    //service类
    @Autowired
    private UserService userService;

    /**
     * 查找所用用户控制器方法
     * @return
     * @throws Exception
     */
    @RequestMapping("/findUser")
    public ModelAndView findUser()throws Exception{
        ModelAndView modelAndView = new ModelAndView();

        //调用service方法得到用户列表
        List<User> users = userService.findUser();
        //将得到的用户列表内容添加到ModelAndView中
        modelAndView.addObject("users",users);
        //设置响应的jsp视图
        modelAndView.setViewName("findUser");

        return modelAndView;
    }
}

视图

根据之前写的controller，返回的视图为findUser，所以在/WEB-INF/views中创建findUser.jsp文件，用来显示查询出来的结果

<%--
  Created by IntelliJ IDEA.
  User: 烽
  Date: 2015/7/11
  Time: 19:47
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<html>
<head>
    <title></title>
</head>
<body>
<h1>findUser</h1>
<table>
  <c:forEach items="${users}" var="u">
    <tr>
      <td>${u.id}</td>
      <td>${u.username}</td>
      <td>${u.birthday}</td>
    </tr>
  </c:forEach>

</table>
</body>
</html>