idea springmvc+spring+mybatis+maven

【好记性不如烂笔头，回过头来做个记录~】

主要参考：

http://blog.csdn.net/u011403655/article/details/46843331

http://www.cnblogs.com/sweetie/archive/2011/05/17/2049078.html

创建项目

file-new project

一路next.

目录结构

手动创建缺少的文件夹

可以选中文件夹右键，将文件夹作为资源根目录（包）

修改pom.xml导入依赖

<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>me.wangyq.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>

mybatis逆向工程创建mapper接口和xml文件

user表脚本

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

<?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="C:\Users\wangyq\.m2\repository\mysql\mysql-connector-java\5.1.6\mysql-connector-java-5.1.6.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="root">        </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="me.wangyq.ssm.pojo"                            targetProject="src\main\java">            <!-- 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="me.wangyq.ssm.mapper"                         targetProject="src\main\resources">            <!-- 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="me.wangyq.ssm.mapper"                             targetProject="src\main\java">            <!-- 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>

idea右侧maven选项卡，选中mybatis-generator，绿色键运行

不报错的话会生成这些文件

db.properties

在resources/config中创建db.properties

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

SqlMapConfig.xml

在resources/config/mybatis中创建SqlMapConfig.xml

基础配置都整合在spring中，所以这里只写文件框架

<?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

在resource/config/spring中创建springmvc.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"       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="me.wangyq.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>

在resource/config/spring中创建applicationContext-dao.xml、applicationContext-service.xml、applicationContext-transaction.xml

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="me.wangyq.ssm.mapper"/>              <property name="sqlSessionFactoryBeanName" value="sqlSession"/>       </bean></beans>

applicationContext-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="me.wangyq.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(* me.wangyq.ssm.service.*.*(..))"/>       </aop:config></beans>

web.xml文件

<?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

UserService.java

package me.wangyq.ssm.service;import me.wangyq.ssm.pojo.User;import org.springframework.context.annotation.Bean;import org.springframework.stereotype.Component;import java.util.List;/** * Created by wangyq on 2016/5/28. */public interface UserService {    /**     * 查找所有用户     * @return     * @throws Exception     */    List<User> findUser() throws Exception;}

UserServiceImpl.java

package me.wangyq.ssm.service;import me.wangyq.ssm.mapper.UserMapper;import me.wangyq.ssm.pojo.User;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.stereotype.Component;import org.springframework.stereotype.Service;import java.util.List;/** * Created by wangyq on 2016/5/28. */@Servicepublic class UserServiceImpl implements UserService {    @Autowired    private UserMapper userMapper;    public List<User> findUser() throws Exception {        //null表示无条件查找        List<User> users=userMapper.selectByExample(null);        return users;    }}

控制器Controller

UserController.java

package me.wangyq.ssm.controller;import me.wangyq.ssm.pojo.User;import me.wangyq.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 wangyq on 2016/5/28. */@Controller@RequestMapping("/user")public class UserController {    @Autowired    private UserService userService;    @RequestMapping("/findUser")    public ModelAndView findUser() throws Exception{        ModelAndView modelAndView=new ModelAndView();        List<User> users=userService.findUser();        modelAndView.addObject("users",users);        modelAndView.setViewName("findUser");        return modelAndView;    }}

View视图

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: wangyq  Date: 2016/5/28  Time: 17:21  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>find all users</title></head><body><h1>find users</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>

tomcat配置运行

如果Settings中还未配置好tomcat，则选择application server如图添加本地tomcat

部署web application

file-project structure-artifacts

加号添加一个web application: exploded

发布

run-edit configurations

配置完成，右上角绿色键运行

在数据库表中添加一些数据，输入URL地址，不出意外，可得到：

END.

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手搭一次，写一次，加深理解和印象。

spring中的注解千万别写漏了。

各配置文件的作用还有待记牢。