创建项目
File-New Project
选中左側的Maven，选中右側上方的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会自己主动開始下载所依赖的包，等待其完毕。
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目录（包）
创建完后的项目框架：
改动pom.xml导入依赖包插件
依赖包须要例如以下：
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>
插件须要用到mybatis的逆向project
完整的pom.xml代码清单：
使用mybatis逆向project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:\jar\mysql\mysql-connector-java-5.1.7-bin.jar"/> <context id="testTables" targetRuntime="MyBatis3" > <commentGenerator> <!-- 是否去除自己主动生成的凝视 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="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="com.elin4it.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="com.elin4it.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> <!-- 有些表的字段须要指定java类型 <table schema="" tableName=""> <columnOverride column="" javaType="" /> </table> --> </context> </generatorConfiguration>
点击idea右側的maven选项卡，选择当中的mybatis-generator，点击顶部的绿色button执行
假设没有出错的话，应该会自己主动生成mapper接口文件、xml文件、pojo文件。
db.properties文件
在resources/config中创建db.properties，该文件用来描写叙述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，因为跟spring整合，所以一些基础配置文件都在spring中，在这里该文件里值须要写文件的框架
<?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">
<!--自己主动扫描控制器-->
<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> <!--自己主动扫描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
改动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，仅仅有一个查看全部用户列表的功能
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 {
/**
* 查找全部用户
* @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，假设传入类型为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加入到ModelAndView中
modelAndView.addObject("users",users);
//设置响应的jsp视图
modelAndView.setViewName("findUser");
return modelAndView;
}
}
视图
依据之前写的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>
