struts2+spring+mybatis整合小案例

最近学习ssm框架,模仿别人做了一个小案例

当然途中也遇到了蛮多的问题.借此机会.记录一下自己的过程

struts2+spring+mybatis的整合过程

1.说明:

个人采用的是deepin操作系统(深度linux)+Intellij Idea(相对与myeclipse我还是更喜欢idea 可能因为更智能)+tomcat7.

当然在windows下没什么不同,具体操作过程很相似.

2.案例环境搭建

注:项目结构图

2.1准备工作

- 新建idea项目
- 在web/web-inf下新建classes目录和lib
- 导入jar包到lib目录下
- 为module添加dependences
- 具体操作步骤参见我的博客http://blog.csdn.net/jsu_9207/article/details/51271799

2.2 配置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">

<!--spring 配置-->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:ApplicationContext.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>

<!--struts 配置-->
<filter>
<filter-name>struts2</filter-name>
<filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>

2.3 实体类编写

public class User {
private int id;
private String name;
private int age;
//省略geter和setter方法以及 构造方法

2.4 userMapper.xml编写

<?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.engle.vo.UserMapper">

<insert id="insertOne" parameterType="user">
INSERT INTO user(name,password) VALUES (#{name},#{password})
</insert>

<select id="selectOne" parameterType="int" resultType="user">
SELECT * FROM user WHERE id=#{id}
</select>
</mapper>

2.5 dao层编写(userdao和userdaoimpl)

public interface UserDao {
User SelectOne(int id);
}

public class UserDaoImpl extends SqlSessionDaoSupport implements UserDao {

public User SelectOne(int id) {
String statement = "com.engle.vo.UserMapper.selectOne";
return getSqlSession().selectOne(statement,1);
}
}

2.6 utils层

public class MybatisUtils {
public static UserDao getUserDao(){
ApplicationContext context = new ClassPathXmlApplicationContext("ApplicationContext.xml");
return (UserDao) context.getBean("userDao");
}
}

2.7 service层(service及其实现)

public interface UserService {
User selectOne();
}

public class UserServiceImpl implements UserService {

private UserDao userDao;

public void setUserDao(UserDao userDao) {
this.userDao = userDao;
}

public User selectOne() {
User user = userDao.SelectOne(1);
return user;
}
}

2.8 action层

public class UserAction {
private User user;
private UserService service;

public User getUser() {
return user;
}

public void setUser(User user) {
this.user = user;
}

public UserService getService() {
return service;
}

public void setService(UserService service) {
this.service = service;
}

public String getOneUser() throws Exception {
user = service.selectOne();
System.out.println(user);
return "success";
}
}

2.9 applicationContext.xml配置

<?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: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.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">

<!--配置通知-->
<tx:advice id="txAdvice" transaction-manager="txManager">
<tx:attributes>
<tx:method name="select*" read-only="true"/>
<tx:method name="insert*" propagation="REQUIRED"/>
<tx:method name="update*" propagation="REQUIRED"/>
<tx:method name="delete*" propagation="REQUIRED"/>
</tx:attributes>
</tx:advice>

<!--切入点-->
<aop:config>
<aop:pointcut id="pointcut" expression="execution(* com.engle.dao.impl.UserDaoImpl.*(..))"/>
<aop:advisor advice-ref="txAdvice" pointcut-ref="pointcut"/>
</aop:config>

<!--数据源配置-->
<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="com.mysql.jdbc.Driver"/>
<property name="url" value="jdbc:mysql://localhost:3306/spring"/>
<property name="username" value="root"/>
<property name="password" value="root"/>

</bean>

<!--配置sessionFacfory-->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<!--加载dataSource-->
<property name="dataSource" ref="dataSource"/>
<!--加载usermapper.xml-->
<property name="configLocation" value="classpath:mybatis-config.xml"/>
</bean>

<!--userDao容器-->
<bean id="userDao" class="com.engle.dao.impl.UserDaoImpl">

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

</bean>
<!--userService容器-->
<bean id="userService" class="com.engle.service.impl.UserServiceImpl">
<property name="userDao" ref="userDao"/>
</bean>
<!--userAction容器-->
<bean id="userAction" class="com.engle.action.UserAction">
<property name="service" ref="userService"/>

</bean>
<!--配置事务管理器-->
<bean id="txManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"/>
</bean>
</beans>

2.10 mybatis-config.xml配置

<?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>

<typeAliases>
<typeAlias type="com.engle.vo.User" alias="user"/>
</typeAliases>
<mappers>
<mapper resource="com/engle/vo/UserMapper.xml"/>
</mappers>

</configuration>

2.11 struts.xml配置

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

<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
"http://struts.apache.org/dtds/struts-2.3.dtd">

<struts>
<package name="default" namespace="/" extends="struts-default">
<action name="support" class="userAction" method="getOneUser">
<result>/user.jsp</result>
</action>
</package>
</struts>

2.12 user.jsp编写

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@taglib prefix="s" uri="/struts-tags" %>
<html>
<head>
<title>user page</title>
</head>
<body align="center">
<s:property  value="user.toString()"/>

</body>
</html>

3.运行结果( 请求 http://localhost:8080/project-name/support)

User{id=1, name=’zhansan’, age=’14’}

4.源码地址: https://github.com/engle025/ssm_demo.git