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blog.csdn.net/jsu_9207/ar… 2.2 配置xml文件
<?xml version="1.0" encoding="UTF-8"?> <web-app xmlns="xmlns.jcp.org/xml/ns/java…" xmlns:xsi="www.w3.org/2001/XMLSch…" xsi:schemaLocation="xmlns.jcp.org/xml/ns/java… xmlns.jcp.org/xml/ns/java…" 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,age) VALUES (#{name},#{age}) </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="www.springframework.org/schema/bean…" xmlns:xsi="www.w3.org/2001/XMLSch…" xmlns:aop="www.springframework.org/schema/aop" xmlns:tx="www.springframework.org/schema/tx" xsi:schemaLocation=" www.springframework.org/schema/bean… www.springframework.org/schema/bean… www.springframework.org/schema/tx www.springframework.org/schema/tx/s… www.springframework.org/schema/aop www.springframework.org/schema/aop/…"> <!--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" "mybatis.org/dtd/mybatis…"> <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" "struts.apache.org/dtds/struts…"> <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: github.com/engle025/ss…
