Spring-Struts-Mybatis整合

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在这里我使用的是struts2.3.7+Spring4.3.4+Mybatis3.4.1

首先需要导入jar包（需要注意包冲突如log4j重复javassist-3.18.1-GA.jar重复等）

然后配置web.xml文件

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

<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">

<display-name>Spring_Struts_MyBatis</display-name>

<welcome-file-list>

<welcome-file>index.html</welcome-file>

<welcome-file>index.htm</welcome-file>

<welcome-file>index.jsp</welcome-file>

<welcome-file>default.html</welcome-file>

<welcome-file>default.htm</welcome-file>

<welcome-file>default.jsp</welcome-file>

</welcome-file-list>

<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>

<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>*.action</url-pattern>

</filter-mapping>

</web-app>

applicationContext.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:aop="http://www.springframework.org/schema/aop"

xmlns:context="http://www.springframework.org/schema/context" 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/aop http://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">
<!-- 引入配置文件 -->

<context:property-placeholder location="classpath:db.properties" />

<!-- 数据源 -->

<bean id="dataSource"

class="org.springframework.jdbc.datasource.DriverManagerDataSource">

<property name="driverClassName" value="${jdbc.driver}" />

<property name="url" value="${jdbc.url}" />

<property name="username" value="${jdbc.username}" />

<property name="password" value="${jdbc.password}" />

</bean>

<!-- 创建Mybatis SessionFactory -->

<bean id="SqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">

<!-- 给session工厂配置数据源 -->

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

<!-- 告诉session工厂mybatis的核心配置在哪里 -->

<property name="configLocation" value="classpath:mybatis.xml"/>

</bean>

<!-- 事务管理者 -->

<bean id="txMananger" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">

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

</bean>

<!-- 开启事务 -->

<tx:annotation-driven transaction-manager="txMananger"/>

<!--创建数据映射器，数据映射器必须为接口 -->

<bean id="userMapper" class="org.mybatis.spring.mapper.MapperFactoryBean">

<property name="mapperInterface" value="com.lcl.dao.IMybatisDao" />

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

</bean>

<!-- service -->

<bean id="myService" class="com.lcl.service.impl.MyService">

<!-- 这个Dao就是注册在Mybatis中的Mapper -->

<property name="mybatisDao" ref="userMapper"/>

</bean>

<!-- strutsAction -->

<bean id="struts_action" class="com.lcl.action.StrutsAction" >

<property name="service" ref="myService"></property>

</bean>

</beans>

Mybatis核心xml文件

<?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>

<mappers>

<mapper class="com.lcl.dao.IMybatisDao"/>

</mappers>

</configuration>

<?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="spring_struts" namespace="/" extends="struts-default">

<action name="struts" class="struts_action">

<result type="redirect">/struts.jsp</result>

</action>

</package>

</struts>

Service接口

package com.lcl.service;

import java.util.List;

import org.springframework.transaction.annotation.Transactional;

import com.lcl.entity.UserBean;

@Transactional

public interface IService {

public void add(String username, int password);

public void remove(int password);

public void modify(String username, int password, int id);

public UserBean findById(int id);

public List<UserBean> findAll();

}

package com.lcl.service.impl;

import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.stereotype.Service;

import org.springframework.transaction.annotation.Transactional;

import com.lcl.dao.IMybatisDao;

import com.lcl.entity.UserBean;

import com.lcl.service.IService;

@Service

public class MyService implements IService {

@Autowired

private IMybatisDao mybatisDao;

public IMybatisDao getMybatisDao() {

return mybatisDao;

}

public void setMybatisDao(IMybatisDao mybatisDao) {

this.mybatisDao = mybatisDao;

}

public void add(String username, int password) {

mybatisDao.insert(username, password);

}

public void remove(int password) {

mybatisDao.deleteById(password);

}

public void modify(String username, int password, int id) {

mybatisDao.update(username, password, id);

}

public UserBean findById(int id) {

return mybatisDao.selectById(id);

}

public List<UserBean> findAll() {

return mybatisDao.selectAll();

}

}

实体类

package com.lcl.entity;

public class UserBean {

private String username;

private int password;

private int id;

public String getUsername() {

return username;

}

public void setUsername(String username) {

this.username = username;

}

public int getPassword() {

return password;

}

public void setPassword(int password) {

this.password = password;

}

public int getId() {

return id;

}

public void setId(int id) {

this.id = id;

}

}

mybatis数据库查询语句

package com.lcl.dao;

import java.util.List;

import org.apache.ibatis.annotations.Delete;

import org.apache.ibatis.annotations.Insert;

import org.apache.ibatis.annotations.Param;

import org.apache.ibatis.annotations.Select;

import org.apache.ibatis.annotations.Update;

import com.lcl.entity.UserBean;

public interface IMybatisDao {

@Insert("insert into user(username,password) values(#{username},#{password})")

public void insert(@Param("username")String username,@Param("password")int password);

@Delete("delete from user where id=#{id}")

public void deleteById(@Param("id")int id);

@Update("update user set username=#{username},password=#{password} where id=#{id}")

public void update(@Param("username")String username,@Param("password")int password,@Param("id")int id);

@Select("select * from user where id=#{id}")

public UserBean selectById(int id);

@Select("select * from user")

public List<UserBean> selectAll();

}

Struts的action

package com.lcl.action;

import java.util.List;

import com.lcl.entity.UserBean;

import com.lcl.service.IService;

import com.opensymphony.xwork2.ActionSupport;

@SuppressWarnings("serial")

public class StrutsAction extends ActionSupport {

private String username;

private String password;

private IService service;

public String getUsername() {

return username;

}

public void setUsername(String username) {

this.username = username;

}

public String getPassword() {

return password;

}

public void setPassword(String password) {

this.password = password;

}

public IService getService() {

return service;

}

public void setService(IService service) {

this.service = service;

}

@Override

public String execute() throws Exception {

service.add("mybatis", 123);

List<UserBean> findAll = service.findAll();

System.out.println(findAll);

return SUCCESS;

}

}

目录结构