struts2与spring都是java EE中非常流行的框架，下面就是用idea这个非常只能的java IDE工具进行spring与struts2的整合

一，新建一个Project，勾选下图红圈的两项

idea会自动下载一部分必须的jar包，并且创建好工程文件目录

二，加入缺少的jar包，idea下载了部分，但是还是缺少一些

• springframework.asm-XXXXXX.jar
• springframework.beans-XXXXXX.jar
• springframework.context-XXXXXX.jar
• springframework.expression-XXXXXX.jar
• springframework.web-XXXXXX.jar
  XXXXX:spring版本号

三准备工作完了，就是写程序了

先将完整的目录结构贴出来

1.下完成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">
    <display-name>struts2</display-name>
    <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
    </welcome-file-list>
    
    <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>/*</url-pattern>
    </filter-mapping>
</web-app>

2.然后是LoginAction

package per.summer.actions;

import com.opensymphony.xwork2.ActionSupport;
import per.summer.beansFactory.MyService;

/**
 * Created by summer on 17-4-4.
 */
public class LoginAction extends ActionSupport{
   private String username;
   private String password;
   //业务逻辑组件
   private MyService ms;

    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 MyService getMs() {
    return ms;
    }

    public void setMs(MyService ms) {
    this.ms = ms;
    }

    @Override
    public String execute() throws Exception {
    if (ms.validLogin(username, password).equals("success")) {
        return SUCCESS;
    } else {
        return ERROR;
    }
    }
}

3.业务逻辑组件(MyService)与其接口

package per.summer.beansFactory;

/**
 * Created by summer on 17-4-4.
 */
public interface MyService {
    String validLogin(String username , String pass);
}



package per.summer.beans;

import per.summer.beansFactory.MyService;

/**
 * Created by summer on 17-4-4.
 */
public class MyServiceImpl implements MyService {
    public String validLogin(String username , String pass) {
    if (username.equals("summer") &&  pass.equals("manager")) {
        return "success";
    } else {
        return "error";
    }
    }
}

4.applicationContext.xml文件。该文件需要与web.xml同一目录

<?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:p="http://www.springframework.org/schema/p"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
    <bean id="myService"
      class="per.summer.beans.MyServiceImpl"/>
    <bean id="userClass" class="per.summer.actions.LoginAction"
      scope="prototype"
      p:ms-ref="myService"/>
</beans>

5.struts.xml文件

<?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>
    <constant name="struts.devMode" value="true"/>
    <package name="summer" extends="struts-default">
        <!--这里的userClass就不是具体的类了，他是一个spring bean在applicationContext.xml中设置的一个bean-->
    <action name="login" class="userClass">
        <result name="success">/WEB-INF/JSP/welcome.jsp</result>
        <result name="error">/WEB-INF/JSP/error.jsp</result>
    </action>
    </package>
</struts>

6.index.jsp

<%@ taglib prefix="s" uri="/struts-tags" %>
<%--
  Created by IntelliJ IDEA.
  LoginAction: summer
  Date: 17-4-4
  Time: 下午2:07
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
  <title>Login Page</title>
</head>
<body>
<s:form action="login" method="POST">
  <s:textfield name="username" label="username"/>
  <s:password name="password" label="password"/>
  <s:submit label="login"></s:submit>
</s:form>
</html>

welcome.jsp与error.jsp就不给出了，自己想咋写就咋写

四,结果