Spring和Struts整合---继承ActionSupport的方法

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Struts Spring JSP Myeclipse Java

目的：联系使用Spring和Struts整合开发
时间：2009年8月8日下午
参考：javaeye和CSDN的博客文章
内容：Spring与struts整合主要有三种方式，通过Spring的ActionSupport类，通过Spring的DelegatingRequestProcessor类、
     通过Spring的DelegatingActionProxy类。
     第一中方式: 通过Spring的ActionSupport类。方法是Action不在继承Struts提供的Action，而是继承于Spring提供的
     ActionSupport类。然后在Action中获得Spring的ApplicationContext。
     这里以最简单的登录的程序的例子来演示，就是想让不了解的人也是给自己记录一下。
     过程我就不说了，我使用MyEclipse+Tomcat6.0来开发的，主要演示一下各个部分的功能。

     login.jsp的文件

<%@ page language="java" pageEncoding="gb2312"%>
<%@ taglib uri="http://jakarta.apache.org/struts/tags-bean" prefix="bean"%> 
<%@ taglib uri="http://jakarta.apache.org/struts/tags-html" prefix="html"%>
 
<html> 
	<head>
		<title>JSP for LoginForm form</title>
	</head>
	<body>
		<html:form action="login.do" method="post">
			username : <html:text property="username"/><html:errors property="username"/><br/>
			password : <html:password property="password"/><html:errors property="password"/><br/>
			<html:submit value="确定" property="submit"/>
			<html:cancel value="取消" property="cancel"/><br>
		</html:form>
	</body>
</html>

successLogin.jsp的文件

<%@ page language="java" pageEncoding="gb2312"%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <title>My JSP 'successLogin.jsp' starting page</title>

	<meta http-equiv="pragma" content="no-cache">
	<meta http-equiv="cache-control" content="no-cache">
	<meta http-equiv="expires" content="0">    
	<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
	<meta http-equiv="description" content="This is my page">
	<!--
	<link rel="stylesheet" type="text/css" href="styles.css">
	-->

  </head>
  
  <body><h1 align="center">Success To Login!!!<br></h1><div align="center"> 
     
  </div></body>
</html>

loginFail.jsp的文件

<%@ page language="java" pageEncoding="gb2312"%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <title>My JSP 'failLogin.jsp' starting page</title>

	<meta http-equiv="pragma" content="no-cache">
	<meta http-equiv="cache-control" content="no-cache">
	<meta http-equiv="expires" content="0">    
	<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
	<meta http-equiv="description" content="This is my page">
	<!--
	<link rel="stylesheet" type="text/css" href="styles.css">
	-->

  </head>
  
  <body> 
    <h1 align="center">Fail To Login!!!<br></h1>
  </body>
</html>

struts-config.xml的文件

     <?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts-config PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 1.2//EN" "http://struts.apache.org/dtds/struts-config_1_2.dtd">

<struts-config>
  <data-sources />
  <form-beans >
    <form-bean name="LoginForm" type="com.test.struts.form.LoginForm" />

  </form-beans>

  <global-exceptions />
  <global-forwards>
  	<forward name="success" path="/successLogin.jsp"/>
  	<forward name="fail" path="/failLogin.jsp"/>
  </global-forwards>
  <action-mappings >
    <action
      attribute="LoginForm"
      name="LoginForm"
      path="/login"
      scope="request"
      type="com.test.struts.action.LoginAction" />

  </action-mappings>

  <message-resources parameter="com.test.struts.ApplicationResources" />
  
  
  <plug-in className="org.springframework.web.struts.ContextLoaderPlugIn">
  	<set-property property="contextConfigLocation" value="/WEB-INF/classes/applicationContext.xml"/>
  </plug-in>
</struts-config>

applicationContext.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd">

<beans>
	<bean id="loginServiceImpl" class="com.test.spring.impl.LoginServiceImpl"/>
</beans>

LoginAction.java

/*
 * Generated by MyEclipse Struts
 * Template path: templates/java/JavaClass.vtl
 */
package com.test.struts.action;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.springframework.web.struts.ActionSupport;

import com.test.spring.User;
import com.test.spring.impl.LoginServiceImpl;
import com.test.struts.form.LoginForm;

/** 
 * MyEclipse Struts
 * Creation date: 08-08-2009
 * 
 * XDoclet definition:
 * @struts.action path="LoginAction" name="LoginFrom" input="/login.jsp" scope="request" validate="true"
 */
public class LoginAction extends ActionSupport {
	/*
	 * Generated Methods
	 */

	/** 
	 * Method execute
	 * @param mapping
	 * @param form
	 * @param request
	 * @param response
	 * @return ActionForward
	 */
	public ActionForward execute(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {
		LoginForm loginForm = (LoginForm) form;// TODO Auto-generated method stub
		
		LoginServiceImpl lsi =(LoginServiceImpl)getWebApplicationContext().getBean("loginServiceImpl");
		
		User user = new User();
		user.setUsername(loginForm.getUsername());
		user.setPassword(loginForm.getPassword());
		
		if(lsi.checkUser(user)){
			return mapping.findForward("success");
		}
		else
			return mapping.findForward("fail");
	}
}

LoginServiceImpl.java

package com.test.spring.impl;

import com.test.spring.LoginService;
import com.test.spring.User;

public class LoginServiceImpl implements LoginService {

	public boolean checkUser(User user) {
		// TODO Auto-generated method stub
		boolean result = false;
		String username = user.getUsername();
		String password = user.getPassword();
		if("admin".equals(username)&&"admin".equals(password)){
			result = true;
		}
		else
			result = false;
		return result;
	}

}

struts_spring_3.rar (1.2 MB)
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