多个action之间跳转传参问题

最新推荐文章于 2024-07-09 15:08:59 发布

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本文详细介绍了如何在Struts2框架下解决Action间跳转时的参数传递问题，通过配置web.xml文件和struts.xml配置文件实现参数的正确传递。并提供了实际代码示例，包括Action类的定义、方法实现以及对应的jsp页面展示。

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第一次写文章，不免有些鸡冻。弄了一个多小时，终于把action之间跳转传参问题解决了，如果什么不对请高手指点！废话少说，直接上代码

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app id="WebApp_9" version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">

	<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>

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

</web-app>

sturts.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
    "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
    "http://struts.apache.org/dtds/struts-2.0.dtd">

<struts>

	<constant name="struts.enable.DynamicMethodInvocation" value="false" />
	<constant name="struts.devMode" value="true" />

	<package name="front" namespace="/" extends="struts-default">
		
		<action name="action1" class="com.test.action.Action1" method="method1">
			<result name="success" type="chain">
				<param name="list1">${list1}</param>
				<param name="actionName">action2</param>
				<param name="method">method2</param>
			</result>
		</action>
		
		<action name="action2" class="com.test.action.Action2">
			<result name="success" type="chain">
				<param name="list1">list1</param>
				<param name="list2">list2</param>
				<param name="actionName">action3</param>
				<param name="method">method3</param>
			</result>
		</action>
		<action name="action3" class="com.test.action.Action3">
			<result name="success">a.jsp</result>
		</action>
	</package>
</struts>

action1.java

package com.test.action;

import java.util.ArrayList;
import java.util.List;

import com.opensymphony.xwork2.ActionSupport;

@SuppressWarnings("serial")
public class Action1 extends ActionSupport {


	private List<String> list1;

	public List<String> getList1() {
		return list1;
	}

	public void setList1(List<String> list1) {
		this.list1 = list1;
	}
	
	public String  method1() {
		
		list1 = new ArrayList<String>();
		list1.add("a");
		list1.add("b");
		list1.add("c");
		
		return SUCCESS;
	}

}

action2.java

package com.test.action;

import java.util.ArrayList;
import java.util.List;

import com.opensymphony.xwork2.ActionSupport;

@SuppressWarnings("serial")
public class Action2 extends ActionSupport {
	
	private List<String> list2;

	public List<String> getList2() {
		return list2;
	}

	public void setList2(List<String> list2) {
		this.list2 = list2;
	}

	public String method2() {

		list2 = new ArrayList<String>();
		list2.add("d");
		list2.add("e");
		list2.add("f");

		return SUCCESS;
	}

}

action3.java

package com.test.action;

import java.util.ArrayList;
import java.util.List;

import com.opensymphony.xwork2.ActionSupport;

@SuppressWarnings("serial")
public class Action3 extends ActionSupport {

	private List<String> list3;

	public List<String> getList3() {
		return list3;
	}

	public void setList3(List<String> list3) {
		this.list3 = list3;
	}

	public String method3() {

		list3 = new ArrayList<String>();
		list3.add("g");
		list3.add("h");
		list3.add("i");

		return SUCCESS;
	}

}

index.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
	String path = request.getContextPath();
	String basePath = request.getScheme() + "://"
			+ request.getServerName() + ":" + request.getServerPort()
			+ path + "/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
	<head>
		<base href="<%=basePath%>">

		<title>My JSP 'index.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">
	</head>

	<body>
		<form action="action1">
			<input type="submit" value="嘿嘿">
		</form>
	</body>
</html>

a.jsp

<%@ page language="java" import="java.util.*" pageEncoding="ISO-8859-1"%>
<%
	String path = request.getContextPath();
	String basePath = request.getScheme() + "://"
			+ request.getServerName() + ":" + request.getServerPort()
			+ path + "/";
%>
<%@taglib prefix="c" uri="http://java.sun.com/jstl/core_rt"%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
	<head>
		<base href="<%=basePath%>">

		<title>My JSP 'a.jsp.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">

	</head>

	<body>
		${empty list1}<br/>
		<c:forEach items="${list1}" var="a">
			----------${a }<br/>
		</c:forEach>
		${empty list2 }<br/>
		<c:forEach items="${list2}" var="b">
			----------${b }<br/>
		</c:forEach>
		${empty list3 }<br/>
		<c:forEach items="${list3}" var="c">
			----------${c }<br/>
		</c:forEach>
	</body>
</html>

写的不好请多担待！

源码

http://download.youkuaiyun.com/detail/zeinima1062/4695995