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Struts2 action中一个方法返回多个页面

2016-07-03 15:39 645 查看
<span style="font-family: Arial, Helvetica, sans-serif; background-color: rgb(255, 255, 255);">很多时候，一个页面或不同页面中有多个form表单需要提交到action中的同一个方法中，这时，可在form表单提交的action后加参数。具体做法如下</span>
<span style="font-family: Arial, Helvetica, sans-serif; background-color: rgb(255, 255, 255);">方便起见，在同一个页面建两个form 标签，提交到同一action中相同的方法中。在提交的action后加上参数"flag"分别为1和2。</span>
<span style="font-family: Arial, Helvetica, sans-serif; background-color: rgb(255, 255, 255);"></span><pre name="code" class="html"><%@ 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>
</head>

<body>

<!--flag参数值为1  -->
<form action="Test_test.action?flag=1" method="post">
<input type="submit" value="这是第一个action"/>
</form>
<br>
<br>
<!--flag参数值为2  -->
<form action="Test_test.action?flag=2" method="post">
<input type="submit" value="这是第二个action"/>
</form>
</body>
</html>



<span style="font-family:Arial, Helvetica, sans-serif;"><span style="background-color: rgb(255, 255, 255);">接着创建一个Action</span></span>
<span style="font-family:Arial, Helvetica, sans-serif;"><span style="background-color: rgb(255, 255, 255);"></span></span><pre name="code" class="java">package action;
import javax.servlet.http.HttpServletRequest;

import org
4000
.apache.struts2.ServletActionContext;

import com.opensymphony.xwork2.ActionSupport;

public class TestAction extends ActionSupport{
//获得HttpServletRequest对象
private HttpServletRequest request=ServletActionContext.getRequest();

public String test()
{
//判断参数值
if (request.getParameter("flag").equals("1")) {
return "flag1";
}
else{
return "flag2";
}
}

}



<span style="font-family:Arial, Helvetica, sans-serif;"><span style="background-color: rgb(255, 255, 255);">配置struts.xml</span></span>
<span style="font-family:Arial, Helvetica, sans-serif;"><span style="background-color: rgb(255, 255, 255);"></span></span><pre name="code" class="html"><?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.1//EN" "http://struts.apache.org/dtds/struts-2.1.dtd">
<struts>
<package name="test" namespace="/" extends="struts-default">
<action name="*_*" class="action.{1}Action" method="{2}">
<!--根据不同的返回值跳转到对应的jsp页面  -->
<result name="flag1">/flag1.jsp</result>
<result name="flag2">/flag2.jsp</result>
</action>
</package>
</struts>



<span style="font-family:Arial, Helvetica, sans-serif;"><span style="background-color: rgb(255, 255, 255);">根据struts.xml中配置再创建两个简单的JSP页面，还有web.xml中struts框架的配置这里就不在赘述，直接给出页面效果</span></span>
<span style="font-family:Arial, Helvetica, sans-serif;"><span style="background-color: rgb(255, 255, 255);"><img src="https://img-blog.csdn.net/20160703154924261?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center" alt="" />
</span></span>
<span style="font-family:Arial, Helvetica, sans-serif;"><span style="background-color: rgb(255, 255, 255);"><img src="https://img-blog.csdn.net/20160703154938901?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center" alt="" />
</span></span>
<span style="font-family:Arial, Helvetica, sans-serif;"><span style="background-color: rgb(255, 255, 255);">这里可以看到浏览器地址栏中action后面参数flag的值</span></span>
<span style="font-family:Arial, Helvetica, sans-serif;"><span style="background-color: rgb(255, 255, 255);"><img src="https://img-blog.csdn.net/20160703155052420?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center" alt="" />
</span></span>
<span style="font-family:Arial, Helvetica, sans-serif;"><span style="background-color: rgb(255, 255, 255);">
</span></span>

                                            

                                        

                        
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