jsp动态发送数据

下载commons-httpclient-2.0-alpha2.jar
MyJsp.jsp

<%@ page language="java" import="java.util.*" pageEncoding="ISO-8859-1"%>
<%
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 'MyJsp.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>
      <form method="get" action="testPostBean.jsp" name="myForm"><p>&nbsp;<input type="text" name="userName"></p><p>&nbsp;<input type="text" name="passWord"></p><p>&nbsp;<input type="radio" value="china" name="radio1">china</p><p>&nbsp;
      <input type="submit" name="button2" value="submit"></p><p>&nbsp;</p><p>&nbsp;</p><p>&nbsp;</p></form></body>
</html>

testPostBean.jsp

<%@ page language="java" import="java.util.*" pageEncoding="gb2312"%>
<%
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 'testPostBean.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>
    <jsp:useBean id="postBean" class="myServlet.PostBean"></jsp:useBean>
    <jsp:setProperty property="url" name="postBean" value="http://localhost:8080/success/viewPoint.jsp"/>
    <jsp:setProperty property="parameters" name="postBean" value="<%=request.getParameterMap() %>"/>
    <jsp:getProperty property="post" name="postBean"/>
  </body>
</html>



postBean.java

package myServlet;
import java.io.IOException;
import java.util.*;

import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.HttpException;
import org.apache.commons.httpclient.HttpStatus;
import org.apache.commons.httpclient.NameValuePair;
import org.apache.commons.httpclient.methods.PostMethod;
public class PostBean {

	private Map parameters;
	private String url;
	private String post;
	
	public PostBean(){}
	
	
	public void setParameters(Map params)
	{
		this.parameters=params;
	}
	public Map getParameters()
	{
		return parameters;
	}
	public void setUrl(String url)
	{
		this.url=url;
	}
	public String getUrl()
	{
		return url;
	}
	
	public void setPost(String post)
	{
		this.post=post;
	}
	
	public String getPost() throws HttpException, IOException
	{
		String rString="";
		
		HttpClient hc=new HttpClient();
		PostMethod pm=new PostMethod(url);
		
		
		pm.addParameters(getParams(parameters));
		
		hc.executeMethod(pm);
		
		if(pm.getStatusCode()==HttpStatus.SC_OK)
		{
			rString=pm.getResponseBodyAsString();
		}
		else
		{
			rString="the post action raised an error"+pm.getStatusLine();
		}
		post=rString;
		pm.releaseConnection();
		return post;
	}
	
	private NameValuePair[] getParams(Map map)
	{
		NameValuePair[] pair=new NameValuePair[map.size()];
		Iterator iterator=map.entrySet().iterator();
		
		int i=0;
		
		while(iterator.hasNext())
		{
			Map.Entry en=(Map.Entry)iterator.next();
			pair[i]=new NameValuePair((String)en.getKey(),((String[])en.getValue())[0]);
			i++;
		}
		return pair;
	}
}

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