传递请求到Java后台自己总结出了三种方式，也是我在项目当中用到的三种方式，今天把它写出来，一是为正在学习flex的新手一个好的指导，二是给自己是一个不忘的笔记：
一，通过httpService向java的servlet发送请求，然后返回一个结果：
第一步新一个httpService.mxml文件:
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute">
<mx:Button x="277" y="162" label="点击" width="194" height="73" id="myButton" click="myFunction()"/>
<mx:HTTPService
id="myHttpService"
result="myResult(event)"
fault="myFault(event)"
method="POST"
url="http://127.0.0.1:8080/httpService01/httpservcie.do">
<mx:request xmlns="">
<userName>何正元</userName>
<userPwd>123</userPwd>
</mx:request>
</mx:HTTPService>
<mx:Script>
<![CDATA[
import mx.rpc.events.FaultEvent;
import mx.controls.Alert;
import mx.rpc.events.ResultEvent;
private function myFunction():void{
myHttpService.send();
}
private function myResult(event:ResultEvent){
var msg = event.result.toString();
Alert.show(msg);
}
private function myFault(event:FaultEvent){
var msg = event.fault.toString();
Alert.show("错误:"+msg);
}
]]>
</mx:Script>
</mx:Application>
第二步，写一个servlet:
package com.lovo;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class HttpService extends HttpServlet {
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
this.doPost(request, response);
}
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
request.setCharacterEncoding("UTF-8");
response.setContentType("text/html;charset=utf-8;");
PrintWriter out = response.getWriter();
String userName = request.getParameter("userName");
String userPwd = request.getParameter("userPwd");
out.print("你输入的姓名为："+userName+ "密码为:"+userPwd);
}
}
对于httpServlet就介绍完成了。上面代码是通过测试的。
