jdk1.6 httpserver如何获取表单post过来的表单元素值呢？

package com.tdt.server.httpserver;

import java.io.BufferedReader;

import java.io.IOException;

import java.io.InputStream;

import java.io.InputStreamReader;

import java.io.OutputStream;

import java.net.InetSocketAddress;

import com.sun.net.httpserver.HttpExchange;

import com.sun.net.httpserver.HttpHandler;

import com.sun.net.httpserver.HttpServer;

import com.sun.net.httpserver.spi.HttpServerProvider;

/**

• @project SimpleHttpServer
  
• @author sunnylocus
  
• @vresion 1.0 2009-9-2
  

• @description 自定义的http服务器
  
  */
  
  public class MyHttpServer {
  
  //启动服务，监听来自客户端的请求
  
  public static void httpserverService() throws IOException {
  
  HttpServerProvider provider = HttpServerProvider.provider();
  
  HttpServer httpserver =provider.createHttpServer(new InetSocketAddress(6666), 100);//监听端口6666,能同时接 受100个请求
  
  httpserver.createContext("/myApp", new MyHttpHandler());
  
  httpserver.setExecutor(null);
  
  httpserver.start();
  
  System.out.println("server started");
  
  }
  
  //Http请求处理类
  
  static class MyHttpHandler implements HttpHandler {
  
  public void handle(HttpExchange httpExchange) throws IOException {
  
  String responseMsg = "ok"; //响应信息
  
  InputStream in = httpExchange.getRequestBody(); //获得输入流
  
  BufferedReader reader = new BufferedReader(new InputStreamReader(in));
  
  String temp = null;
  
  while((temp = reader.readLine()) != null) {
  
  System.out.println("client request:"+temp);
  
  }
  
  httpExchange.sendResponseHeaders(200, responseMsg.length()); //设置响应头属性及响应信息的长度
  
  OutputStream out = httpExchange.getResponseBody(); //获得输出流
  
  out.write(responseMsg.getBytes());
  
  out.flush();
  
  httpExchange.close();

  }   
  

  }
  
  public static void main(String[] args) throws IOException {
  
  httpserverService();
  
  }
  
  }

MyHttpHandler 中如何去获取request中的各个表单元素的值？