Android向服务器传接和接收数据的方法汇总

<p><span style="font-size:14px;">Android应用经常会和服务器端交互，这就需要手机客户端发送网络请求，下面介绍四种常用网络请求方式，我这边是通过Android单元测试来完成这四种方法的，还不清楚Android的单元测试的同学们请看</span><a target=_blank href="http://blog.csdn.net/zuolongsnail/archive/2011/04/21/6338366.aspx"><span style="font-size:14px;">Android开发技巧总结</span></a><span style="font-size:14px;">中的Android单元测试的步骤一文。</span></p><p><span style="color:#0000ff;"><span style="font-size:14px;">java.net包中的HttpURLConnection类</span></span></p><p><span style="color:#ff0000;"><span style="font-size:14px;">Get方式：</span></span></p><p><span style="color:#ff0000;"><span style="font-size:12px;"></span></span><div class="dp-highlighter bg_java"><div class="bar"><div class="tools"><strong>[java]</strong> <a target=_blank class="ViewSource" title="view plain" href="http://blog.csdn.net/zuolongsnail/article/details/6373051#">view plain</a><a target=_blank class="CopyToClipboard" title="copy" href="http://blog.csdn.net/zuolongsnail/article/details/6373051#">copy</a><div style="Z-INDEX: 99; POSITION: absolute; WIDTH: 18px; HEIGHT: 18px; TOP: 616px; LEFT: 547px"><embed id="ZeroClipboardMovie_1" height="18" name="ZeroClipboardMovie_1" type="application/x-shockwave-flash" align="middle" pluginspage="http://www.macromedia.com/go/getflashplayer" width="18" src="http://static.blog.csdn.net/scripts/ZeroClipboard/ZeroClipboard.swf" allownetworking="all" loop="false" menu="false" quality="best" bgcolor="#ffffff" allowscriptaccess="always" allowfullscreen="true" flashvars="id=1&width=18&height=18" wmode="transparent" /></div></div></div><ol class="dp-j"><li class="alt"><span><span class="comment">// Get方式请求</span><span>  </span></span></li><li><span><span class="keyword">public</span><span> </span><span class="keyword">static</span><span> </span><span class="keyword">void</span><span> requestByGet() </span><span class="keyword">throws</span><span> Exception {  </span></span></li><li class="alt"><span>    String path = <span class="string">"https://reg.163.com/logins.jsp?id=helloworld&pwd=android"</span><span>;  </span></span></li><li><span>    <span class="comment">// 新建一个URL对象</span><span>  </span></span></li><li class="alt"><span>    URL url = <span class="keyword">new</span><span> URL(path);  </span></span></li><li><span>    <span class="comment">// 打开一个HttpURLConnection连接</span><span>  </span></span></li><li class="alt"><span>    HttpURLConnection urlConn = (HttpURLConnection) url.openConnection();  </span></li><li><span>    <span class="comment">// 设置连接超时时间</span><span>  </span></span></li><li class="alt"><span>    urlConn.setConnectTimeout(<span class="number">5</span><span> * </span><span class="number">1000</span><span>);  </span></span></li><li><span>    <span class="comment">// 开始连接</span><span>  </span></span></li><li class="alt"><span>    urlConn.connect();  </span></li><li><span>    <span class="comment">// 判断请求是否成功</span><span>  </span></span></li><li class="alt"><span>    <span class="keyword">if</span><span> (urlConn.getResponseCode() == HTTP_200) {  </span></span></li><li><span>        <span class="comment">// 获取返回的数据</span><span>  </span></span></li><li class="alt"><span>        <span class="keyword">byte</span><span>[] data = readStream(urlConn.getInputStream());  </span></span></li><li><span>        Log.i(TAG_GET, <span class="string">"Get方式请求成功，返回数据如下："</span><span>);  </span></span></li><li class="alt"><span>        Log.i(TAG_GET, <span class="keyword">new</span><span> String(data, </span><span class="string">"UTF-8"</span><span>));  </span></span></li><li><span>    } <span class="keyword">else</span><span> {  </span></span></li><li class="alt"><span>        Log.i(TAG_GET, <span class="string">"Get方式请求失败"</span><span>);  </span></span></li><li><span>    }  </span></li><li class="alt"><span>    <span class="comment">// 关闭连接</span><span>  </span></span></li><li><span>    urlConn.disconnect();  </span></li><li class="alt"><span>}  </span></li></ol></div></p><p></p><p></p><p><span style="color:#ff0000;"><span style="font-size:14px;">Post方式：</span></span></p><p><span style="color:#ff0000;"><span style="font-size:12px;"></span></span><div class="dp-highlighter bg_java"><div class="bar"><div class="tools"><strong>[java]</strong> <a target=_blank class="ViewSource" title="view plain" href="http://blog.csdn.net/zuolongsnail/article/details/6373051#">view plain</a><a target=_blank class="CopyToClipboard" title="copy" href="http://blog.csdn.net/zuolongsnail/article/details/6373051#">copy</a><div style="Z-INDEX: 99; POSITION: absolute; WIDTH: 18px; HEIGHT: 18px; TOP: 1125px; LEFT: 547px"><embed id="ZeroClipboardMovie_2" height="18" name="ZeroClipboardMovie_2" type="application/x-shockwave-flash" align="middle" pluginspage="http://www.macromedia.com/go/getflashplayer" width="18" src="http://static.blog.csdn.net/scripts/ZeroClipboard/ZeroClipboard.swf" allownetworking="all" loop="false" menu="false" quality="best" bgcolor="#ffffff" allowscriptaccess="always" allowfullscreen="true" flashvars="id=2&width=18&height=18" wmode="transparent" /></div></div></div><ol class="dp-j"><li class="alt"><span><span class="comment">// Post方式请求</span><span>  </span></span></li><li><span><span class="keyword">public</span><span> </span><span class="keyword">static</span><span> </span><span class="keyword">void</span><span> requestByPost() </span><span class="keyword">throws</span><span> Throwable {  </span></span></li><li class="alt"><span>    String path = <span class="string">"https://reg.163.com/logins.jsp"</span><span>;  </span></span></li><li><span>    <span class="comment">// 请求的参数转换为byte数组</span><span>  </span></span></li><li class="alt"><span>    String params = <span class="string">"id="</span><span> + URLEncoder.encode(</span><span class="string">"helloworld"</span><span>, </span><span class="string">"UTF-8"</span><span>)  </span></span></li><li><span>            + <span class="string">"&pwd="</span><span> + URLEncoder.encode(</span><span class="string">"android"</span><span>, </span><span class="string">"UTF-8"</span><span>);  </span></span></li><li class="alt"><span>    <span class="keyword">byte</span><span>[] postData = params.getBytes();  </span></span></li><li><span>    <span class="comment">// 新建一个URL对象</span><span>  </span></span></li><li class="alt"><span>    URL url = <span class="keyword">new</span><span> URL(path);  </span></span></li><li><span>    <span class="comment">// 打开一个HttpURLConnection连接</span><span>  </span></span></li><li class="alt"><span>    HttpURLConnection urlConn = (HttpURLConnection) url.openConnection();  </span></li><li><span>    <span class="comment">// 设置连接超时时间</span><span>  </span></span></li><li class="alt"><span>    urlConn.setConnectTimeout(<span class="number">5</span><span> * </span><span class="number">1000</span><span>);  </span></span></li><li><span>    <span class="comment">// Post请求必须设置允许输出</span><span>  </span></span></li><li class="alt"><span>    urlConn.setDoOutput(<span class="keyword">true</span><span>);  </span></span></li><li><span>    <span class="comment">// Post请求不能使用缓存</span><span>  </span></span></li><li class="alt"><span>    urlConn.setUseCaches(<span class="keyword">false</span><span>);  </span></span></li><li><span>    <span class="comment">// 设置为Post请求</span><span>  </span></span></li><li class="alt"><span>    urlConn.setRequestMethod(<span class="string">"POST"</span><span>);  </span></span></li><li><span>    urlConn.setInstanceFollowRedirects(<span class="keyword">true</span><span>);  </span></span></li><li class="alt"><span>    <span class="comment">// 配置请求Content-Type</span><span>  </span></span></li><li><span>    urlConn.setRequestProperty(<span class="string">"Content-Type"</span><span>,  </span></span></li><li class="alt"><span>            <span class="string">"application/x-www-form-urlencode"</span><span>);  </span></span></li><li><span>    <span class="comment">// 开始连接</span><span>  </span></span></li><li class="alt"><span>    urlConn.connect();  </span></li><li><span>    <span class="comment">// 发送请求参数</span><span>  </span></span></li><li class="alt"><span>    DataOutputStream dos = <span class="keyword">new</span><span> DataOutputStream(urlConn.getOutputStream());  </span></span></li><li><span>    dos.write(postData);  </span></li><li class="alt"><span>    dos.flush();  </span></li><li><span>    dos.close();  </span></li><li class="alt"><span>    <span class="comment">// 判断请求是否成功</span><span>  </span></span></li><li><span>    <span class="keyword">if</span><span> (urlConn.getResponseCode() == HTTP_200) {  </span></span></li><li class="alt"><span>        <span class="comment">// 获取返回的数据</span><span>  </span></span></li><li><span>        <span class="keyword">byte</span><span>[] data = readStream(urlConn.getInputStream());  </span></span></li><li class="alt"><span>        Log.i(TAG_POST, <span class="string">"Post请求方式成功，返回数据如下："</span><span>);  </span></span></li><li><span>        Log.i(TAG_POST, <span class="keyword">new</span><span> String(data, </span><span class="string">"UTF-8"</span><span>));  </span></span></li><li class="alt"><span>    } <span class="keyword">else</span><span> {  </span></span></li><li><span>        Log.i(TAG_POST, <span class="string">"Post方式请求失败"</span><span>);  </span></span></li><li class="alt"><span>    }  </span></li><li><span>}  </span></li></ol></div>  </p><p></p><p></p><p><span style="color:#ff0000;"></span></p><p><span style="color:#0000ff;"><span style="font-size:14px;">org.apache.http包中的HttpGet和HttpPost类</span></span></p><p></p><p><span style="color:#0000ff;"><span style="font-size:12px;"></span></span></p><p><span style="color:#ff0000;"><span style="font-size:14px;">Get方式：</span></span></p><p></p><p><span style="color:#ff0000;"><span style="font-size:12px;"></span></span><div class="dp-highlighter bg_java"><div class="bar"><div class="tools"><strong>[java]</strong> <a target=_blank class="ViewSource" title="view plain" href="http://blog.csdn.net/zuolongsnail/article/details/6373051#">view plain</a><a target=_blank class="CopyToClipboard" title="copy" href="http://blog.csdn.net/zuolongsnail/article/details/6373051#">copy</a><div style="Z-INDEX: 99; POSITION: absolute; WIDTH: 18px; HEIGHT: 18px; TOP: 2020px; LEFT: 547px"><embed id="ZeroClipboardMovie_3" height="18" name="ZeroClipboardMovie_3" type="application/x-shockwave-flash" align="middle" pluginspage="http://www.macromedia.com/go/getflashplayer" width="18" src="http://static.blog.csdn.net/scripts/ZeroClipboard/ZeroClipboard.swf" allownetworking="all" loop="false" menu="false" quality="best" bgcolor="#ffffff" allowscriptaccess="always" allowfullscreen="true" flashvars="id=3&width=18&height=18" wmode="transparent" /></div></div></div><ol class="dp-j"><li class="alt"><span><span class="comment">// HttpGet方式请求</span><span>  </span></span></li><li><span><span class="keyword">public</span><span> </span><span class="keyword">static</span><span> </span><span class="keyword">void</span><span> requestByHttpGet() </span><span class="keyword">throws</span><span> Exception {  </span></span></li><li class="alt"><span>    String path = <span class="string">"https://reg.163.com/logins.jsp?id=helloworld&pwd=android"</span><span>;  </span></span></li><li><span>    <span class="comment">// 新建HttpGet对象</span><span>  </span></span></li><li class="alt"><span>    HttpGet httpGet = <span class="keyword">new</span><span> HttpGet(path);  </span></span></li><li><span>    <span class="comment">// 获取HttpClient对象</span><span>  </span></span></li><li class="alt"><span>    HttpClient httpClient = <span class="keyword">new</span><span> DefaultHttpClient();  </span></span></li><li><span>    <span class="comment">// 获取HttpResponse实例</span><span>  </span></span></li><li class="alt"><span>    HttpResponse httpResp = httpClient.execute(httpGet);  </span></li><li><span>    <span class="comment">// 判断是够请求成功</span><span>  </span></span></li><li class="alt"><span>    <span class="keyword">if</span><span> (httpResp.getStatusLine().getStatusCode() == HTTP_200) {  </span></span></li><li><span>        <span class="comment">// 获取返回的数据</span><span>  </span></span></li><li class="alt"><span>        String result = EntityUtils.toString(httpResp.getEntity(), <span class="string">"UTF-8"</span><span>);  </span></span></li><li><span>        Log.i(TAG_HTTPGET, <span class="string">"HttpGet方式请求成功，返回数据如下："</span><span>);  </span></span></li><li class="alt"><span>        Log.i(TAG_HTTPGET, result);  </span></li><li><span>    } <span class="keyword">else</span><span> {  </span></span></li><li class="alt"><span>        Log.i(TAG_HTTPGET, <span class="string">"HttpGet方式请求失败"</span><span>);  </span></span></li><li><span>    }  </span></li><li class="alt"><span>}  </span></li></ol></div></p><p></p><p></p><p><span style="color:#ff0000;"><span style="font-size:14px;">Post方式：</span></span></p><p><span style="color:#ff0000;"><span style="font-size:12px;"></span></span><div class="dp-highlighter bg_java"><div class="bar"><div class="tools"><strong>[java]</strong> <a target=_blank class="ViewSource" title="view plain" href="http://blog.csdn.net/zuolongsnail/article/details/6373051#">view plain</a><a target=_blank class="CopyToClipboard" title="copy" href="http://blog.csdn.net/zuolongsnail/article/details/6373051#">copy</a><div style="Z-INDEX: 99; POSITION: absolute; WIDTH: 18px; HEIGHT: 18px; TOP: 2457px; LEFT: 547px"><embed id="ZeroClipboardMovie_4" height="18" name="ZeroClipboardMovie_4" type="application/x-shockwave-flash" align="middle" pluginspage="http://www.macromedia.com/go/getflashplayer" width="18" src="http://static.blog.csdn.net/scripts/ZeroClipboard/ZeroClipboard.swf" allownetworking="all" loop="false" menu="false" quality="best" bgcolor="#ffffff" allowscriptaccess="always" allowfullscreen="true" flashvars="id=4&width=18&height=18" wmode="transparent" /></div></div></div><ol class="dp-j"><li class="alt"><span><span class="comment">// HttpPost方式请求</span><span>  </span></span></li><li><span><span class="keyword">public</span><span> </span><span class="keyword">static</span><span> </span><span class="keyword">void</span><span> requestByHttpPost() </span><span class="keyword">throws</span><span> Exception {  </span></span></li><li class="alt"><span>    String path = <span class="string">"https://reg.163.com/logins.jsp"</span><span>;  </span></span></li><li><span>    <span class="comment">// 新建HttpPost对象</span><span>  </span></span></li><li class="alt"><span>    HttpPost httpPost = <span class="keyword">new</span><span> HttpPost(path);  </span></span></li><li><span>    <span class="comment">// Post参数</span><span>  </span></span></li><li class="alt"><span>    List<NameValuePair> params = <span class="keyword">new</span><span> ArrayList<NameValuePair>();  </span></span></li><li><span>    params.add(<span class="keyword">new</span><span> BasicNameValuePair(</span><span class="string">"id"</span><span>, </span><span class="string">"helloworld"</span><span>));  </span></span></li><li class="alt"><span>    params.add(<span class="keyword">new</span><span> BasicNameValuePair(</span><span class="string">"pwd"</span><span>, </span><span class="string">"android"</span><span>));  </span></span></li><li><span>    <span class="comment">// 设置字符集</span><span>  </span></span></li><li class="alt"><span>    HttpEntity entity = <span class="keyword">new</span><span> UrlEncodedFormEntity(params, HTTP.UTF_8);  </span></span></li><li><span>    <span class="comment">// 设置参数实体</span><span>  </span></span></li><li class="alt"><span>    httpPost.setEntity(entity);  </span></li><li><span>    <span class="comment">// 获取HttpClient对象</span><span>  </span></span></li><li class="alt"><span>    HttpClient httpClient = <span class="keyword">new</span><span> DefaultHttpClient();  </span></span></li><li><span>    <span class="comment">// 获取HttpResponse实例</span><span>  </span></span></li><li class="alt"><span>    HttpResponse httpResp = httpClient.execute(httpPost);  </span></li><li><span>    <span class="comment">// 判断是够请求成功</span><span>  </span></span></li><li class="alt"><span>    <span class="keyword">if</span><span> (httpResp.getStatusLine().getStatusCode() == HTTP_200) {  </span></span></li><li><span>        <span class="comment">// 获取返回的数据</span><span>  </span></span></li><li class="alt"><span>        String result = EntityUtils.toString(httpResp.getEntity(), <span class="string">"UTF-8"</span><span>);  </span></span></li><li><span>        Log.i(TAG_HTTPGET, <span class="string">"HttpPost方式请求成功，返回数据如下："</span><span>);  </span></span></li><li class="alt"><span>        Log.i(TAG_HTTPGET, result);  </span></li><li><span>    } <span class="keyword">else</span><span> {  </span></span></li><li class="alt"><span>        Log.i(TAG_HTTPGET, <span class="string">"HttpPost方式请求失败"</span><span>);  </span></span></li><li><span>    }  </span></li><li class="alt"><span>}  </span></li></ol></div></p><p></p><p></p><p><span style="COLOR: #ff0000"><span style="font-size:12px;"><span style="color:#000000;"><span style="font-size:14px;">以上是一些部分代码，测试的时候在测试类中运行对应的测试方法即可。</span></span></span></span></p>

<span style="font-size:14px;">package com.example.shezhi;

import java.io.IOException;
import java.io.OutputStream;  
import java.net.HttpURLConnection;  
import java.net.URL;  
import java.net.URLEncoder;  
import java.util.ArrayList;
import java.util.HashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;  

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
import org.apache.http.NameValuePair;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.utils.URLEncodedUtils;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;
  
public class Update   
{  
	String res=" ";
	int ites;
	String version="1";

///////////////////////////////////////////////////////////////////////////////////////// 
   public String getupdate(){
	 //先将参数放入List，再对参数进行URL编码   
	  List<BasicNameValuePair> params = new LinkedList<BasicNameValuePair>();   
	   params.add(new BasicNameValuePair("param1", "1"));   
	   params.add(new BasicNameValuePair("param2", "value2"));   
	     
	   //对参数编码   
	   String param = URLEncodedUtils.format(params, "UTF-8");   
	   //baseUrl              
	   String baseUrl = "http://******/index1.jsp";   
	   //将URL与参数拼接   
	   HttpGet getMethod = new HttpGet(baseUrl + "?" + param);   
	                  
	   HttpClient httpClient = new DefaultHttpClient();   
	   try {
		HttpResponse response = httpClient.execute(getMethod);
		 res="已经请求";
	} catch (ClientProtocolException e) {
		// TODO Auto-generated catch block
		e.printStackTrace();
	} catch (IOException e) {
		// TODO Auto-generated catch block
		e.printStackTrace();
	} //发起GET请求   
	  
	   try {   
	       HttpResponse response = httpClient.execute(getMethod); //发起GET请求   
	     
	      ites=response.getStatusLine().getStatusCode(); //获取响应码   
	      System.out.println(ites+"aaa");
	       res="1213"+EntityUtils.toString(response.getEntity(), "utf-8");//获取服务器响应内容   
	       System.out.println(res+"vvv");
	       
	   } catch (ClientProtocolException e) {   
	       // TODO Auto-generated catch block   
	       e.printStackTrace();   
	   } catch (IOException e) {   
	       // TODO Auto-generated catch block   
	       e.printStackTrace();   
	   }  
	  
	   return res;
   }
  

   /******************************************************************************************** 
 /**
  * HttpClient  Post方法
  * @return
  */
   public String Postupdate(){
	   String urlPath="http://******/index1.jsp";  
       String realPath=urlPath.replaceAll(" ", "");//把多余的空格替换掉   
       HttpPost httpRequest=new HttpPost(realPath);
	   // 添加要传递的参数  
	   List<NameValuePair> params = new ArrayList<NameValuePair>();
	   NameValuePair pair1 = new BasicNameValuePair("username", "gzw");
	   NameValuePair pair2 = new BasicNameValuePair("password", "123");
	   params.add(pair1);
	   params.add(pair2);
       try
       {
    	// 设置字符集  
    	   HttpEntity httpentity = new UrlEncodedFormEntity(params, "utf-8");  
    	   // 请求httpRequest
    	   httpRequest.setEntity(httpentity); 
    	   // 取得默认的HttpClient 
    	   HttpClient httpclient = new DefaultHttpClient(); 
    	   // 取得HttpResponse  
    	   HttpResponse httpResponse = httpclient.execute(httpRequest); 
    	   // HttpStatus.SC_OK表示连接成功  
    	   if (httpResponse.getStatusLine().getStatusCode() == HttpStatus.SC_OK) 
    	   {    
    		   // 取得返回的字符串 
    		   String strResult = EntityUtils.toString(httpResponse.getEntity()); 
    		   res=strResult;
    	   } 
    	   else     
    	   {    
    		  
    		   res="失败";
    	   } 
    	   
       }catch  (Exception e)   
       {
    	   e.printStackTrace();
       }
       return res; 

   }
/********************************************************************************************/ 
   /**
    * 调用java类  get方法
    */
    
    public String get_update(){
	   String urlPath="http://******/index1.jsp"+"?type=save&version="+version+"";  
       String realPath=urlPath.replaceAll(" ", "");//把多余的空格替换掉   
       try
       {
    	   if(getRequest(realPath))
           {
        	   //成功
    		   res="成功";
           }
    	   
       }catch  (Exception e)   
       {
    	   res="失败";
       }
       return res; 

   }
   
   
   
   
   /**
    * java类  get方法
    * @return
    */
	
	//get请求，有文件长度大小限制   
    public static boolean getRequest(String urlPath) throws Exception  
    {  
        URL url=new URL(urlPath);  
        HttpURLConnection con=(HttpURLConnection)url.openConnection();  
        con.setRequestMethod("GET");  
        con.setReadTimeout(5*1000);  
        if(con.getResponseCode()==200)  
        {  
            return true;  
        }  
        return false;  
    }  
    
 /********************************************************************************************   
    /**
     * 调用下面java类  Post方法
     * @return
     */
    
    public String post_update(){
 	   String urlPath="http://www.gdhdcy.com/hdleague1/index1.jsp";  
        Map<String,String> map=new HashMap<String,String>();//用集合来做，比字符串拼接来得直观   
        map.put("type", "save");  
        map.put("version", version);  
        try
        {
     	   if(postRequest(urlPath,map))
            {
         	   //成功
     		   res="成功";
            }
     	   
        }catch  (Exception e)   
        {
     	   res="失败";
        }
 	return res; 

    }
    /**
     * java类  post方法
     * @return
     */
    //post请求，无文件长度大小限制   
    public static boolean postRequest(String urlPath,Map<String,String> map) throws Exception  
    {  
        StringBuilder builder=new StringBuilder(); //拼接字符   
        //拿出键值   
        if(map!=null && !map.isEmpty())  
        {  
            for(Map.Entry<String, String> param:map.entrySet())  
            {  
                builder.append(param.getKey()).append('=').append(URLEncoder.encode(param.getValue(), "utf-8")).append('&');  
            }  
            builder.deleteCharAt(builder.length()-1);  
        }  
        //下面的Content-Length: 是这个URL的二进制数据长度   
        byte b[]=builder.toString().getBytes();  
        URL url=new URL(urlPath);  
        HttpURLConnection con=(HttpURLConnection)url.openConnection();  
        con.setRequestMethod("POST");  
        con.setReadTimeout(5*1000);  
        con.setDoOutput(true);//打开向外输出   
        con.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");//内容类型   
        con.setRequestProperty("Content-Length",String.valueOf(b.length));//长度   
        OutputStream outStream=con.getOutputStream();  
        outStream.write(b);//写入数据   
        outStream.flush();//刷新内存   
        outStream.close();  
        //状态码是不成功   
        if(con.getResponseCode()==200)  
        {  
            return true;  
        }  
        return false;   
          
    }  
} </span>