[置顶] android网络通讯之HttpClient4不指定参数名发送Post

         在HttpClient4之前都是通过List<NameValuePair>键值对的形式来向服务器传递参数 ，在4.0版本中在加入了不指定参数名发送数据的形式，利用StringEntity来完成，相当于向一个流写入请求。

        HttpClient4中采用ThreadSafeClientConnManager来保证线程的安全，优于2.0的MultiThreadedHttpConnectionManager类。另外Apache官方强烈推荐只使用一个HttpClient的实例，所以我们可以将以下demo方法写成单例模式。可以参考我的博文http://blog.csdn.net/caicongyang/article/details/9498437

demo将使用StringEntity来完成不指定参数名发送Post，已经采用ThreadSafeClientConnManager来保证线程的安全

 

   /** 发送报文到GPRS网关 */

   public String sendToHttpClientGprs(String url,String content) {

	BufferedReader reader = null;

	StringBuffer stringBuffer = null;

	   HttpParams httpParams = new BasicHttpParams();     

        // 设置超时

        ConnManagerParams.setTimeout(httpParams, 5*1000);

        HttpConnectionParams.setConnectionTimeout(httpParams, 5*1000);  

        HttpConnectionParams.setSoTimeout(httpParams, 5*1000);   

          

        // 多线程最大连接数  

        ConnManagerParams.setMaxConnectionsPerRoute(httpParams, new ConnPerRouteBean(5));    

        // 多线程总连接数  

        ConnManagerParams.setMaxTotalConnections(httpParams, 10);   

        // 设置异常处理机制

        HttpProtocolParams.setUseExpectContinue(httpParams, true);  

        // 设置是否检查旧连接  

        HttpConnectionParams.setStaleCheckingEnabled(httpParams, false);  

        // 设置版本

        HttpProtocolParams.setVersion(httpParams, HttpVersion.HTTP_1_1);   

	// 设置编码

        HttpProtocolParams.setContentCharset(httpParams, HTTP.UTF_8);   

        // 设置重定向  

        HttpClientParams.setRedirecting(httpParams, false);  

          

        // 设置userAgent 

        String userAgent = "Mozilla/5.0 (Windows; U; Windows NT 5.1; zh-CN; rv:1.9.2) Gecko/20100115 Firefox/3.6";  

        HttpProtocolParams.setUserAgent(httpParams, userAgent);       

          

        //设置是否延迟发送

        HttpConnectionParams.setTcpNoDelay(httpParams, true);   

          //设置缓存大小

        HttpConnectionParams.setSocketBufferSize(httpParams, DEFAULT_SOCKET_BUFFER_SIZE);    

          

        // 支持http与https

        SchemeRegistry schemeRegistry = new SchemeRegistry();    

        schemeRegistry.register(new Scheme("http", PlainSocketFactory.getSocketFactory(), 80));    

        schemeRegistry.register(new Scheme("https", SSLSocketFactory.getSocketFactory(), 443));  

  

		//ThreadSafeClientConnManager线程安全管理类

        ClientConnectionManager manager = new ThreadSafeClientConnManager(httpParams, schemeRegistry);    

        HttpClient   client = new DefaultHttpClient(manager, httpParams);  

		//post请求

		HttpPost httppost =  new HttpPost(path);

		httppost.setHeader("connection", "Keep-Alive");

		httppost.setHeader("Content-Type", "text/plain");

		try {

			//直接传入发送内容，不指定参数名

			StringEntity myEntity = new StringEntity(content, "UTF-8");

			httppost.setEntity(myEntity); 

			// 发送请求

			HttpResponse response = client.execute(httppost);

			Log.i("ResponseCode", response.getStatusLine().getStatusCode() + "");

			// 请求成功

			if (response.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {

				reader = new BufferedReader(new InputStreamReader(response.getEntity().getContent()));

				stringBuffer = new StringBuffer();

				String line = "";

				while ((line = reader.readLine()) != null) {

					stringBuffer.append(line);

				}

			}

		} catch (Exception e) {

			e.printStackTrace();

		}  finally {

			try {

				// 关闭流

				if (null != reader) {

					reader.close();

					reader = null;

				}

			} catch (IOException e) {

				e.printStackTrace();

			}

		}

		if (null == stringBuffer) {

			return "-1";

		} else {

			return stringBuffer.toString();

		}

	}