关于HttpURLConnection：Connection timed out: connect 问题

Spring89 2012-04-10 03:34:51



private String getWebData(String strurl) {

        try {

			URL url = new URL(strurl);

			// 打开连接，此处只是创建一个实例，并没有真正的连接

			HttpURLConnection httpCon = (HttpURLConnection) url.openConnection();

			httpCon.setConnectTimeout(30000);

			httpCon.setReadTimeout(30000);

			httpCon.setDoOutput(true);//打开写入属性

			httpCon.setRequestMethod("POST");//设置提交方法  

			

			httpCon.connect();//建立连接

			InputStream inputStream = httpCon.getInputStream();

			InputStreamReader inputReader = new InputStreamReader(inputStream,"utf-8");

			BufferedReader bufferReader = new BufferedReader(inputReader);

			StringBuffer sb = new StringBuffer();

			String inputLine = null;  

			while ((inputLine = bufferReader.readLine()) != null) {   

				sb.append(inputLine+"\n");

			}   

			bufferReader.close();  

			inputReader.close();

			inputStream.close();

			httpCon.disconnect();

			System.out.println(sb.toString().trim());

			return sb.toString();

		} catch (Exception e) {

			// TODO Auto-generated catch block

			e.printStackTrace();

		}

		System.out.println("=======================================================");

		return null;

	}

以上是源代码，异常信息如下：
java.net.ConnectException: Connection timed out: connect
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333)
at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
at java.net.Socket.connect(Socket.java:519)
at sun.net.NetworkClient.doConnect(NetworkClient.java:158)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:394)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:529)
at sun.net.www.http.HttpClient.<init>(HttpClient.java:233)
at sun.net.www.http.HttpClient.New(HttpClient.java:306)
at sun.net.www.http.HttpClient.New(HttpClient.java:323)
at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:837)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:778)
at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:703)
at com.joye.util.UpdateAppData.getWebData(UpdateAppData.java:174)
at com.joye.util.UpdateAppData.getAppDetails(UpdateAppData.java:137)
at com.joye.util.TimerGetData.run(TimerGetData.java:11)
at java.util.TimerThread.mainLoop(Timer.java:512)
at java.util.TimerThread.run(Timer.java:462)

求救：这个连接超时的异常，该如何解决呢？
httpCon.setConnectTimeout(30000);
我已经设置了超时重连的时间啊！

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