关于HttpURLConnection ：Connection timed out: connect 问题~！！！

Java code

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！

------解决方案--------------------
都没人啊，呵呵！我来了！给点分吧，不过那个贴子上有就行了嘛！