Android网络访问超时

HttpGet httpGet = new HttpGet(url);
 HttpParams httpParameters = new BasicHttpParams();
  // Set the timeout in milliseconds until a connection is established.
  int timeoutConnection = 3000;
 HttpConnectionParams.setConnectionTimeout(httpParameters, timeoutConnection);
  // Set the default socket timeout (SO_TIMEOUT) 
 // in milliseconds which is the timeout for waiting for data.
 int timeoutSocket = 5000;
 HttpConnectionParams.setSoTimeout(httpParameters, timeoutSocket);

 DefaultHttpClient httpClient = new DefaultHttpClient(httpParameters);
 HttpResponse response = httpClient.execute(httpGet);