Common debugging problems in Android Eclipseproject development (2) The solution to android.os.NetworkOnMainThreadException exception

The solution to the android.os.NetworkOnMainThreadException exception.

At the beginning, the method of opening the connection of HttpURLConnection nection was placed in the UI thread, which may not be thread-safe, and the request of this method needs to wait, so this exception was thrown, and then the HttpURLConnection opened by the child thread, Everything is fine. Just start the child thread in the main thread.

Child thread exploits URL

problem solved. Paste a piece of code below

				String file1 = SERVER_PATH;
				URL url = new URL(file1);
				HttpURLConnection httpconn = (HttpURLConnection) url
						.openConnection();
				int responseCode = httpconn.getResponseCode();
				if (responseCode != HttpURLConnection.HTTP_OK) {
					Log.d(MP3, file1 + " server故障");
					mainHandler.sendEmptyMessage(NET_SERVER_ERROR);
				}

The link is normal, after returning 200. You can open the stream to accept bytes.

				InputStream is = httpconn.getInputStream();
				BufferedReader bfr = new BufferedReader(new InputStreamReader(is));

...the latter will be omitted