It is usually a good idea to use the headers for metadata and the body for the data that is used by the business logic. Some points to consider: 1) If the data is sent via HTTP instead of HTTPS, the proxy servers can modify the headers. 2) If you are using the REST protocol … Read more
The API for URLConnection and HttpURLConnection are (for better or worse) designed for the user to follow a very specific sequence of events: Set Request Properties (Optional) getOutputStream(), write to the stream, close the stream getInputStream(), read from the stream, close the stream If your request is a POST or PUT, you need the optional … Read more
When you do this, while((inputLine = buff_read.readLine())!= null){ System.out.println(inputLine); } You consume everything in instream, so instream is empty. Now when try to do this, Document doc = builder.parse(instream); The parsing will fail, because you have passed it an empty stream.
Do you need output streaming? The HttpURLConnection most definitely supports authentication with the Authenticator class, see: Http Authentication. Update: In case the Authenticator is not an option, you can manually do HTTP basic authentication by adding an extra header to your HTTP request. Try the following code (untested): String userPassword = username + “:” + … Read more
You don’t. You close this one and create a new one. It does TCP connection pooling to implement HTTP keepalive behind the scenes.
I would like to suggest a completely different approach to your problem. Instead of copying cookies from one place to another (manual sync), let’s make HttpURLConnection and WebViews use the same cookie storage. This completely eliminates the need for sync. Any cookie updated in any one of them, will be immediately and automatically reflected in … Read more
I found out the reason. First of all, to all who aren’t aware of what this error means (I sure wasn’t): This exception is thrown if the server replies with a 401. Very intuitive, considering that it was thrown in getResponseCode() (i.o.w. you are never able to check for 401s yourself, but have to catch … Read more