Java simple code: java.net.SocketException: Unexpected end of file from server

Question

I wrote some simple code in Java, the method should connect to the website and return the BufferedReader.

private BufferedReader getConnection(String url_a)          


        

Answer 1

I got this exception too. MY error code is below

        HttpURLConnection connection = (HttpURLConnection) url.openConnection();
    connection.setRequestMethod(requestMethod);
        connection.setRequestProperty("Content-type", "JSON");

I found "Content-type" should not be "JSON",is wrong! I solved this exception by update this line to below

        connection.setRequestProperty("Content-type", "application/json");

you can check up your "Content-type"

Answer 2

I do get this error when I do not set the Authentication header or I set wrong credentials.