Servlet, change URL parameters

Posted on 2007-11-28
Last Modified: 2013-11-24
I'm connection to a URL in a servlet (check the code attached).

I wonder if there is any way to make multiple connection to the same URL and to pass different request parameters ... without creating a new connection.

In my example, I want to change what I write in osw.write ....

private static void connect (boolean GET_METHOD) throws Exception


        String parameters="firstName=Paz";

        String urlString="http://localhost:8080/Research/SimpleServlet?";


        if (GET_METHOD)

            urlString += parameters;



        URL url = new URL (urlString);

        HttpURLConnection conn = (HttpURLConnection) url.openConnection();

        conn.setAllowUserInteraction (true);



        if (!GET_METHOD)


            OutputStream osw = (OutputStream) conn.getOutputStream();

            osw.write (parameters.getBytes());


        BufferedReader respContent = new BufferedReader(new InputStreamReader(conn.getInputStream()));

        PrintWriter display = new PrintWriter(System.out);

        String respLine;

        while( (respLine = respContent.readLine()) != null)








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Question by:kmapper
1 Comment
LVL 19

Accepted Solution

Kuldeepchaturvedi earned 500 total points
ID: 20415404
HTTP Protocol is a stateless protocol. so once the communication is ended. it is ended. if you try to write again on the same streams, you will get illegalstateexception.

if you want to send something else on a second run, you will have to start from making a new connection.

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