URL Connection & POST - java hangs

Question

Im trying to send Query String to third party application. Until now I used to send in form of query string (GET). Now i intend use POST Method.
Following is my piece of skeletal code
String urlString = "abc" ;
URLConnection conn;
InputStream urlInputStream = null;
String urlString1 = "age=23;salary=2000";
try {
urlString1 = "http://ggg:8080/ps" + urlString ;
URL url = new URL(urlString1);
conn = url.openConnection();
System.out.println("1");
conn.setRequestProperty("Content-length", "9056"); // If I dont set this line, Im getting HTTP 411 //Response Code. I have arbritarily set 9056
System.out.println("2");
((HttpURLConnection)conn).setRequestMethod( "POST");
System.out.println("3");
System.out.println("connected");
urlInputStream = conn.getInputStream(); ---> hanging
System.out.println("4");
Output - Im getting 1, 2 and 3. But program is hanging at when it tries to getInputStream(). Im forced to quit .
Need help on this.

Answer 1

Here are some elements that may help you :
If you use the POST method, don't write the arguments in the URL (this is only for the GET method).
You should just open the URL, and write the POST args with an OutputStream .
urlString1 = "http://ggg:8080/ps" ;
Then, open an OutputStream with something like that :
PrintWriter out = new PrintWriter(new InputStreamWriter(conn.getOutputstrem()) ;
and write the args :
out.println("arg1=10&arg2=30") ;