How to make http connection using java

[shinestar]

Hi,

I have a Tomcat server running at port 8080 (thru jbuilder). I have written the following client code:

BufferedReader in = new BufferedReader( new InputStreamReader( System.in ) );
message = messageText.getText();

URL u = new URL ( "http://localhost:8080/Servlet1?Message=" + message );
HttpURLConnection con = (HttpURLConnection) u.openConnection ();
con.setDoInput(true);
con.setRequestMethod("GET");
con.connect();
con.getResponseMessage();
javax.swing.JOptionPane.showMessageDialog ( null, "Message Sent" );
con.disconnect ();

Basically, the server just has to read the parameter 'message' and store it in a database. When i type this exact url in the browser, it works. But when i run the above code in an application of my own, I get the following exception:


java.io.FileNotFoundException <followed by the complete url>

However, this message doesn't come if i remove the 'con.getResponseMessage();' line from the code. And whether or not this line is there, nothing gets written on the database!!!!

if the url works from the browser, how come i get this message. Please tell me how can i make my application work?

[ray326]

Off hand I don't see you actually making the request. Use a known good URL like http://google.com and see if you do any better. Also check the server's access log and see if you're really talking to it.

[devenkhatri]

Try using like this

URL u = new URL ( "http://localhost:8080/Servlet1?Message=" + message );
URLConnection urlCon = servletUrl.openConnection();
urlCon.setDoInput(true);
con.setRequestMethod("GET");
ObjectInputStream in = new ObjectInputStream(urlCon.getInputStream());
in.close();
urlCon = null;