socket listning

[naitsabes85]

Hello folks,
I made this "function" to listen for data from a visualbasic app.

public static void ListenConnection(int port)
 try
     {
     ServerSocket ss=new ServerSocket(port);
     Socket sa=ss.accept();
     System.out.println("Client Accepted");
 }catch(Exception e){System.out.println(e);}

I got a problem printing out the data is just received, do i need to make some sort of a declare of the socket?

//  BufferedReader br=new BufferedReader(new InputStreamReader(sa.getInputStream()));
//  System.out.println(br.readLine());

Thanks,
Nait

[System_Error]

What do you mean a problem? Are you recieving an error? How are you sending data?(with a printwriter?)

The only thing I can think of is you are not reading everything, except for one line:

String inputLine;
while ((inputLine = br.readLine()) != null)
{
   System.out.println(inputLine + "\n");
}

Maybe that's it?

[naitsabes85]

Hi again,
All i want is to get all received data printed in the java-consol.
But if i use "catch(Exception" it will only print out "java.lang.NullPointerException" in the consol.

I don't know much about java, but must i close the socket each time it accepted new data?

private Socket sa;

public static void ListenConnection(int port)
{
 try
     {
     ServerSocket ss=new ServerSocket(port);
     Socket sa=ss.accept();
     System.out.println("Client Accepted");
//BufferedReader sa=new BufferedReader(new InputStreamReader(sb.getInputStream()));
 }catch(Exception e){System.out.println(e);}}

try
{
BufferedReader br=new BufferedReader(new InputStreamReader(sa.getInputStream()));
String inputLine;
while ((inputLine =br.readLine()) != null)
{
   System.out.println(inputLine + "\n");
}
 }catch(Exception e){System.out.println(e);}

Thanks,
Naitsabes

[System_Error]

Where is the code that sends the data? You've got code listening and taking in what was sent, but I need to see how you send the data. As for closing it, you don't need to close it, but you can try to flush() the stream which is probably a good idea.