April 05
Prof. Ismael H. F. Santos
- ismael@tecgraf.puc-rio.br
2
Implementing a Server
1. Open the Server Socket:
ServerSocket server;
DataOutputStream os;
DataInputStream is;
server = new ServerSocket( PORT );
2. Wait for the Client
Request:
Socket client =
server.accept();
3. Create I/O streams for
communicating to the client
is = new DataInputStream(
client.getInputStream() );
os = new DataOutputStream(
client.getOutputStream() );
4. Perform communication
with client
Receive from client: String line =
is.readLine();
Send to client:
os.writeBytes("Hello\n");
5. Close sockets: client.close();
For multithreaded server:
while(true) {
n i. wait for client requests (step
2 above)
ii. create a thread
with “client” socket as parameter (the thread creates streams (as in step (3)
and does communication as stated
in (4). Remove thread once service is provided.
}