エコーサーバー
RFC862に準拠
import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.net.ServerSocket; import java.net.Socket; public class echo_server { public final static int BUFSIZE = 32; public static void main(String[] args) throws IOException { { byte buffer[] = new byte[BUFSIZE]; int recvied_message_size; ServerSocket server_socket = new ServerSocket(7); while (true) { Socket client_socket = server_socket.accept(); InputStream in = client_socket.getInputStream(); OutputStream out = client_socket.getOutputStream(); while ((recvied_message_size = in.read(buffer)) != -1) { out.write(buffer, 0, recvied_message_size); } client_socket.close(); } } } }
実行結果
$ telnet 127.0.0.1 7
Trying 127.0.0.1...
Connected to 127.0.0.1.
Escape character is '^]'.
this is test.
this is test.
natsumi
natsumi
reika
reika
aya
aya
tae
tae