-
Notifications
You must be signed in to change notification settings - Fork 0
/
TCPClientEcho.java
57 lines (48 loc) · 1.66 KB
/
TCPClientEcho.java
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.Socket;
import java.net.UnknownHostException;
public class TCPClientEcho {
public static void main(String args[]) throws IOException {
// System.setProperty("line.separator", "\r\n"); // Mac users only
String server_host_address = "172.21.48.172"; // IP: 127.0.0.1 loop back interface
int port_on_server = 20009;
Socket socket = null;
PrintWriter out = null;
BufferedReader in = null;
// Open TCP connection
try {
socket = new Socket(server_host_address, port_on_server);
out = new PrintWriter(socket.getOutputStream(), true);
in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
} catch (UnknownHostException e) {
System.out.println("Unknown host");
System.exit(-1);
} catch (IOException e) {
System.out.println("No I/O");
System.exit(-1);
}
// Communicate
try {
out.println("s20946");
out.println("172.23.129.82:5555");
String line;
line = in.readLine();
if (line != null) {
System.out.println(line);
}
} catch (IOException e) {
System.out.println("Error during communication");
System.exit(-1);
}
// Close TCP connection
try {
socket.close();
} catch (IOException e) {
System.out.println("Cannot close the socket");
System.exit(-1);
}
}
}