簡単なsocketソースコード

2014年1月29日

client側
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.Socket;

public class MyClient {
public static void main(String[] args) throws Exception {
Socket socket = new Socket(“localhost", 10000);
BufferedReader in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
PrintWriter out = new PrintWriter(socket.getOutputStream());
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));

while (true) {
String msg = reader.readLine();
out.println(msg);
out.flush();
if (msg.equals(“bye")) {
break;
}
System.out.println(in.readLine());
}
socket.close();
}
}

server側：
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;

public class MyServer {
public static void main(String[] args) throws IOException {
ServerSocket server = new ServerSocket(10000);

while (true) {
Socket socket = server.accept();
invoke(socket);
}
}

private static void invoke(final Socket client) throws IOException {
new Thread(new Runnable() {
public void run() {
BufferedReader in = null;
PrintWriter out = null;
try {
in = new BufferedReader(new InputStreamReader(client.getInputStream()));
out = new PrintWriter(client.getOutputStream());

while (true) {
String msg = in.readLine();
System.out.println(msg);
out.println(“Server received " + msg);
out.flush();
if (msg.equals(“bye")) {
break;
}
}
} catch(IOException ex) {
ex.printStackTrace();
} finally {
try {
in.close();
} catch (Exception e) {}
try {
out.close();
} catch (Exception e) {}
try {
client.close();
} catch (Exception e) {}
}
}
}).start();
}
}