java编程题求答案

Question

9、编写一个网络通信程序，要求：编写服务器端程序（客户端程序不做要求，可以做为加分）。
（1）端口号：服务器端、客户端均采用3600；
（2）服务器端的IP地址为192.168.168.10；
（3）当“客户端”输入“QUIT”后，服务器端将自动关闭；
（4）服务器端将接收到的数据返回客户端。

Answer 1

原来写的一个socket 例子，你可以做参考
package com.test;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

public class Main {
private static final int PORT = 3600;
private List<Socket> mList = new ArrayList<Socket>();
private ServerSocket server = null;
private ExecutorService mExecutorService = null; // thread pool

public static void main(String[] args) {
new Main();
}

public Main() {
try {
server = new ServerSocket(PORT);
mExecutorService = Executors.newCachedThreadPool(); // create a
// thread pool
System.out.print("server start ...");
Socket client = null;
while (true) {
client = server.accept();
mList.add(client);
mExecutorService.execute(new Service(client)); // start a new
// thread to
// handle the
// connection
}
} catch (Exception e) {
e.printStackTrace();
}
}

class Service implements Runnable {
private Socket socket;
private BufferedReader in = null;
private String msg = "";

public Service(Socket socket) {
this.socket = socket;
try {
in = new BufferedReader(new InputStreamReader(
socket.getInputStream()));
msg = "user" + this.socket.getInetAddress() + "come toal:"
+ mList.size();
this.sendmsg();
} catch (IOException e) {
e.printStackTrace();
}
}

@Override
public void run() {
// TODO Auto-generated method stub
try {
while (true) {
if ((msg = in.readLine()) != null) {
if (msg.equals("exit")) {
System.out.println("ssssssss");
mList.remove(socket);
in.close();
msg = "user:" + socket.getInetAddress()
+ "exit total:" + mList.size();
socket.close();
this.sendmsg();
break;
} else {
msg = socket.getInetAddress() + ":" + msg;
this.sendmsg();
}
}
}
} catch (Exception e) {
e.printStackTrace();
}

}

public void sendmsg() {
System.out.println(msg);
int num = mList.size();
for (int index = 0; index < num; index++) {
Socket mSocket = mList.get(index);
PrintWriter pout = null;
try {
pout = new PrintWriter(new BufferedWriter(
new OutputStreamWriter(mSocket.getOutputStream())),
true);
pout.println(msg);
} catch (IOException e) {
e.printStackTrace();
}
}
}

}
}

Answer 2

socket 和serverSocket最简单的应用而已，学学吧，骚年！半小时就学会了。。。

Answer 3

google 一下 socket的视频看看就行了

Answer 4

作业吧？连这个都不会，还搞什么啊。追问

术业有专攻，你懂吗？