Question

需要JAVA编写一个TCP用户/服务器聊天程序

需要JAVA编写一个TCP用户/服务器聊天程序，必须提供一个简单的GUI，当client 连接到server时候，client 发出：HI,my server. 当用户发出 ：bye时候， server回复 bye，然后断开连接。 还要允许用户可以发送消息到server端, server只需要返回用户的信息就可以了。最后提供一个 button断开连接。
所有分都给了，希望大神帮下忙，实在是不会了~~急求~~
按照上述的要求，用socket实现这样一个程序。 有会写的大神吗。。谢谢

Answer 1

可以用socket实现

追问

是啊，就是用socket。我意思是要代码~~

追答

//服务器端代码
import java.net.*;
import java.io.*;

public class EchoServer {
private int port = 7890;

private ServerSocket serverSocket;

public EchoServer() throws IOException {
serverSocket = new ServerSocket(port);
System.out.println("服务器已启动！");
}

public String echo(String msg) {
return "echo:" + msg;
}

private PrintWriter getWriter(Socket socket) throws IOException {
OutputStream socketOut = socket.getOutputStream();
return new PrintWriter(socketOut, true);
}

private BufferedReader getReader(Socket socket) throws IOException {
InputStream socketIn = socket.getInputStream();
return new BufferedReader(new InputStreamReader(socketIn));
}

public void server() {
while (true) {
Socket socket = null;
try {
socket = serverSocket.accept();
System.out.println("New connection accepted"
+ socket.getInetAddress() + ":" + socket.getPort());
BufferedReader br = getReader(socket);
PrintWriter pw = getWriter(socket);

String msg = null;
while ((msg = br.readLine()) != null) {
System.out.println(msg);
pw.println(echo(msg));
if (msg.equals("bye"))
break;
}
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
if (socket != null)
socket.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}

public static void main(String[] args) throws IOException {
new EchoServer().server();
}
}

追问

用户端呢，谢谢。~~ 请看下我上面的要求，我需要按上述要求的一个简单的 有用户图形界面的 聊天的小程序

追答

//以下是客户端代码，界面可能你要自己写了，我这边没有开发环境，不方便写。
import java.io.*;
import java.net.*;

public class EchoClient {
private String host = "127.0.0.1";

private int port = 7890;

private Socket socket;

public EchoClient() throws IOException {
socket = new Socket(host, port);
}

private PrintWriter getWriter(Socket socket) throws IOException {
OutputStream socketOut = socket.getOutputStream();
return new PrintWriter(socketOut, true);
}

private BufferedReader getReader(Socket socket) throws IOException {
InputStream socketIn = socket.getInputStream();
return new BufferedReader(new InputStreamReader(socketIn));
}

public void talk() throws IOException {
try {
BufferedReader br = getReader(socket);
PrintWriter pw = getWriter(socket);
BufferedReader localReader = new BufferedReader(
new InputStreamReader(System.in));
String msg = null;
while ((msg = localReader.readLine()) != null) {
pw.println(msg);
System.out.println(br.readLine());
if (msg.equals("bye"))
break;
}
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
if (socket != null)
socket.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}

public static void main(String[] args) throws IOException {
new EchoClient().talk();
}
}

//以下是客户端代码，界面可能你要自己写了，我这边没有开发环境，不方便写。
import java.io.*;
import java.net.*;

public class EchoClient {
private String host = "127.0.0.1";

private int port = 7890;

private Socket socket;

public EchoClient() throws IOException {
socket = new Socket(host, port);
}

private PrintWriter getWriter(Socket socket) throws IOException {
OutputStream socketOut = socket.getOutputStream();
return new PrintWriter(socketOut, true);
}

private BufferedReader getReader(Socket socket) throws IOException {
InputStream socketIn = socket.getInputStream();
return new BufferedReader(new InputStreamReader(socketIn));
}

public void talk() throws IOException {
try {
BufferedReader br = getReader(socket);
PrintWriter pw = getWriter(socket);
BufferedReader localReader = new BufferedReader(
new InputStreamReader(System.in));
String msg = null;
while ((msg = localReader.readLine()) != null) {
pw.println(msg);
System.out.println(br.readLine());
if (msg.equals("bye"))
break;
}
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
if (socket != null)
socket.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}

public static void main(String[] args) throws IOException {
new EchoClient().talk();
}
}

Answer 2

以前做的大作业，刚好是这个，找一找在上传一下哈。

追问

好的，好的。谢谢