把代码发出来

import java.awt.*;
import java.awt.event.*;
import java.io.*;
import java.net.*;
public class Client extends Frame implements ActionListener{
Label label=new Label("交谈");
Panel panel=new Panel();
TextField tf=new TextField(28);
TextArea ta=new TextArea();
Socket client;
InputStream in;
OutputStream out;
public Client() {
super("客户端");
setSize(380,380);
panel.add(label);
panel.add(tf);
tf.addActionListener(this);
add("North",panel);
add("Center",ta);
addWindowFocusListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
// TODO Auto-generated method stub
System.exit(0);
}
});
setVisible(true);
try {
client=new Socket(InetAddress.getLocalHost(), 8081); //因为是在自己的机器上使用所以用InetAddress的静态方法getLocalHost方法得到主机
ta.append("已连接到服务器："+client.getInetAddress().getHostName()+"\n\n");
in=client.getInputStream();
out=client.getOutputStream();
} catch (Exception e) {
// TODO: handle exception
e.printStackTrace();
}
while(true) {
try {
byte[] buf=new byte[256];
in.read(buf);
String str=new String(buf);
ta.append("服务器说："+str);
ta.append("\n");
} catch (Exception e) {
// TODO: handle exception
e.printStackTrace();
}
}
}
@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
try {
String str=tf.getText();
byte[] buf=str.getBytes();
out.write(buf);
tf.setText("");
ta.append("我说："+str);
ta.append("\n");
} catch (Exception e2) {
// TODO: handle exception
e2.printStackTrace();
}
}
public static void main(String[] args) {
// TODO Auto-generated method stub
new Client();
}
}

import java.awt.*;
import java.awt.event.*;
import java.io.*;
import java.net.*;
public class Server extends Frame implements ActionListener{
Label label=new Label("交谈");
Panel panel=new Panel();
TextField tf=new TextField(27);
TextArea ta=new TextArea();
ServerSocket server;
Socket client;
InputStream in;
OutputStream out;
public Server() {
super("服务器");
setSize(380,380);
panel.add(label);
panel.add(tf);
tf.addActionListener(this);
add("North",panel);
add("Center",ta);
addWindowFocusListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
setVisible(true);
try {
server=new ServerSocket(8081); //指定端口号
client=server.accept(); //使用ServerSocket的accept方法得到Socket
ta.append("已连接的客户机："+client.getInetAddress().getHostName()+"\n\n");
in=client.getInputStream();
out=client.getOutputStream();
} catch (Exception e) {
e.printStackTrace();
}
while(true) {
try {
byte[] buf=new byte[256];
in.read(buf);
String str=new String(buf);
ta.append("客户机说："+str);
ta.append("\n");
} catch (Exception e) {
// TODO: handle exception
e.printStackTrace();
}
}
}
public void actionPerformed(ActionEvent e) {
try {
String str=tf.getText();
byte[] buf=str.getBytes();
out.write(buf);
tf.setText("");
ta.append("我说："+str);
ta.append("\n");
} catch (Exception e2) {
// TODO: handle exception
e2.printStackTrace();
}
}
public static void main(String[] arg0) {
new Server();
}
}

这两个模块单独都能运行，可通讯

生成的Javafuwu.jar包不运行。

不运行是指启动不起来还是什么,发一下启动日志

报什么错啦？指令没看出啥问题

等等，用了awt的包吗？你jdk版本是不是11哇，改成8再试试？

我才用的这个启动方式，点击闪亮一下，没有提示就完事了。

用nohup java -jar