Question

求大神指点，一个java小程序，做一个聊天工具，代码写出来了，没错但是就是运行不了，怎么办？

一下为代码
package 服务器端;

import javax.swing.*;
import java.io.*;
import java.net.*;
import java.awt.event.*;

public class fuwuqi extends JFrame implements ActionListener
{
JTextArea jta=null;
JButton jb=null;
JTextField jtf=null;
JPanel jp=null;
JScrollPane jsp=null;
PrintWriter pw=null;

public static void main(String[] args)
{
fuwuqi l1331=new fuwuqi();
}
public fuwuqi()
{
jta=new JTextArea();
jb=new JButton("发送");
jb.addActionListener(this);
jtf=new JTextField(20);
jp=new JPanel(); jp.add(jtf); jp.add(jb);
jsp=new JScrollPane(jta);
this.add(jsp);
this.add(jp,"north");

this.setTitle("服务器端");
this.setSize(350,250);
this.setLocation(300,200);
this.setResizable(false);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.setVisible(true);

try{
ServerSocket ss=new ServerSocket(9165);
Socket s=ss.accept();
InputStreamReader isr=new InputStreamReader(s.getInputStream());

BufferedReader br=new BufferedReader(isr);
pw=new PrintWriter(s.getOutputStream(),true);
while(true)
{
String xinxi=br.readLine();
jta.append("客户端对我说： "+xinxi+"\r\n");//打印出来

}

}catch (Exception e){}

}
public void actionPerformed(ActionEvent e)
{
if(e.getSource()==jb)
{
String xinxi=jtf.getText();
jta.append("我对客户端说: "+xinxi+"\r\n");

pw.println(xinxi);
jtf.setText("");}
}
}
}

Answer 1

给个简单的客户端的例子，lz对比自己的码看看有什么出入 (注意：ClientHandler是inner class）
package chap15;
import java.io.*;
import java.net.*;
import java.util.*;

public class VerySimpleChatServer
{
ArrayList clientOutputStreams;

public class ClientHandler implements Runnable {
BufferedReader reader;
Socket sock;

public ClientHandler(Socket clientSOcket) {
try {
sock = clientSOcket;
InputStreamReader isReader = new InputStreamReader(sock.getInputStream());
reader = new BufferedReader(isReader);

} catch (Exception ex) { ex.printStackTrace(); }
}

public void run() {
String message;
try {
while ((message = reader.readLine()) != null) {
System.out.println("read " + message);
tellEveryone(message);
}
} catch (Exception ex) { ex.printStackTrace(); }
}
}

public static void main(String[] args) {
new VerySimpleChatServer().go();
}

public void go() {
clientOutputStreams = new ArrayList();
try {
ServerSocket serverSock = new ServerSocket(5000);
while(true) {
Socket clientSocket = serverSock.accept();
PrintWriter writer = new PrintWriter(clientSocket.getOutputStream());
clientOutputStreams.add(writer);

Thread t = new Thread(new ClientHandler(clientSocket));
t.start();
System.out.println("got a connection");
}
} catch (Exception ex) { ex.printStackTrace(); }
}

public void tellEveryone(String message) {
Iterator it = clientOutputStreams.iterator();
while (it.hasNext()) {
try {
PrintWriter writer = (PrintWriter) it.next();
writer.println(message);
writer.flush();
} catch (Exception ex) { ex.printStackTrace(); }
}
}
}

Answer 2

package 服务器端;
是什么意思，中文包？

Answer 3

客户端的代码呢