我把一个项目的几个功能分开编写，在整合时发现了以下问题，希望有大佬能帮帮忙！非常感谢每个朋友提出的一些意见，我都会去尝试！问题如下：
登录成功后，会跳转至一个功能界面，点击功能键后则会有相应的功能界面
问题：功能界面能打开“服务器”的功能窗口，但是里面的东西显示不出来，而且整个程序就死掉了（其他功能都能正常运行，对应的客户端也可以正常运行）
1、单独打开功能界面可以正常运行，如下图
2、功能选择界面入下图
3、选择“聊天室开启”按钮后（此时整个程序都操作不了了）
跳转的代码如下
chatButton.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
new Servertest();
}
});
服务器的完整代码如下
public class Servertest extends JFrame{
private static final int PORT = 8888;
private JTextArea Ta = new JTextArea();
private JTextField tfField = new JTextField(20);
private JButton sendButton = new JButton("发送");
private JPanel btnTool = new JPanel();
private JButton startBtn = new JButton("启动");
private JButton stopBtn = new JButton("停止");
private boolean isStart = false;
private static ServerSocket ss = null;
private Socket s = null;
private DataInputStream dis = null;
private DataOutputStream dos = null;
private ArrayList<ClientConn> cclist = new ArrayList<ClientConn>();
public Servertest() {
this.setTitle("服务器端");
this.add(Ta,BorderLayout.CENTER);
Ta.setEditable(false);
Ta.setOpaque(true);
btnTool.add(tfField);
btnTool.add(sendButton);
btnTool.add(startBtn);
btnTool.add(stopBtn);
this.add(btnTool,BorderLayout.SOUTH);
this.setBounds(0,0,500,500);
Ta.append("请启动服务器"+"\n");
this.addWindowListener(new WindowAdapter() {
@Override
public void windowClosing(WindowEvent e) {
isStart = false;
try {
if(ss != null)
ss.close();
Ta.append("服务器端已关闭。。。");
System.exit(0);
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
}
});
startBtn.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
try {
if (ss == null) {
ss = new ServerSocket(PORT);
}
isStart = true;
Ta.append("服务器已启动"+"\n");
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
}
});
sendButton.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
String string = tfField.getText();
sendmessage(string);
}
});
this.setVisible(true);
this.setDefaultCloseOperation(DISPOSE_ON_CLOSE);
System.out.println("完成1");
try {
start();
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
}
public static void main(String[] args) {
// TODO Auto-generated method stub
new Servertest();
}
public void sendmessage(String string) {
try {
dos = new DataOutputStream(s.getOutputStream());
tfField.setText("");
Ta.append("我:"+ string + "\n");
//遍历cclist 客户端上接收信息是多线程的接
Iterator<ClientConn> it = cclist.iterator();
while(it.hasNext()) {
ClientConn o = it.next();
System.out.println("发送至客户端" + o + ":" + string);
o.send(ss.getInetAddress()+string+"\n");
}
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
//服务器的启动
public void start() throws IOException{
ss = new ServerSocket(PORT);
isStart = true;
//多个连接
while (isStart) {
//无法整合的问题所在
s = ss.accept();
cclist.add(new ClientConn(s));
Ta.append("一个客户端连接服务器：" + s.getInetAddress() + "/" + s.getPort()+"\n");
}
}
//服务器上的连接对象
class ClientConn implements Runnable{
Socket s = null;
public ClientConn(Socket s) {
this.s = s;
(new Thread(this)).start();
}
public void run() {
try {
DataInputStream dis = new DataInputStream(s.getInputStream());
//循环接受
while (isStart) {
//utf为原子操作
String string = dis.readUTF();
Ta.append(s.getInetAddress() + "|" + s.getPort() + "说：" + string + "\n");
String strsend = (s.getInetAddress() + "|" + s.getPort() + "说：" + string + "\n");
//遍历cclist 客户端上接收信息是多线程的接
Iterator<ClientConn> it = cclist.iterator();
while(it.hasNext()) {
ClientConn o = it.next();
o.send(strsend);
}
}
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
//给每个用户发数据
public void send(String str) {
try {
DataOutputStream dos = new DataOutputStream(this.s.getOutputStream());
dos.writeUTF(str);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
