package server;

import java.awt.*;
import java.io.*;
import java.net.*;
import java.util.*;
import java.awt.event.*;

import javax.swing.*;

public class Server extends JFrame {

 JTextArea textShow;
 JButton start;
 Vector socketsss = new Vector();//這里用到了變長對(duì)象數(shù)組，用來存儲(chǔ)來自客戶端的socket對(duì)象
 ServerSocket server = null;
 Socket clients;

 Server() { // 服務(wù)器的構(gòu)造函數(shù)，并且初始化
 init();
 setVisible(true);
 setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE);
 setBounds(450, 150, 340, 455);
 setTitle("好好學(xué)習(xí)天天向上聊天室服務(wù)器");
 setResizable(false);
 }

 void init() { // 設(shè)置布局和事件監(jiān)視器
 setLayout(new FlowLayout());
 getContentPane().setBackground(new Color(20, 85, 237));
 textShow = new JTextArea(21, 29);
 textShow.setBackground(new Color(45, 210, 209));
 start = new JButton("       啟動(dòng)服務(wù)器       ");
 start.setBackground(new Color(236, 134, 21));
 add(start);
 add(new JScrollPane(textShow));
 textShow.setEditable(false);
 start.addActionListener(new ActionListener() {
  public void actionPerformed(ActionEvent e) {  //在這里啟動(dòng)監(jiān)聽的線程
  Listen listen = new Listen();
  Thread go = new Thread(listen);
  go.start();
  }
 });

 addWindowListener(new WindowAdapter() { // 響應(yīng)關(guān)閉按鈕功能
  public void windowClosing(WindowEvent e) {
  int option = JOptionPane
   .showConfirmDialog(null, "親愛的你真的要離開聊天室么？",
    " 好好學(xué)習(xí)天天向上聊天室", JOptionPane.YES_NO_OPTION,
    JOptionPane.QUESTION_MESSAGE);
  if (option == JOptionPane.YES_OPTION)
   System.exit(0);

  }
 });

 } // init()結(jié)束

 class ServerThread extends Thread { // 服務(wù)器消息處理的線程
 Socket socket;
 DataOutputStream out = null;
 DataInputStream in = null;
 String s = null;
 Vector sockets = new Vector();
 int j = 0;

 ServerThread(Socket t, Vector socketss) {
  socket = t;
  sockets = socketss;
  try { 
  in = new DataInputStream(socket.getInputStream());
  } catch (IOException e) {
  }
 }

 public void run() {
  while (true) {
  try {
   String r = in.readUTF();// 堵塞狀態(tài)，除非讀取到信息
   for (int j = 0; j < sockets.size(); j++) {
   out = new DataOutputStream(
    ((Socket) sockets.get(j)).getOutputStream()); // 對(duì)于每個(gè)數(shù)組內(nèi)的socket對(duì)象都建立輸出流
   out.writeUTF(r);
   }
  } catch (IOException e) {
   textShow.append("有一個(gè)逗比離開了\n");
   return;
  }
  }
 }
 }

 class Listen implements Runnable { // 服務(wù)器監(jiān)聽線程
 ServerSocket server;
 Socket clients;

 public void run() {
  while (true) {
  try {
   server = new ServerSocket(8888);
   textShow.append(new java.text.SimpleDateFormat(
    "yy-MM-dd HH:mm:ss").format(new Date())
    + "服務(wù)器已開啟\n");
  } catch (IOException e1) {
   textShow.append("正在監(jiān)聽\n"); // ServerSocket對(duì)象不能重復(fù)創(chuàng)建
  }
  try {
   textShow.append(new java.text.SimpleDateFormat(
    "yy-MM-dd HH:mm:ss").format(new Date())
    + " 等待用戶連接......\n");

   clients = server.accept();
   socketsss.add(clients);
   ServerThread handlers = new ServerThread(clients, socketsss);
   handlers.start(); // 為每個(gè)用戶創(chuàng)建單獨(dú)的消息處理線程
   textShow.append(new java.text.SimpleDateFormat(
    "yy-MM-dd HH:mm:ss").format(new Date())
    + "有用戶連接,用戶的地址:" + clients.getInetAddress() + "\n");
  } catch (IOException e1) {
   textShow.append(new java.text.SimpleDateFormat(
    "yy-MM-dd HH:mm:ss").format(new Date())
    + "正在等待逗比來臨......\n");
  }
  }
 }
 }

 public static void main(String args[]) {
 Server server = new Server();
 }
}