package User;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.Socket;

/**
 * 
 * @author lannooo
 *
 */
public class User {
 private String name;
 private long id;
 private long roomId;
 private Socket socket;
 private BufferedReader br;
 private PrintWriter pw;

 /**
  * 
  * @param name: 設(shè)置user的姓名
  * @param id：設(shè)置user的id
  * @param socket:保存用戶(hù)連接的socket
  * @throws IOException
  */
 public User(String name, long id, final Socket socket) throws IOException {
  this.name=name;
  this.id=id;
  this.socket=socket;
  this.br=new BufferedReader(new InputStreamReader(
    socket.getInputStream()));
  this.pw=new PrintWriter(socket.getOutputStream());

 }

 /**
  * 獲得該用戶(hù)的id
  * @return id
  */
 public long getId() {
  return id;
 }

 /**
  * 設(shè)置該用戶(hù)的id
  * @param id 新的id
  */
 public void setId(long id) {
  this.id = id;
 }

 /**
  * 獲得用戶(hù)當(dāng)前所在的房間號(hào)
  * @return roomId
  */
 public long getRoomId() {
  return roomId;
 }

 /**
  * 設(shè)置當(dāng)前用戶(hù)的所在的房間號(hào)
  * @param roomId
  */
 public void setRoomId(long roomId) {
  this.roomId = roomId;
 }

 /**
  * 設(shè)置當(dāng)前用戶(hù)在聊天室中的昵稱(chēng)
  * @param name
  */
 public void setName(String name) {
  this.name = name;
 }

 /**
  * 返回當(dāng)前用戶(hù)在房間中的昵稱(chēng)
  * @return
  */
 public String getName() {
  return name;
 }

 /**
  * 返回當(dāng)前用戶(hù)連接的socket實(shí)例
  * @return
  */
 public Socket getSocket() {
  return socket;
 }

 /**
  * 設(shè)置當(dāng)前用戶(hù)連接的socket
  * @param socket
  */
 public void setSocket(Socket socket) {
  this.socket = socket;
 }

 /**
  * 獲得該用戶(hù)的消息讀取輔助類(lèi)BufferedReader實(shí)例
  * @return
  */
 public BufferedReader getBr() {
  return br;
 }

 /**
  * 設(shè)置 用戶(hù)的消息讀取輔助類(lèi)
  * @param br
  */
 public void setBr(BufferedReader br) {
  this.br = br;
 }

 /**
  * 獲得消息寫(xiě)入類(lèi)實(shí)例
  * @return
  */
 public PrintWriter getPw() {
  return pw;
 }

 /**
  * 設(shè)置消息寫(xiě)入類(lèi)實(shí)例
  * @param pw
  */
 public void setPw(PrintWriter pw) {
  this.pw = pw;
 }

 /**
  * 重寫(xiě)了用戶(hù)類(lèi)打印的函數(shù)
  */
 @Override
 public String toString() {
  return "#User"+id+"#"+name+"[#Room"+roomId+"#]<socket:"+socket+">";
 }
}

package Room;

import java.util.ArrayList;
import java.util.List;

import User.User;

/**
 * 
 * @author lannooo
 *
 */
public class Room {
 private String name;
 private long roomId;
 private ArrayList<User> list;
 private int totalUsers;

 /**
  * 獲得房間的名字
  * @return name
  */
 public String getName() {
  return name;
 }

 /**
  * 設(shè)置房間的新名字
  * @param name
  */
 public void setName(String name) {
  this.name = name;
 }

 /**
  * 獲得房間的id號(hào)
  * @return
  */
 public long getRoomId() {
  return roomId;
 }

 /**
  * 設(shè)置房間的id
  * @param roomId
  */
 public void setRoomId(long roomId) {
  this.roomId = roomId;
 }

 /**
  * 向房間中加入一個(gè)新用戶(hù)
  * @param user
  */
 public void addUser(User user) {
  if(!list.contains(user)){
   list.add(user);
   totalUsers++;
  }else{
   System.out.println("User is already in Room<"+name+">:"+user);
  }
 }

 /**
  * 從房間中刪除一個(gè)用戶(hù)
  * @param user
  * @return 目前該房間中的總用戶(hù)數(shù)目
  */
 public int delUser(User user){
  if(list.contains(user)){
   list.remove(user);
   return --totalUsers;
  }else{
   System.out.println("User is not in Room<"+name+">:"+user);
   return totalUsers;
  }
 }

 /**
  * 獲得當(dāng)前房間的用戶(hù)列表
  * @return
  */
 public ArrayList<User> getUsers(){
  return list;
 }

 /**
  * 獲得當(dāng)前房間的用戶(hù)昵稱(chēng)的列表
  * @return
  */
 public String[] getUserNames(){
  String[] userList = new String[list.size()];
  int i=0;
  for(User each: list){
   userList[i++]=each.getName();
  }
  return userList;
 }

 /**
  * 使用房間的名稱(chēng)和id來(lái)new一個(gè)房間
  * @param name
  * @param roomId
  */
 public Room(String name, long roomId) {
  this.name=name;
  this.roomId=roomId;
  this.totalUsers=0;
  list = new ArrayList<>();
 }
}

package Room;

import java.awt.image.DirectColorModel;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;

import User.User;

/**
 * 
 * @author lannooo
 *
 */
public class RoomList {
 private HashMap<Long, Room> map;
 private long unusedRoomId;
 public static long MAX_ROOMS = 9999;
 private int totalRooms;

 /**
  * 未使用的roomid從1算起，起始的房間總數(shù)為0
  */
 public RoomList(){
  map = new HashMap<>();
  unusedRoomId = 1;
  totalRooms = 0;
 }

 /**
  * 創(chuàng)建一個(gè)新的房間，使用未使用的房間號(hào)進(jìn)行創(chuàng)建，如果沒(méi)有可以使用的則就創(chuàng)建失敗
  * @param name： 房間的名字
  * @return 創(chuàng)建的房間的id
  */
 public long createRoom(String name){
  if(totalRooms<MAX_ROOMS){
   if(name.length()==0){
    name = ""+unusedRoomId;
   }
   Room room = new Room(name, unusedRoomId);
   map.put(unusedRoomId, room);
   totalRooms++;
   return unusedRoomId++;
  }else{
   return -1;
  }
 }
 /**
  * 用戶(hù)加入一個(gè)房間
  * @param user
  * @param roomID
  * @return
  */
 public boolean join(User user, long roomID){
  if(map.containsKey(roomID)){
   map.get(roomID).addUser(user);
   return true;
  }else{
   return false;
  }
 }

 /**
  * 用戶(hù)退出他的房間
  * @param user
  * @param roomID
  * @return
  */
 public int esc(User user, long roomID){
  if(map.containsKey(roomID)){
   int number = map.get(roomID).delUser(user);
   /*如果這個(gè)房間剩下的人數(shù)為0，那么刪除該房間*/
   if(number==0){
    map.remove(roomID);
    totalRooms--;
    return 0;
   }
   return 1;
  }else{
   return -1;
  }
 }
 /**
  * 列出所有房間的列表，返回一個(gè)二維數(shù)組，strings[i][0]放房間的id，string[i][1]放房間的name
  * @return
  */
 public String[][] listRooms(){
  String[][] strings = new String[totalRooms][2];
  int i=0;
  /*將map轉(zhuǎn)化為set并使用迭代器來(lái)遍歷*/
  Set<Entry<Long, Room>> set = map.entrySet();
  Iterator<Entry<Long, Room>> iterator = set.iterator();
  while(iterator.hasNext()){
   Map.Entry<Long, Room> entry = iterator.next();
   long key = entry.getKey();
   Room value = entry.getValue();
   strings[i][0]=""+key;
   strings[i][1]=value.getName();
  }
  return strings;
 }

 /**
  * 通過(guò)roomID來(lái)獲得房間
  * @param roomID
  * @return
  */
 public Room getRoom(long roomID){
  if(map.containsKey(roomID)){
   return map.get(roomID);
  }
  else 
   return null;
 }
}

package Server;

import java.net.ServerSocket;
import java.net.Socket;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Map;

import org.json.*;

import Room.Room;
import Room.RoomList;
import User.User;
/**
 * 
 * @author lannooo
 *
 */
public class Server {
 private ArrayList<User> allUsers;
 private RoomList rooms;
 private int port;
 private ServerSocket ss;
 private long unusedUserID;
 public final long MAX_USERS = 999999;

 /**
  * 通過(guò)port號(hào)來(lái)構(gòu)造服務(wù)器端對(duì)象
  * 維護(hù)一個(gè)總的用戶(hù)列表和一個(gè)房間列表
  * @param port
  * @throws Exception
  */
 public Server(int port) throws Exception {
  allUsers = new ArrayList<>();
  rooms = new RoomList();
  this.port=port;
  unusedUserID=1;
  ss = new ServerSocket(port);
  System.out.println("Server is builded!");
 }

 /**
  * 獲得下一個(gè)可用的用戶(hù)id
  * @return
  */
 private long getNextUserID(){
  if(unusedUserID < MAX_USERS)
   return unusedUserID++;
  else
   return -1;
 }

 /**
  * 開(kāi)始監(jiān)聽(tīng)，當(dāng)接受到新的用戶(hù)連接，就創(chuàng)建一個(gè)新的用戶(hù)，并添加到用戶(hù)列表中
  * 然后創(chuàng)建一個(gè)新的服務(wù)線(xiàn)程用于收發(fā)該用戶(hù)的消息
  * @throws Exception
  */
 public void startListen() throws Exception{
  while(true){
   Socket socket = ss.accept();
   long id = getNextUserID();
   if(id != -1){
    User user = new User("User"+id, id, socket);
    System.out.println(user.getName() + " is login...");
    allUsers.add(user);
    ServerThread thread = new ServerThread(user, allUsers, rooms);
    thread.start();
   }else{
    System.out.println("Server is full!");
    socket.close();
   }
  }
 }

 /**
  * 測(cè)試用main方法，設(shè)置偵聽(tīng)端口為9999，并開(kāi)始監(jiān)聽(tīng)
  * @param args
  */
 public static void main(String[] args) {
  try {
   Server server = new Server(9999);
   server.startListen();
  } catch (Exception e) {
   e.printStackTrace();
  }
 }
}

package Server;

import java.io.IOException;
import java.io.PrintWriter;
import java.net.SocketException;
import java.util.ArrayList;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import Room.Room;
import Room.RoomList;
import User.User;

/**
 * 
 * @author lannooo
 *
 */
public class ServerThread extends Thread {
 private User user;
 private ArrayList<User> userList;/*保存用戶(hù)列表*/
 private RoomList map;   /*保存房間列表*/
 private long roomId;
 private PrintWriter pw;
 /**
  * 通過(guò)用戶(hù)的對(duì)象實(shí)例、全局的用戶(hù)列表、房間列表進(jìn)行構(gòu)造
  * @param user
  * @param userList
  * @param map
  */
 public ServerThread(User user, 
   ArrayList<User> userList, RoomList map){
  this.user=user;
  this.userList=userList;
  this.map=map;
  pw=null;
  roomId = -1;
 }

 /**
  * 線(xiàn)程運(yùn)行部分，持續(xù)讀取用戶(hù)socket發(fā)送來(lái)的數(shù)據(jù)，并解析
  */
 public void run(){
  try{
   while (true) {
    String msg=user.getBr().readLine();
    System.out.println(msg); /*解析用戶(hù)的數(shù)據(jù)格式*/
    parseMsg(msg);
   }
  }catch (SocketException se) { /*處理用戶(hù)斷開(kāi)的異常*/
   System.out.println("user "+user.getName()+" logout.");

  }catch (Exception e) { /*處理其他異常*/
   e.printStackTrace();
  }finally {
   try {
    /*
     * 用戶(hù)斷開(kāi)或者退出，需要把該用戶(hù)移除
     * 并關(guān)閉socket
     */
    remove(user);
    user.getBr().close();
    user.getSocket().close();
   } catch (IOException ioe) {
    ioe.printStackTrace();
   }
  }
 }

 /**
  * 用正則表達(dá)式匹配數(shù)據(jù)的格式，根據(jù)不同的指令類(lèi)型，來(lái)調(diào)用相應(yīng)的方法處理
  * @param msg
  */
 private void parseMsg(String msg){
  String code = null;
  String message=null;
  if(msg.length()>0){
   /*匹配指令類(lèi)型部分的字符串*/
   Pattern pattern = Pattern.compile("<code>(.*)</code>");
   Matcher matcher = pattern.matcher(msg);
   if(matcher.find()){
    code = matcher.group(1);
   }
   /*匹配消息部分的字符串*/
   pattern = Pattern.compile("<msg>(.*)</msg>");
   matcher = pattern.matcher(msg);
   if(matcher.find()){
    message = matcher.group(1);
   }

   switch (code) {
   case "join":
    // add to the room
    // code = 1, 直接顯示在textArea中
    // code = 11, 在list中加入
    // code = 21, 把當(dāng)前房間里的所有用戶(hù)返回給client
    if(roomId == -1){
     roomId = Long.parseLong(message);
     map.join(user, roomId);
     sendRoomMsgExceptSelf(buildCodeWithMsg("<name>"+user.getName()+"</name><id>"+user.getId()+"</id>", 11));
     // 這個(gè)消息需要加入房間里已有用戶(hù)的列表
     returnMsg(buildCodeWithMsg("你加入了房間:" + map.getRoom(roomId).getName(), 1));
     returnMsg(buildCodeWithMsg(getMembersInRoom(), 21));
    }else{
     map.esc(user, roomId);
     sendRoomMsg(buildCodeWithMsg(""+user.getId(), 12));
     long oldRoomId = roomId;
     roomId = Long.parseLong(message);
     map.join(user, roomId);
     sendRoomMsgExceptSelf(buildCodeWithMsg("<name>"+user.getName()+"</name><id>"+user.getId()+"</id>", 11));
     returnMsg(buildCodeWithMsg("你退出房間:" + map.getRoom(oldRoomId).getName() + ",并加入了房間:" + roomId,1));
     returnMsg(buildCodeWithMsg(getMembersInRoom(), 21));
    }
    break;
   case "esc":
    // delete from room list
    // code = 2， 彈窗提示
    // code = 12, 對(duì)所有該房間的其他用戶(hù)發(fā)送該用戶(hù)退出房間的信息，從list中刪除
    if(roomId!=-1){
     int flag=map.esc(user, roomId);
     sendRoomMsgExceptSelf(buildCodeWithMsg(""+user.getId(), 12));
     long oldRoomId=roomId;
     roomId = -1;
     returnMsg(buildCodeWithMsg("你已經(jīng)成功退出房間，不會(huì)收到消息", 2));
     if(flag==0){
      sendMsg(buildCodeWithMsg(""+oldRoomId, 13));
     }
    }else{
     returnMsg(buildCodeWithMsg("你尚未加入任何房間", 2));
    }
    break;
   case "list":
    // list all the rooms
    // code = 3, 在客戶(hù)端解析rooms，并填充roomlist
    returnMsg(buildCodeWithMsg(getRoomsList(), 3));
    break;
   case "message":
    // send message
    // code = 4, 自己收到的話(huà)，打印的是‘你說(shuō)：....'否則打印user id對(duì)應(yīng)的name
    sendRoomMsg(buildCodeWithMsg("<from>"+user.getId()+"</from><smsg>"+message+"</smsg>", 4));
    break;
   case "create":
    // create a room 
    // code=5,提示用戶(hù)進(jìn)入了房間
    // code=15,需要在其他所有用戶(hù)的room列表中更新
    roomId = map.createRoom(message);
    map.join(user, roomId);
    sendMsg(buildCodeWithMsg("<rid>"+roomId+"</rid><rname>"+message+"</rname>", 15));
    returnMsg(buildCodeWithMsg("你進(jìn)入了創(chuàng)建的房間："+map.getRoom(roomId).getName(), 5));
    returnMsg(buildCodeWithMsg(getMembersInRoom(), 21));
    break;
   case "setname":
    // set name for user
    // code=16,告訴房間里的其他人，你改了昵稱(chēng)
    user.setName(message);
    sendRoomMsg(buildCodeWithMsg("<id>"+user.getId()+"</id><name>"+message+"</name>", 16));
    break;
   default:
    // returnMsg("something unknown");
    System.out.println("not valid message from user"+user.getId());
    break;
   }
  } 
 }

 /**
  * 獲得該用戶(hù)房間中的所有用戶(hù)列表，并構(gòu)造成一定格式的消息返回
  * @return
  */
 private String getMembersInRoom(){
  /*先從room列表獲得該用戶(hù)的room*/
  Room room = map.getRoom(roomId);
  StringBuffer stringBuffer = new StringBuffer();
  if(room != null){
   /*獲得房間中所有的用戶(hù)的列表，然后構(gòu)造成一定的格式發(fā)送回去*/
   ArrayList<User> users = room.getUsers();
   for(User each: users){
    stringBuffer.append("<member><name>"+each.getName()+
        "</name><id>"+each.getId()+"</id></member>");
   }
  }
  return stringBuffer.toString();
 }

 /**
  * 獲得所有房間的列表，并構(gòu)造成一定的格式
  * @return
  */
 private String getRoomsList(){
  String[][] strings = map.listRooms();
  StringBuffer sb = new StringBuffer();
  for(int i=0; i<strings.length; i++){
   sb.append("<room><rname>"+strings[i][1]+
      "</rname><rid>"+strings[i][0]+"</rid></room>");
  }
  return sb.toString();
 }

 /**
  * 構(gòu)造成一個(gè)統(tǒng)一的消息格式
  * @param msg
  * @param code
  * @return
  */
 private String buildCodeWithMsg(String msg, int code){
  return "<code>"+code+"</code><msg>"+msg+"</msg>\n";
 }

 /**
  * 這個(gè)是群發(fā)消息：全體用戶(hù),code>10
  * @param msg
  */
 private void sendMsg(String msg) {
//  System.out.println("In sendMsg()");
  /*取出用戶(hù)列表中的每一個(gè)用戶(hù)來(lái)發(fā)送消息*/
  for(User each:userList){
   try {
    pw=each.getPw();
    pw.println(msg);
    pw.flush();
    System.out.println(msg);
   } catch (Exception e) {
    System.out.println("exception in sendMsg()");
   }
  }
 }

 /**
  * 只對(duì)同一房間的用戶(hù)發(fā)：code>10
  * @param msg
  */
 private void sendRoomMsg(String msg){
  /*先獲得該用戶(hù)的房間號(hào)，然后往該房間發(fā)送消息*/
  Room room = map.getRoom(roomId);
  if(room != null){
   ArrayList<User> users = room.getUsers();
   for(User each: users){
    pw = each.getPw();
    pw.println(msg);
    pw.flush();
   }
  }
 }
 /**
  * 向房間中除了該用戶(hù)自己，發(fā)送消息
  * @param msg
  */
 private void sendRoomMsgExceptSelf(String msg){
  Room room = map.getRoom(roomId);
  if(room != null){
   ArrayList<User> users = room.getUsers();
   for(User each: users){
    if(each.getId()!=user.getId()){
     pw = each.getPw();
     pw.println(msg);
     pw.flush();
    }
   }
  }
 }

 /**
  * 對(duì)于client的來(lái)信，返回一個(gè)結(jié)果,code<10
  * @param msg
  */
 private void returnMsg(String msg){
  try{
   pw = user.getPw();
   pw.println(msg);
   pw.flush();
  }catch (Exception e) {
   System.out.println("exception in returnMsg()");
  }
 }

 /**
  * 移除該用戶(hù)，并向房間中其他用戶(hù)發(fā)送該用戶(hù)已經(jīng)退出的消息
  * 如果房間中沒(méi)人了，那么就更新房間列表給所有用戶(hù)
  * @param user
  */
 private void remove(User user){
  if(roomId!=-1){
   int flag=map.esc(user, roomId);
   sendRoomMsgExceptSelf(buildCodeWithMsg(""+user.getId(), 12));
   long oldRoomId=roomId;
   roomId = -1;
   if(flag==0){
    sendMsg(buildCodeWithMsg(""+oldRoomId, 13));
   }
  }
  userList.remove(user);
 }
}

package Client;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.Font;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.Socket;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Set;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import javax.swing.DefaultListModel;
import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JList;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollBar;
import javax.swing.JScrollPane;
import javax.swing.JTextField;
import javax.swing.JTextPane;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
import javax.swing.text.BadLocationException;
import javax.swing.text.SimpleAttributeSet;
import javax.swing.text.Style;
import javax.swing.text.StyleConstants;
import javax.swing.text.StyledDocument;


/**
 * 
 * @author lannooo
 *
 */
public class Client implements ActionListener{
 private JFrame frame;
 private Socket socket;
 private BufferedReader br;
 private PrintWriter pw;
 private String name;
 private HashMap<String, Integer> rooms_map;
 private HashMap<String, Integer> users_map;
 private JTextField host_textfield;
 private JTextField port_textfield;
 private JTextField text_field;
 private JTextField name_textfiled;
 private JLabel rooms_label;
 private JLabel users_label;
 private JList<String> roomlist;
 private JList<String> userlist;
 private JTextPane msgArea;
 private JScrollPane textScrollPane;
 private JScrollBar vertical;
 DefaultListModel<String> rooms_model;
 DefaultListModel<String> users_model;

 /*
  * 構(gòu)造函數(shù)
  * 該客戶(hù)端對(duì)象維護(hù)兩個(gè)map，房間的hashmap和房間中用戶(hù)的hashmap
  * 作為列表組件的數(shù)據(jù)模型
  */
 public Client(){
  rooms_map = new HashMap<>();
  users_map = new HashMap<>();
  initialize();
 }

 /**
  * 連接服務(wù)端，指定host和port
  * @param host
  * @param port
  * @return
  */
 public boolean connect(String host, int port){
  try {
   socket = new Socket(host, port);
   System.out.println("Connected to server!"+socket.getRemoteSocketAddress());
   br=new BufferedReader(new InputStreamReader(System.in));
   pw=new PrintWriter(socket.getOutputStream());
   /*
    * 創(chuàng)建一個(gè)接受和解析服務(wù)器消息的線(xiàn)程
    * 傳入當(dāng)前客戶(hù)端對(duì)象的指針，作為句柄調(diào)用相應(yīng)的處理函數(shù)
    */
   ClientThread thread = new ClientThread(socket, this);
   thread.start();

   return true;

  } catch (IOException e) {
   System.out.println("Server error");
   JOptionPane.showMessageDialog(frame, "服務(wù)器無(wú)法連接！");
   return false;
  }
 }

 /*當(dāng)前進(jìn)程作為只發(fā)送消息的線(xiàn)程，從命令行中獲取輸入*/
// public void sendMsg(){
//  String msg;
//  try {
//   while(true){
//    msg = br.readLine();
//    pw.println(msg);
//    pw.flush();
//   }
//  } catch (IOException e) {
//   System.out.println("error when read msg and to send.");
//  }
// }

 /**
  * 發(fā)給服務(wù)器的消息，先經(jīng)過(guò)一定的格式構(gòu)造再發(fā)送
  * @param msg
  * @param code
  */
 public void sendMsg(String msg, String code){
  try {
   pw.println("<code>"+code+"</code><msg>"+msg+"</msg>");
   pw.flush();
  } catch (Exception e) {
   //一般是沒(méi)有連接的問(wèn)題
   System.out.println("error in sendMsg()");
   JOptionPane.showMessageDialog(frame, "請(qǐng)先連接服務(wù)器！");
  }
 }

 /**
  * 窗口初始化
  */
 private void initialize() {
  /*設(shè)置窗口的UI風(fēng)格和字體*/
  setUIStyle();
  setUIFont();

  JFrame frame = new JFrame("ChatOnline");
  JPanel panel = new JPanel();  /*主要的panel，上層放置連接區(qū)，下層放置消息區(qū)，
             中間是消息面板，左邊是room列表，右邊是當(dāng)前room的用戶(hù)列表*/
  JPanel headpanel = new JPanel(); /*上層panel，用于放置連接區(qū)域相關(guān)的組件*/
  JPanel footpanel = new JPanel(); /*下層panel，用于放置發(fā)送信息區(qū)域的組件*/
  JPanel leftpanel = new JPanel(); /*左邊panel，用于放置房間列表和加入按鈕*/
  JPanel rightpanel = new JPanel(); /*右邊panel，用于放置房間內(nèi)人的列表*/

  /*最上層的布局，分中間，東南西北五個(gè)部分*/
  BorderLayout layout = new BorderLayout();
  /*格子布局，主要用來(lái)設(shè)置西、東、南三個(gè)部分的布局*/
  GridBagLayout gridBagLayout = new GridBagLayout();
  /*主要設(shè)置北部的布局*/
  FlowLayout flowLayout = new FlowLayout();
  /*設(shè)置初始窗口的一些性質(zhì)*/
  frame.setBounds(100, 100, 800, 600);
  frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  frame.setContentPane(panel);
  frame.setLayout(layout);
  /*設(shè)置各個(gè)部分的panel的布局和大小*/
  headpanel.setLayout(flowLayout);
  footpanel.setLayout(gridBagLayout);
  leftpanel.setLayout(gridBagLayout);
  rightpanel.setLayout(gridBagLayout);
  leftpanel.setPreferredSize(new Dimension(130, 0));
  rightpanel.setPreferredSize(new Dimension(130, 0));


  /*以下均是headpanel中的組件*/
  host_textfield = new JTextField("127.0.0.1");
  port_textfield = new JTextField("9999");
  name_textfiled = new JTextField("匿名");
  host_textfield.setPreferredSize(new Dimension(100, 25));
  port_textfield.setPreferredSize(new Dimension(70, 25));
  name_textfiled.setPreferredSize(new Dimension(150, 25));

  JLabel host_label = new JLabel("服務(wù)器IP");
  JLabel port_label = new JLabel("端口");
  JLabel name_label = new JLabel("昵稱(chēng)");

  JButton head_connect = new JButton("連接");
//  JButton head_change = new JButton("確認(rèn)更改");
  JButton head_create = new JButton("創(chuàng)建房間");

  headpanel.add(host_label);
  headpanel.add(host_textfield);
  headpanel.add(port_label);
  headpanel.add(port_textfield);
  headpanel.add(head_connect);
  headpanel.add(name_label);
  headpanel.add(name_textfiled);
//  headpanel.add(head_change);
  headpanel.add(head_create);

  /*以下均是footpanel中的組件*/
  JButton foot_emoji = new JButton("表情");
  JButton foot_send = new JButton("發(fā)送");
  text_field = new JTextField();
  footpanel.add(text_field, new GridBagConstraints(0, 0, 1, 1, 100, 100, 
    GridBagConstraints.CENTER, GridBagConstraints.BOTH, new Insets(0, 0, 0, 0), 0, 0));
  footpanel.add(foot_emoji, new GridBagConstraints(1, 0, 1, 1, 1.0, 1.0, 
    GridBagConstraints.CENTER, GridBagConstraints.BOTH, new Insets(0, 0, 0, 0), 0, 0));
  footpanel.add(foot_send, new GridBagConstraints(2, 0, 1, 1, 1.0, 1.0, 
    GridBagConstraints.CENTER, GridBagConstraints.BOTH, new Insets(0, 0, 0, 0), 0, 0));

  /*兩邊的格子中的組件*/
  rooms_label = new JLabel("當(dāng)前房間數(shù)：0");
  users_label = new JLabel("房間內(nèi)人數(shù)：0");
  JButton join_button = new JButton("加入房間");
  JButton esc_button = new JButton("退出房間");

  rooms_model = new DefaultListModel<>();
  users_model = new DefaultListModel<>();
//  rooms_model.addElement("房間1");
//  rooms_model.addElement("房間2");
//  rooms_model.addElement("房間3");
//  String fangjian = "房間1";
//  rooms_map.put(fangjian, 1);

  roomlist = new JList<>(rooms_model);
  userlist = new JList<>(users_model);

  JScrollPane roomListPane = new JScrollPane(roomlist);
  JScrollPane userListPane = new JScrollPane(userlist);

  leftpanel.add(rooms_label, new GridBagConstraints(0, 0, 1, 1, 1, 1, 
    GridBagConstraints.CENTER, GridBagConstraints.BOTH, new Insets(0, 0, 0, 0), 0, 0));
  leftpanel.add(join_button, new GridBagConstraints(0, 1, 1, 1, 1, 1, 
    GridBagConstraints.CENTER, GridBagConstraints.BOTH, new Insets(0, 0, 0, 0), 0, 0));
  leftpanel.add(esc_button, new GridBagConstraints(0, 2, 1, 1, 1, 1, 
    GridBagConstraints.CENTER, GridBagConstraints.BOTH, new Insets(0, 0, 0, 0), 0, 0));
  leftpanel.add(roomListPane, new GridBagConstraints(0, 3, 1, 1, 100, 100, 
    GridBagConstraints.CENTER, GridBagConstraints.BOTH, new Insets(0, 0, 0, 0), 0, 0));
  rightpanel.add(users_label, new GridBagConstraints(0, 0, 1, 1, 1, 1, 
    GridBagConstraints.CENTER, GridBagConstraints.BOTH, new Insets(0, 0, 0, 0), 0, 0));
  rightpanel.add(userListPane,new GridBagConstraints(0, 1, 1, 1, 100, 100, 
    GridBagConstraints.CENTER, GridBagConstraints.BOTH, new Insets(0, 0, 0, 0), 0, 0));

  /*中間的文本區(qū)組件*/
  msgArea = new JTextPane();
  msgArea.setEditable(false);
  textScrollPane = new JScrollPane();
  textScrollPane.setViewportView(msgArea);
  vertical = new JScrollBar(JScrollBar.VERTICAL);
  vertical.setAutoscrolls(true);
  textScrollPane.setVerticalScrollBar(vertical);

  /*設(shè)置頂層布局*/
  panel.add(headpanel, "North");
  panel.add(footpanel, "South");
  panel.add(leftpanel, "West");
  panel.add(rightpanel, "East");
  panel.add(textScrollPane, "Center");

  /*注冊(cè)各種事件*/
  /*連接服務(wù)器*/
  head_connect.addActionListener(this);
  /*發(fā)送消息，如果沒(méi)有連接則會(huì)彈窗提示*/
  foot_send.addActionListener(this);
  /*改名字*/
//  head_change.addActionListener(this);
  /*創(chuàng)建房間*/
  head_create.addActionListener(this);
  /*發(fā)送表情*/
  foot_emoji.addActionListener(this);
  /*加入room*/
  join_button.addActionListener(this);
  /*退出房間*/
  esc_button.addActionListener(this);

  /*最終顯示*/
  frame.setVisible(true);
 }

 /**
  * 事件監(jiān)聽(tīng)處理
  */
 @Override
 public void actionPerformed(ActionEvent e) {
  String cmd = e.getActionCommand();
  switch (cmd) {
  case "連接": /*點(diǎn)擊連接按鈕*/
   String strhost = host_textfield.getText();
   String strport = port_textfield.getText();
   connect(strhost, Integer.parseInt(strport));
   String nameSeted = JOptionPane.showInputDialog("請(qǐng)輸入你的昵稱(chēng)："); /*提示輸入昵稱(chēng)*/
   name_textfiled.setText(nameSeted);
   name_textfiled.setEditable(false);
   port_textfield.setEditable(false);
   host_textfield.setEditable(false);
   /*發(fā)送設(shè)置姓名的消息和列出用戶(hù)列表的消息*/
   sendMsg(nameSeted, "setname");
   sendMsg("", "list");
   break;
//  case "確認(rèn)更改":
//   String strname = name_textfiled.getText();
//   name = strname;
//   sendMsg(strname, "setname");
//   break;
  case "加入房間": /*選擇房間后，點(diǎn)擊加入房間按鈕*/
   String selected = roomlist.getSelectedValue();
   if(rooms_map.containsKey(selected)){
    sendMsg(""+rooms_map.get(selected), "join");
   }
   break;
  case "退出房間": /*點(diǎn)擊退出房間的按鈕*/
   sendMsg("", "esc");
   break;
  case "發(fā)送":  /*點(diǎn)擊發(fā)送消息的按鈕*/
   String text = text_field.getText();
   text_field.setText("");
   sendMsg(text, "message");
   break;
  case "表情":  /*發(fā)送表情，新建一個(gè)表情窗口，并直接在表情窗口中處理消息發(fā)送*/
   IconDialog dialog = new IconDialog(frame, this);
   break;
  case "創(chuàng)建房間": /*點(diǎn)擊創(chuàng)建房間的按鈕，彈出提示框數(shù)據(jù)房間名稱(chēng)*/
   String string = JOptionPane.showInputDialog("請(qǐng)輸入你的房間名稱(chēng)");
   if(string==null || string.equals("")){
    string = name+(int)(Math.random()*10000)+"的房間";
   }
   sendMsg(string, "create");
   break;
  default:
   break;
  }

 }


 /*很多輔助和clientThread互動(dòng)的*/

 /**
  * 加入用戶(hù)，通過(guò)正則表達(dá)式，匹配消息內(nèi)容中的用戶(hù)信息
  * @param content
  */
 public void addUser(String content){
  if(content.length()>0){
   Pattern pattern = Pattern.compile("<name>(.*)</name><id>(.*)</id>");
   Matcher matcher = pattern.matcher(content);
   if(matcher.find()){
    /*
     * 獲得用戶(hù)的name和id
     * 加入用戶(hù)列表
     * 在消息區(qū)顯示系統(tǒng)提示
     */
    String name = matcher.group(1);
    String id = matcher.group(2);
    insertUser(Integer.parseInt(id), name);
    insertMessage(textScrollPane, msgArea, null, "系統(tǒng)：", name+"加入了聊天室");
   }
  }
  users_label.setText("房間內(nèi)人數(shù)："+users_map.size()); /*更新房間內(nèi)的人數(shù)*/
 }

 /**
  * 刪除用戶(hù)
  * @param content
  */
 public void delUser(String content){
  if(content.length()>0){
   int id = Integer.parseInt(content);
   /*
    * 從維護(hù)的用戶(hù)map中取得所有的用戶(hù)名字，然后去遍歷匹配的用戶(hù)
    * 匹配到的用戶(hù)名字從相應(yīng)的數(shù)據(jù)模型中移除
    * 并從map中移除，并在消息框中提示系統(tǒng)消息
    */
   Set<String> set = users_map.keySet();
   Iterator<String> iter = set.iterator();
   String name=null;
   while(iter.hasNext()){
    name = iter.next();
    if(users_map.get(name)==id){
     users_model.removeElement(name);
     break;
    }
   }
   users_map.remove(name);
   insertMessage(textScrollPane, msgArea, null, "系統(tǒng)：", name+"退出了聊天室");
  }
  users_label.setText("房間內(nèi)人數(shù)："+users_map.size());
 }


 /**
  * 更新用戶(hù)信息
  * @param content
  */
 public void updateUser(String content){
  if(content.length()>0){
   Pattern pattern = Pattern.compile("<id>(.*)</id><name>(.*)</name>");
   Matcher matcher = pattern.matcher(content);
   if(matcher.find()){
    String id = matcher.group(1);
    String name = matcher.group(2);
    insertUser(Integer.parseInt(id), name);
   }
  }
 }

 /**
  * 列出所有用戶(hù)
  * @param content
  */
 public void listUsers(String content){
  String name = null;
  String id=null;
  Pattern rough_pattern=null;
  Matcher rough_matcher=null;
  Pattern detail_pattern=null;
  /*
   * 先用正則表達(dá)式匹配用戶(hù)信息
   * 然后插入數(shù)據(jù)模型中
   * 并更新用戶(hù)數(shù)據(jù)模型中的條目
   */
  if(content.length()>0){
   rough_pattern = Pattern.compile("<member>(.*?)</member>");
   rough_matcher = rough_pattern.matcher(content);
   while(rough_matcher.find()){
    String detail = rough_matcher.group(1);
    detail_pattern = Pattern.compile("<name>(.*)</name><id>(.*)</id>");
    Matcher detail_matcher = detail_pattern.matcher(detail);
    if(detail_matcher.find()){
     name = detail_matcher.group(1);
     id = detail_matcher.group(2);
     insertUser(Integer.parseInt(id), name);
    }
   }
  }
  users_label.setText("房間內(nèi)人數(shù)："+users_map.size());
 }

 /**
  * 直接在textarea中顯示消息
  * @param content
  */
 public void updateTextArea(String content){
  insertMessage(textScrollPane, msgArea, null, "系統(tǒng)：", content);
 }

 /**
  * 在textarea中顯示其他用戶(hù)的消息
  * 先用正則匹配，再顯示消息
  * 其中還需要匹配emoji表情的編號(hào)
  * @param content
  */
 public void updateTextAreaFromUser(String content){
  if(content.length()>0){
   Pattern pattern = Pattern.compile("<from>(.*)</from><smsg>(.*)</smsg>");
   Matcher matcher = pattern.matcher(content);
   if(matcher.find()){
    String from = matcher.group(1);
    String smsg = matcher.group(2);
    String fromName = getUserName(from);
    if(fromName.equals(name))
     fromName = "你";
    if(smsg.startsWith("<emoji>")){
     String emojiCode = smsg.substring(7, smsg.length()-8);
//     System.out.println(emojiCode);
     insertMessage(textScrollPane, msgArea, emojiCode, fromName+"說(shuō)：", null);
     return ;
    }
    insertMessage(textScrollPane, msgArea, null, fromName+"說(shuō)：", smsg);
   }
  }
 }

 /**
  * 顯示退出的結(jié)果
  * @param content
  */
 public void showEscDialog(String content){
  JOptionPane.showMessageDialog(frame, content);
  /*清除消息區(qū)內(nèi)容，清除用戶(hù)數(shù)據(jù)模型內(nèi)容和用戶(hù)map內(nèi)容，更新房間內(nèi)人數(shù)*/
  msgArea.setText("");
  users_model.clear();
  users_map.clear();
  users_label.setText("房間內(nèi)人數(shù)：0");

 }
 /**
  * 新增一個(gè)room
  * @param content
  */
 public void addRoom(String content){
  if(content.length()>0){
   Pattern pattern = Pattern.compile("<rid>(.*)</rid><rname>(.*)</rname>");
   Matcher matcher = pattern.matcher(content);
   if(matcher.find()){
    String rid = matcher.group(1);
    String rname = matcher.group(2);
    insertRoom(Integer.parseInt(rid), rname);
   }
  }
  rooms_label.setText("當(dāng)前房間數(shù)："+rooms_map.size());
 }

 /**
  * 刪除一個(gè)room
  * @param content
  */
 public void delRoom(String content){
  if(content.length()>0){
   int delRoomId = Integer.parseInt(content);

   Set<String> set = rooms_map.keySet();
   Iterator<String> iter = set.iterator();
   String rname=null;
   while(iter.hasNext()){
    rname = iter.next();
    if(rooms_map.get(rname)==delRoomId){
     rooms_model.removeElement(rname);
     break;
    }
   }
   rooms_map.remove(rname);
  }
  rooms_label.setText("當(dāng)前房間數(shù)："+rooms_map.size());
 }

 /**
  * 列出目前所有的rooms
  * @param content
  */
 public void listRooms(String content){
  String rname = null;
  String rid=null;
  Pattern rough_pattern=null;
  Matcher rough_matcher=null;
  Pattern detail_pattern=null;
  if(content.length()>0){
   rough_pattern = Pattern.compile("<room>(.*?)</room>");
   rough_matcher = rough_pattern.matcher(content);
   while(rough_matcher.find()){
    String detail = rough_matcher.group(1);
    detail_pattern = Pattern.compile("<rname>(.*)</rname><rid>(.*)</rid>");
    Matcher detail_matcher = detail_pattern.matcher(detail);
    if(detail_matcher.find()){
     rname = detail_matcher.group(1);
     rid = detail_matcher.group(2);
     insertRoom(Integer.parseInt(rid), rname);
    }
   }
  }
  rooms_label.setText("當(dāng)前房間數(shù)："+rooms_map.size());
 }
 /**
  * 插入一個(gè)room
  * @param rid
  * @param rname
  */
 private void insertRoom(Integer rid, String rname){
  if(!rooms_map.containsKey(rname)){
   rooms_map.put(rname, rid);
   rooms_model.addElement(rname);
  }else{
   rooms_map.remove(rname);
   rooms_model.removeElement(rname);
   rooms_map.put(rname, rid);
   rooms_model.addElement(rname);
  }
  rooms_label.setText("當(dāng)前房間數(shù)："+rooms_map.size());
 }
 /**
  * 插入一個(gè)user
  * @param id
  * @param name
  */
 private void insertUser(Integer id, String name){
  if(!users_map.containsKey(name)){
   users_map.put(name, id);
   users_model.addElement(name);
  }else{
   users_map.remove(name);
   users_model.removeElement(name);
   users_map.put(name, id);
   users_model.addElement(name);
  }
  users_label.setText("房間內(nèi)人數(shù)："+users_map.size());
 }

 /**
  * 獲得用戶(hù)的姓名
  * @param strId
  * @return
  */
 private String getUserName(String strId){
  int uid = Integer.parseInt(strId);
  Set<String> set = users_map.keySet();
  Iterator<String> iterator = set.iterator();
  String cur=null;
  while(iterator.hasNext()){
   cur = iterator.next();
   if(users_map.get(cur)==uid){
    return cur;
   }
  }
  return "";
 }

 /**
  * 獲得用戶(hù)所在房間的名稱(chēng)
  * @param strId
  * @return
  */
 private String getRoomName(String strId){
  int rid = Integer.parseInt(strId);
  Set<String> set = rooms_map.keySet();
  Iterator<String> iterator = set.iterator();
  String cur = null;
  while(iterator.hasNext()){
   cur = iterator.next();
   if(rooms_map.get(cur)==rid){
    return cur;
   }
  }
  return "";
 }

 /**
  * 打印一條消息，如果有圖片就打印圖片，否則打印content
  * @param scrollPane
  * @param textPane
  * @param icon_code
  * @param title
  * @param content
  */
 private void insertMessage(JScrollPane scrollPane, JTextPane textPane,
   String icon_code, String title, String content){
  StyledDocument document = textPane.getStyledDocument();  /*獲取textpane中的文本*/
  /*設(shè)置標(biāo)題的屬性*/
  SimpleAttributeSet title_attr = new SimpleAttributeSet();
  StyleConstants.setBold(title_attr, true);
  StyleConstants.setForeground(title_attr, Color.BLUE);
  /*設(shè)置正文的屬性*/
  SimpleAttributeSet content_attr = new SimpleAttributeSet(); 
  StyleConstants.setBold(content_attr, false); 
  StyleConstants.setForeground(content_attr, Color.BLACK);
  Style style = null;
  if(icon_code!=null){
   Icon icon = new ImageIcon("icon/"+icon_code+".png");
   style = document.addStyle("icon", null); 
   StyleConstants.setIcon(style, icon);
  }

  try { 
   document.insertString(document.getLength(), title+"\n", title_attr);
   if(style!=null)
    document.insertString(document.getLength(), "\n", style);
   else
    document.insertString(document.getLength(), " "+content+"\n", content_attr);

  } catch (BadLocationException ex) { 
   System.out.println("Bad location exception");
  }
  /*設(shè)置滑動(dòng)條到最后*/
  vertical.setValue(vertical.getMaximum());
 }

 /**
  * 設(shè)置需要美化字體的組件
  */
 public static void setUIFont()
 {
  Font f = new Font("微軟雅黑", Font.PLAIN, 14);
  String names[]={ "Label", "CheckBox", "PopupMenu","MenuItem", "CheckBoxMenuItem",
    "JRadioButtonMenuItem","ComboBox", "Button", "Tree", "ScrollPane",
    "TabbedPane", "EditorPane", "TitledBorder", "Menu", "TextArea","TextPane",
    "OptionPane", "MenuBar", "ToolBar", "ToggleButton", "ToolTip",
    "ProgressBar", "TableHeader", "Panel", "List", "ColorChooser",
    "PasswordField","TextField", "Table", "Label", "Viewport",
    "RadioButtonMenuItem","RadioButton", "DesktopPane", "InternalFrame"
  }; 
  for (String item : names) {
    UIManager.put(item+ ".font",f); 
  }
 }
 /**
  * 設(shè)置UI風(fēng)格為當(dāng)前系統(tǒng)的風(fēng)格
  */
 public static void setUIStyle(){
  String lookAndFeel =UIManager.getSystemLookAndFeelClassName();
  try {
   UIManager.setLookAndFeel(lookAndFeel);
  } catch (ClassNotFoundException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  } catch (InstantiationException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  } catch (IllegalAccessException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  } catch (UnsupportedLookAndFeelException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }
 }

 /**
  * 測(cè)試用的main函數(shù)
  * @param args
  */
 public static void main(String[] args) {
  Client client = new Client();
 }


}

package Client;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.Socket;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/**
 * 
 * @author lannooo
 *
 */
public class ClientThread extends Thread{
 private Socket socket;
 private Client client;
 private BufferedReader br;
 private PrintWriter pw;
 /**
  * 從過(guò)主線(xiàn)程傳入的socket和client對(duì)象來(lái)構(gòu)造
  * @param socket
  * @param client
  */
 public ClientThread(Socket socket, Client client){
  this.client = client;
  this.socket = socket;
  try {
   br=new BufferedReader(new InputStreamReader(socket.getInputStream()));

  } catch (IOException e) {
   System.out.println("cannot get inputstream from socket.");
  }
 }

 /**
  * 不斷的讀數(shù)據(jù)并處理
  * 調(diào)用主線(xiàn)程的方法來(lái)處理：client.method();
  */
 public void run() {
  try{
   br=new BufferedReader(new InputStreamReader(socket.getInputStream()));
   while(true){
    String msg = br.readLine();
    parseMessage(msg);
   }
  }catch (Exception e) {
   e.printStackTrace();
  }
 }
 /**
  * 處理從服務(wù)器收到的消息
  * @param message
  */
 public void parseMessage(String message){
  String code = null;
  String msg=null;
  /*
   * 先用正則表達(dá)式匹配code碼和msg內(nèi)容 
   */
  if(message.length()>0){
   Pattern pattern = Pattern.compile("<code>(.*)</code>");
   Matcher matcher = pattern.matcher(message);
   if(matcher.find()){
    code = matcher.group(1);
   }
   pattern = Pattern.compile("<msg>(.*)</msg>");
   matcher = pattern.matcher(message);
   if(matcher.find()){
    msg = matcher.group(1);
   }
   System.out.println(code+":"+msg);
   switch(code){
   case "1": /*一個(gè)普通消息處理*/
    client.updateTextArea(msg);
    break;
   case "2": /*退出消息*/
    client.showEscDialog(msg);
    break;
   case "3": /*列出房間*/
    client.listRooms(msg);
    break;
   case "4": /*其他用戶(hù)的消息*/
    client.updateTextAreaFromUser(msg);
    break;
   case "5": /*普通消息處理*/
    client.updateTextArea(msg);
    break;
   case "11": /*添加用戶(hù)*/
    client.addUser(msg);
    break;
   case "12": /*刪除用戶(hù)*/
    client.delUser(msg);
    break;
   case "13": /*刪除房間*/
    client.delRoom(msg);
    break;
   case "15": /*添加房間*/
    client.addRoom(msg);
    break;
   case "16": /*更新用戶(hù)名稱(chēng)*/
    client.updateUser(msg);
    break;
   case "21": /*列出用戶(hù)列表*/
    client.listUsers(msg);
    break;
   }
  }

 }
}

package Client;

import java.awt.Container;
import java.awt.Dialog;
import java.awt.FlowLayout;
import java.awt.GridLayout;
import java.awt.Image;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JFrame;
/**
 * 
 * @author lannooo
 *
 */
public class IconDialog implements ActionListener {

 private JDialog dialog;
 private Client client;
 /**
  * 通過(guò)frame和客戶(hù)端對(duì)象來(lái)構(gòu)造
  * @param frame
  * @param client
  */
 public IconDialog(JFrame frame, Client client) {
  this.client = client;
  dialog = new JDialog(frame, "請(qǐng)選擇表情", true);
  /*16個(gè)表情*/
  JButton[] icon_button = new JButton[16];
  ImageIcon[] icons = new ImageIcon[16];
  /*獲得彈出窗口的容器，設(shè)置布局*/
  Container dialogPane = dialog.getContentPane();
  dialogPane.setLayout(new GridLayout(0, 4));
  /*加入表情*/
  for(int i=1; i<=15; i++){
   icons[i] = new ImageIcon("icon/"+i+".png");
   icons[i].setImage(icons[i].getImage().getScaledInstance(50, 50, Image.SCALE_DEFAULT));
   icon_button[i] = new JButton(""+i, icons[i]);
   icon_button[i].addActionListener(this);
   dialogPane.add(icon_button[i]);
  }
  dialog.setBounds(200,266,266,280);
  dialog.show();
 }

 @Override
 public void actionPerformed(ActionEvent e) {
  /*構(gòu)造emoji結(jié)構(gòu)的消息發(fā)送*/
  String cmd = e.getActionCommand();
  System.out.println(cmd);
  dialog.dispose();
  client.sendMsg("<emoji>"+cmd+"</emoji>", "message");
 }

}