聊天室——多线程应用

package com.itshixun.steven.net;

import java.io.IOException;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;

public class ChattingRoom {

 /**
  * map中key是nickName
  */
 private Map playerMap = new HashMap();

 public Map getPlayerMap() {
  return playerMap;
 }

 public void setPlayerMap(Map playerMap) {
  this.playerMap = playerMap;
 }

 /**
  * 说话
  *
  * @param msg
  */
 public synchronized void threadSay(String msg) {
  Player p = (Player) Thread.currentThread();

  if (msg.equalsIgnoreCase("bye")) {
   notifyToAllPlayer(p.getName() + " 退出了聊天室！");
   try {
    p.getSocket().close();
   } catch (IOException e) {
   }
   // 从map中删除!
   getPlayerMap().remove(p.getName());

  } else {

   notifyToAllPlayer(new Date().toLocaleString() + " " + p.getName()
     + " 说: " + msg);
   p.getWriter().println("请输入您的发言(输入/"bye/"退出):");
  }

  // for (Map.Entry entry : getPlayerMap().entrySet()) {
  // System.out.println(entry.getValue().getName() + "是否关闭:"
  // + entry.getValue().getSocket().isClosed());
  //  }

 }

 public synchronized void notifyToAllPlayer(String msg) {
  System.out.println(msg);
  for (Map.Entry entry : getPlayerMap().entrySet()) {
   entry.getValue().getWriter().println(msg);
  }
 }

 public synchronized void addPlayer(Player player) {

 }

 public synchronized boolean checkName(Player player) {
  if (player.getName() == null || player.getName().length() == 0) {
   return false;
  } else {
   if (!this.getPlayerMap().containsKey(player.getName())) {
    getPlayerMap().put(player.getName(), player);
    notifyToAllPlayer("欢迎 " + player.getName() + " 进入!!!");
    return true;
   } else {
    player.getWriter().println("昵称已存在，请修改！");
    return false;
   }
  }
 }

 public synchronized void removePlayer(Player player) {
 }

}

 

 

第二个类：

package com.itshixun.steven.net;

import java.io.IOException;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.Date;

public class ChattingServer {
 private ServerSocket ss;
 private static final int serverPort = 8888;
 private ChattingRoom room;

 public ChattingServer() {
  this.setRoom(new ChattingRoom());
 }

 public void start() {
  try {
   this.setSs(new ServerSocket(serverPort));
   System.out.println("服务器启动(port:" + serverPort + ") at "
     + new Date().toLocaleString());
   while (true) {
    Socket s = ss.accept();
    new Player(s, getRoom()).start();
   }
  } catch (IOException e) {
   e.printStackTrace();
  }
 }

 public void end() {
  System.exit(0);
 }

 public ServerSocket getSs() {
  return ss;
 }

 public void setSs(ServerSocket ss) {
  this.ss = ss;
 }

 public static int getServerPort() {
  return serverPort;
 }

 public ChattingRoom getRoom() {
  return room;
 }

 public void setRoom(ChattingRoom room) {
  this.room = room;
 }

}

 

 

第三个类：

package com.itshixun.steven.net;

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

public class Player extends Thread {
 private Socket socket;
 private String nickName;
 private ChattingRoom room;

 private BufferedReader reader;
 private PrintWriter writer;

 public BufferedReader getReader() {
  return reader;
 }

 public void setReader(BufferedReader reader) {
  this.reader = reader;
 }

 public PrintWriter getWriter() {
  return writer;
 }

 public void setWriter(PrintWriter writer) {
  this.writer = writer;
 }

 public ChattingRoom getRoom() {
  return room;
 }

 public void setRoom(ChattingRoom room) {
  this.room = room;
 }

 public Socket getSocket() {
  return socket;
 }

 public void setSocket(Socket socket) {
  this.socket = socket;
 }

 public String getNickName() {
  return nickName;
 }

 public void setNickName(String nickName) {
  this.nickName = nickName;
 }

 public Player(Socket socket, ChattingRoom room) {
  super();
  this.socket = socket;
  this.room = room;
 }

 @Override
 public void run() {
  try {
   // 设置输入输出对象
   this.setReader(new BufferedReader(new InputStreamReader(this
     .getSocket().getInputStream())));
   this.setWriter(new PrintWriter(this.getSocket().getOutputStream(),true));

   // 处理登记手续;
   do {
    this.getWriter().println("请输入昵称：");
    this.setName(this.getReader().readLine());
   } while (!getRoom().checkName(this));

   //循环说话
   try {
    while (true) {
     String msg = this.getReader().readLine();
     getRoom().threadSay(msg);
    }
   } catch (Exception e) {
    //使之不处理socket关闭异常!
   }

  } catch (IOException e) {
   e.printStackTrace();
  }
 }

 public synchronized void writeMessage(String msg) {
  writer.append(msg);
 }

}

 

 

运行类：

package com.itshixun.steven.net;

public class Run {

 public static void main(String[] args) {
  ChattingServer s = new ChattingServer();
  s.start();
 }

}