[Python-*-读书]Python基础教程--虚拟茶话会

总的来说是一个只支持一个聊天室的服务器端 客户端使用telnet

书籍下载地址：Python资料汇总

Python教程  这里是第二十四章的源码，练习研究之用

#coding:utf8 #python2.7 chatSer2.py#稍微复杂一点的聊天室服务器'''用python启动服务 telnet连接之后就可以变成简单的聊天服务器第一次登陆：login name 登出： logout说话： say 查看谁登陆过服务器：who 查看同一个房间的人 : look 简单例子：telnet localhost 50005Welcome to TestChatlogin tianshidiyu has entered the room.nihUnknown command: ihsay nihaotianshi: nihaodiyu: niyehao'''from asyncore import dispatcher from asynchat import async_chatimport socketimport asyncoreHOST = ''PORT = 50005SERVERCONF = (HOST,PORT)NAME = 'TestChat'class EndSession(Exception):    pass class CommandHandler(object):    '''    命令解析类    '''        def unknown(self,session,cmd):        '响应未知的命令'        session.push('Unknown command:%s \r\n' %cmd)    def handle(self,session,line):        '处理从客户端发来的信息 解析命令和内容'        if not line:            print 'please write a command...'                    if not line.strip():             print 'get a line :',line             return                parts = line.split(' ',1)        #命令分离        cmd = parts[0]        try:            line = parts[1].strip()        except IndexError:            line = ''        #调用相应的方法处理命令        meth = getattr(self, 'do_'+cmd, None)        try:            #调用命令对应的方法            meth(session,line)        except TypeError:            self.unknown(session, cmd)            class Room(CommandHandler):    '''    包括一个或多个用户（会话）的泛型环境。负责处理基本的命令和广播    '''        def __init__(self,server):        self.server = server        self.sessions = []            def add(self, session):        'add a user'        self.sessions.append(session)            def remove(self,session):        'a user leave'        self.sessions.remove(session)            def broadcast(self,line):        'give all session in the room a line'        for session in self.sessions:            session.push(line)            def do_logout(self,session,line):        '响应登出命令'        raise EndSession    class LoginRoom(Room):    '''    为刚刚登陆的用户准备的房间    '''        def add(self,session):        Room.add(self, session)        self.broadcast('Welcome to %s \r\n' %self.server.name)            def unknown(self, session, cmd):        session.push('Please login \nUse "login <nick>"\r\n')            def do_login(self, session, line):        name = line.strip()        #登陆时必须指定一个用户名        if not name:            session.push('Please enter a name\r\n')        elif name in self.server.users: #用户名不可重复 ？            session.push('The name "%s" is taken! \r\n' %name)            session.push('Please try again.\r\n')        else:            session.name = name            session.enter(self.server.main_room)            class ChatRoom(Room):    '''    为多用户在一起聊天准备的房间    '''    def add(self, session):        #tell all new one come        self.broadcast(session.name +' has entered the room. \r\n')        self.server.users[session.name] = session        Room.add(self, session)            def remove(self, session):        Room.remove(self. session)        #tell all the user logout        self.broadcast(session.name +' has left the room \r\n')            def do_say(self, session, line):        self.broadcast(session.name+': '+line+'\r\n')            def do_look(self, session, line):        'look who is in the room'        session.push('The following are in this room: \r\n')        for other in self.sessions:            session.push(other.name+'\r\n')                def do_who(self, session, line):        '查看谁登陆过'        session.push('The following are logged in: \r\n')        for name in self.server.users:            session.push(name+ '\r\n')class LogoutRoom(Room):    '''    为单个用户准备的房间，只用于将用户从服务器移除    '''        def add(self, session):        try:            del self.server.users[session.name]        except KeyError:            pass         class ChatSession(async_chat):    '''    单个会话，负责和用户通信    '''        def __init__(self, server, sock):        async_chat.__init__(self, sock)        self.server = server        self.set_terminator('\r\n')        self.data = []        self.name = None        #所有会话从这里登入        self.enter(LoginRoom(server))    def enter(self, room):        try:             cur = self.room        except AttributeError:            pass         self.room = room         room.add(self)            def collect_incoming_data(self, data):        self.data.append(data)            def found_terminator(self):        line = ''.join(self.data)        self.data = []        try:            self.room.handle(self, line)        except EndSession:            self.handle_close()            def handle_close(self):        async_chat.handle_close(self)        self.enter(LogoutRoom(self.server))        class ChatServer(dispatcher):    '''    只有一个房间的聊天服务器    '''        def __init__(self, serverconf, name):        dispatcher.__init__(self)        self.create_socket(socket.AF_INET,socket.SOCK_STREAM)        self.set_reuse_addr() #可以重用上一次的端口号        self.bind(SERVERCONF)        self.listen(5)        self.name = name         self.users = {}        self.main_room = ChatRoom(self)        def handle_accept(self):        conn, addr = self.accept()        ChatSession(self, conn)#主函数      if __name__=='__main__':    s = ChatServer(SERVERCONF,NAME)    try:        asyncore.loop()    except KeyboardInterrupt:        print 'server Exception ...quit'                                     

结果如图所示