Python--Socket样例

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SocketServer包对socket包进行了包装（封装），使得创建socket服务非常简单。

TCPServer+BaseRequestHandler

使用TCPServer和BaseRequestHandler编写socket服务的样例。

#-*- coding:utf-8 -*-from SocketServer import TCPServer, BaseRequestHandlerimport tracebackclass MyBaseRequestHandlerr(BaseRequestHandler):    """    #从BaseRequestHandler继承，并重写handle方法    """    def handle(self):        #循环监听（读取）来自客户端的数据        while True:            #当客户端主动断开连接时，self.recv(1024)会抛出异常            try:                #一次读取1024字节,并去除两端的空白字符(包括空格,TAB,\r,\n)                data = self.request.recv(1024).strip()                                #self.client_address是客户端的连接(host, port)的元组                print "receive from (%r):%r" % (self.client_address, data)                                #转换成大写后写回(发生到)客户端                self.request.sendall(data.upper())            except:                traceback.print_exc()                breakif __name__ == "__main__":    #telnet 127.0.0.1 9999    host = ""       #主机名，可以是ip,像localhost的主机名,或""    port = 9999     #端口    addr = (host, port)        #购置TCPServer对象，    server = TCPServer(addr, MyBaseRequestHandlerr)        #启动服务监听    server.serve_forever()

TCPServer+StreamRequestHandler

使用TCPServer和StreamRequestHandler编写socket服务的样例。
StreamRequestHandler从BaseRequestHandler，并做了封装，使得读写数据更容易。

#-*- coding:utf-8 -*-from SocketServer import TCPServer, StreamRequestHandlerimport tracebackclass MyStreamRequestHandlerr(StreamRequestHandler):    """    #继承StreamRequestHandler，并重写handle方法    #（StreamRequestHandler继承自BaseRequestHandler）    """    def handle(self):        while True:            #客户端主动断开连接时，self.rfile.readline()会抛出异常            try:                #self.rfile类型是socket._fileobject,读写模式是"rb",方法有                #read,readline,readlines,write(data),writelines(list),close,flush                data = self.rfile.readline().strip()                print "receive from (%r):%r" % (self.client_address, data)                                #self.wfile类型是socket._fileobject,读写模式是"wb"                self.wfile.write(data.upper())            except:                traceback.print_exc()                breakif __name__ == "__main__":    host = ""       #主机名，可以是ip,像localhost的主机名,或""    port = 9999     #端口    addr = (host, port)        server = TCPServer(addr, MyStreamRequestHandlerr)    server.serve_forever()

ThreadingTCPServer+StreamRequestHandler=多线程socket

使用ThreadingTCPServer和StreamRequestHandler编写socket服务的样例。
ThreadingTCPServer从ThreadingMixIn和TCPServer继承，实现多线程。

#-*- coding:utf-8 -*-from SocketServer import ThreadingTCPServer, StreamRequestHandlerimport tracebackclass MyStreamRequestHandlerr(StreamRequestHandler):    def handle(self):        while True:            try:                data = self.rfile.readline().strip()                print "receive from (%r):%r" % (self.client_address, data)                self.wfile.write(data.upper())            except:                traceback.print_exc()                breakif __name__ == "__main__":    host = ""       #主机名，可以是ip,像localhost的主机名,或""    port = 9999     #端口    addr = (host, port)        #ThreadingTCPServer从ThreadingMixIn和TCPServer继承    #class ThreadingTCPServer(ThreadingMixIn, TCPServer): pass    server = ThreadingTCPServer(addr, MyStreamRequestHandlerr)    server.serve_forever()

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