Python Socket传输文件示例

#-*- coding: UTF-8 -*-import socket,time,SocketServer,struct,os,threadhost='192.168.50.74'port=12307s=socket.socket(socket.AF_INET,socket.SOCK_STREAM) #定义socket类型s.bind((host,port)) #绑定需要监听的Ip和端口号，tuple格式s.listen(1) def conn_thread(connection,address):   while True:    try:      connection.settimeout(600)      fileinfo_size=struct.calcsize('128sl')       buf = connection.recv(fileinfo_size)      if buf: #如果不加这个if，第一个文件传输完成后会自动走到下一句        filename,filesize =struct.unpack('128sl',buf)         filename_f = filename.strip('/00')        filenewname = os.path.join('e://',('new_'+ filename_f))        print 'file new name is %s, filesize is %s' %(filenewname,filesize)        recvd_size = 0 #定义接收了的文件大小        file = open(filenewname,'wb')        print 'stat receiving...'        while not recvd_size == filesize:          if filesize - recvd_size > 1024:            rdata = connection.recv(1024)            recvd_size += len(rdata)          else:            rdata = connection.recv(filesize - recvd_size)             recvd_size = filesize          file.write(rdata)        file.close()        print 'receive done'        #connection.close()    except socket.timeout:      connection.close()while True:  connection,address=s.accept()  print('Connected by ',address)  #thread = threading.Thread(target=conn_thread,args=(connection,address)) #使用threading也可以  #thread.start()  thread.start_new_thread(conn_thread,(connection,address)) s.close()

#-*- coding: UTF-8 -*-import socket,time,SocketServer,struct,oshost='192.168.50.74'port=12307ADDR=(host,port)class MyRequestHandler(SocketServer.BaseRequestHandler):    def handle(self):       print('connected from:', self.client_address)    while True:      fileinfo_size=struct.calcsize('128sl') #定义文件信息。128s表示文件名为128bytes长，l表示一个int或log文件类型，在此为文件大小      self.buf = self.request.recv(fileinfo_size)      if self.buf: #如果不加这个if，第一个文件传输完成后会自动走到下一句        self.filename,self.filesize =struct.unpack('128sl',self.buf) #根据128sl解包文件信息，与client端的打包规则相同        print 'filesize is: ',self.filesize,'filename size is: ',len(self.filename) #文件名长度为128，大于文件名实际长度        self.filenewname = os.path.join('e://',('new_'+ self.filename).strip('/00')) #使用strip()删除打包时附加的多余空字符        print self.filenewname,type(self.filenewname)        recvd_size = 0 #定义接收了的文件大小        file = open(self.filenewname,'wb')        print 'stat receiving...'        while not recvd_size == self.filesize:          if self.filesize - recvd_size > 1024:            rdata = self.request.recv(1024)            recvd_size += len(rdata)          else:            rdata = self.request.recv(self.filesize - recvd_size)             recvd_size = self.filesize          file.write(rdata)        file.close()        print 'receive done'    #self.request.close()tcpServ = SocketServer.ThreadingTCPServer(ADDR, MyRequestHandler) print('waiting for connection...' )tcpServ.serve_forever()

#-*- coding: UTF-8 -*-import socket,os,structs = socket.socket(socket.AF_INET,socket.SOCK_STREAM)s.connect(('192.168.50.74',12307))while True:    filepath = raw_input('Please Enter chars:/r/n')  if os.path.isfile(filepath):    fileinfo_size=struct.calcsize('128sl') #定义打包规则    #定义文件头信息，包含文件名和文件大小    fhead = struct.pack('128sl',os.path.basename(filepath),os.stat(filepath).st_size)    s.send(fhead)     print 'client filepath: ',filepath    # with open(filepath,'rb') as fo: 这样发送文件有问题，发送完成后还会发一些东西过去    fo = open(filepath,'rb')    while True:      filedata = fo.read(1024)      if not filedata:        break      s.send(filedata)    fo.close()    print 'send over...'    #s.close()