Python -- 网络编程 -- Socket发送文件

客户端如果直接send两次，一次发文件名，一次发文件内容

服务端接受的时候会一起接收，不知怎么分开发送，或者分开接收， 或者全部接收再解析内容

今天发现传送mp3文件的时候没问题，传送文本文件的话，以前标题和内容就黏糊一块了，今天似乎也没事，搞不懂

1.文件服务端（fileServer.py）：

 import sys, os, threading, socket
 from PyQt4 import QtGui, QtCore

 class ListenThread(threading.Thread):
     """监听线程"""
     def __init__(self, server, txt):
         super(ListenThread, self).__init__()
         self.server = server
         self.txt = txt
         self.files = ['FileServer.py']
     def run(self):
         while 1:
             # try:
                 self.client, addr = self.server.accept()
                 self.txt.append('连接来自{}:{}\n'.format(addr[0], addr[1]))
                 data = self.client.recv(1024).decode('utf-8')
                 self.txt.append('收到文件:{}\n'.format(data))
                 file = os.open('D:/'+data[:3], os.O_WRONLY | os.O_CREAT | os.O_EXCL | os.O_BINARY)
                 rdata = self.client.recv(1024)
                 while rdata:
                     os.write(file, rdata)
                     rdata = self.client.recv(1024)
                 os.close(file)
                 self.client.close()
                 self.txt.append('文件接受完成,客户端关闭\n')
             # except:
                 # pass
                 # self.txt.append('连接关闭\n')
                 # break##############

 class ControlThread(threading.Thread):
     """控制线程"""
     def __init__(self, txt):
         super(ControlThread, self).__init__()
         self.txt = txt
         self.event = threading.Event()
         self.event.clear()
     def run(self):
         self.server = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
         self.server.bind(('', 1051))
         self.server.listen(1)
         self.txt.append('正在等待连接。。。\n')
         self.lsn = ListenThread(self.server, self.txt)
         self.lsn.setDaemon(True)
         self.lsn.start()
         self.event.wait()
         self.server.close()
     def stop(self):
         self.event.set()
 class MyWindow(QtGui.QWidget):
     def __init__(self):
         super(MyWindow, self).__init__()
         self.setWindowTitle('文件服务器')
         self.resize(485, 300)

         self.btn1 = QtGui.QPushButton('开始监听')
         self.btn2 = QtGui.QPushButton('结束监听')
         self.txt = QtGui.QTextEdit()

         grid = QtGui.QGridLayout()
         grid.addWidget(self.btn1, 0, 0)
         grid.addWidget(self.btn2, 0, 1)
         grid.addWidget(self.txt, 1, 0, 1, 2)
         self.setLayout(grid)

         self.connect(self.btn1, QtCore.SIGNAL('clicked()'), self.onBtn1)
         self.connect(self.btn2, QtCore.SIGNAL('clicked()'), self.onBtn2)
     def onBtn1(self):
         self.ctrl = ControlThread(self.txt)
         self.ctrl.setDaemon(True)
         self.ctrl.start()
     def onBtn2(self):
         self.ctrl.stop()

 app = QtGui.QApplication(sys.argv)
 mywindow = MyWindow()
 mywindow.show()
 app.exec_()

2.文件客户端（fileClient.py）：

 import sys, os, socket
 from PyQt4 import QtGui, QtCore

 class MyWindow(QtGui.QWidget):
     def __init__(self):
         super(MyWindow, self).__init__()
         self.setWindowTitle('文件客户端')
         self.resize(485, 300)

         self.lblIp = QtGui.QLabel('IP')
         self.lblPort = QtGui.QLabel('Port')
         self.lblFile = QtGui.QLabel('File')
         self.txtIp = QtGui.QLineEdit('127.0.0.1')
         self.txtPort = QtGui.QLineEdit(')
         self.txtFile = QtGui.QLineEdit()
         self.btnBrowse = QtGui.QPushButton('浏览')
         self.btnSend = QtGui.QPushButton('发送')
         self.btnSend.setMaximumWidth(150)

         grid = QtGui.QGridLayout()
         grid.addWidget(self.lblIp, 0, 0)
         grid.addWidget(self.lblPort, 1, 0)
         grid.addWidget(self.lblFile, 2, 0)
         grid.addWidget(self.txtIp, 0, 1)
         grid.addWidget(self.txtPort, 1, 1)
         grid.addWidget(self.txtFile, 2, 1)
         grid.addWidget(self.btnBrowse, 2, 2)
         grid.addWidget(self.btnSend, 3, 1)
         self.setLayout(grid)

         self.connect(self.btnBrowse, QtCore.SIGNAL('clicked()'), self.onBtnBrowse)
         self.connect(self.btnSend, QtCore.SIGNAL('clicked()'), self.onBtnSend)
     def onBtnBrowse(self):
         filename = QtGui.QFileDialog.getOpenFileName(self, '打开文件', filter='全部文件(*.*)')
         if filename:
             self.txtFile.setText(filename)

     def onBtnSend(self):
         # try:
             ip = self.txtIp.text()
             port = self.txtPort.text()
             filename = self.txtFile.text()
             name = filename.split('/')[-1]
             client = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
             client.connect((ip, int(port)))
             client.send(name.encode('utf-8'))
             file = os.open(filename, os.O_RDONLY | os.O_EXCL | os.O_BINARY)
             data = os.read(file, filename)
             while data:
                 client.send(data)
                 data = os.read(file, 1024)
             os.close(file)
             client.close()
         # except:
             # pass
             # print('发送错误！')
 app = QtGui.QApplication(sys.argv)
 mywindow = MyWindow()
 mywindow.show()
 app.exec_()