Python，如何通过 TCP 发送数据 [英] Python, How to Send data over TCP

问题描述

我需要创建一个简单的服务器来监听 TCP 连接.如果它接收到文本 on 或 off，则它发送(回显)回 success.接收部分正在工作，但现在我需要它来发回 success.

I need to create a simple server that listens for TCP connections. If it receives text on<EOF> or off<EOF> then it sends (echo) back success. The receiving part is working, but now i need it to send back success.

代码:

# import threading
import SocketServer

class TCPHandler(SocketServer.BaseRequestHandler): 

   def handle(self):
      self.msg = self.request.recv(1024).strip()
      if self.msg == "on<EOF>":
         print "Turning On..."
         #ECHO "SUCCESS<EOF>"        <----- I need the server to echo back "success"
      if self.msg == "off<EOF>":
         print "Turning Off..."
         #ECHO "SUCCESS<EOF>"        <----- I need the server to echo back "success"


      if __name__ == "__main__": 
         host, port = '192.168.1.100', 1100

  # Create server, bind to local host and port 
  server = SocketServer.TCPServer((host,port),TCPHandler)

  print "server is starting on ", host, port

  # start server
  server.serve_forever()

推荐答案

好吧，我是在学习一个非常好的教程前一天完成的，找不到链接，但这是代码

Well i did it a day before following a very good tutorial, cant find the link but here is the code

import socket

host = socket.gethostname()
port = 12345                   # The same port as used by the server
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect((host, port))
s.sendall(b'Hello, world')
data = s.recv(1024)
s.close()
print('Received', repr(data))

服务器

import socket

host = ''        # Symbolic name meaning all available interfaces
port = 12345     # Arbitrary non-privileged port
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.bind((host, port))

print host , port
s.listen(1)
conn, addr = s.accept()
print('Connected by', addr)
while True:

    try:
        data = conn.recv(1024)

        if not data: break

        print "Client Says: "+data
        conn.sendall("Server Says:hi")

    except socket.error:
        print "Error Occured."
        break

conn.close()

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