Python SocketServer 适用于本地主机但不适用于服务器

Question

下面是我目前使用的代码:

#! /usr/bin/python
print 'Content-type: application'
print '\n\n'

import SocketServer
import cgitb
cgitb.enable()

class MyTCPHandler(SocketServer.BaseRequestHandler):
    """
    The RequestHandler class for our server.

    It is instantiated once per connection to the server, and must
    override the handle() method to implement communication to the
    client.
    """

    def handle(self):
        # self.request is the TCP socket connected to the client
        self.data = self.request.recv(1024).strip()
        print "{} wrote:".format(self.client_address[0])
        print self.data
        # just send back the same data, but upper-cased
        self.request.sendall(self.data.upper())
        self.request.sendall('Data Received')

if __name__ == "__main__":
    HOST, PORT = "localhost", 9989

    # Create the server, binding to localhost on port 9989
    server = SocketServer.TCPServer((HOST, PORT), MyTCPHandler)

    # Activate the server; this will keep running until you
    # interrupt the program with Ctrl-C
    server.serve_forever()

代码在本地主机上按预期工作，但在公共(public)服务器上没有响应。

此外，执行代码两次会导致以下错误消息:

error: (98, 'Address already in use')

Answer 1

error: (98, 'Address already in use')

为此你需要这个:

socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)

---

but is unresponsive on public server.

通常在共享主机的情况下，您无法通过创建套接字来完成。在任何情况下，您都可以尝试以下操作，看看是否有帮助:

HOST, PORT = "", 9989 # or (public_IP,9989)