python SocketServer.ThreadingTCPServer - 程序重启后无法绑定到地址
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/2274320/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
SocketServer.ThreadingTCPServer - Cannot bind to address after program restart
提问by Justin Ethier
As a follow-up to cannot-bind-to-address-after-socket-program-crashes, I was receiving this error after my program was restarted:
作为cannot-bind-to-address-after-socket-program-crashes的后续，我在程序重新启动后收到此错误：
socket.error: [Errno 98] Address already in use
socket.error: [Errno 98] 地址已被使用
In this particular case, instead of using a socket directly, the program is starting its own threaded TCP server:
在这种特殊情况下，程序不是直接使用套接字，而是启动自己的线程 TCP 服务器：
httpd = SocketServer.ThreadingTCPServer(('localhost', port), CustomHandler)
httpd.serve_forever()
How can I fix this error message?
如何修复此错误消息？
回答by Lynn
The above solution didn't work for me but this one did:
上面的解决方案对我不起作用，但这个解决方案：
SocketServer.ThreadingTCPServer.allow_reuse_address = True
server = SocketServer.ThreadingTCPServer(("localhost", port), CustomHandler)
server.serve_forever()
回答by Justin Ethier
In this particular case, .setsockopt(SOL_SOCKET, SO_REUSEADDR, 1)may be called from the TCPServer class when the allow_reuse_addressoption is set. So I was able to solve it as follows:
在这种特殊情况下，.setsockopt(SOL_SOCKET, SO_REUSEADDR, 1)可以在allow_reuse_address设置选项时从 TCPServer 类调用。所以我能够解决它如下：
httpd = SocketServer.ThreadingTCPServer(('localhost', port), CustomHandler, False) # Do not automatically bind
httpd.allow_reuse_address = True # Prevent 'cannot bind to address' errors on restart
httpd.server_bind() # Manually bind, to support allow_reuse_address
httpd.server_activate() # (see above comment)
httpd.serve_forever()
Anyway, thought this might be useful. The solution will differ slightly in Python 3.0
无论如何，认为这可能有用。解决方案在 Python 3.0 中会略有不同
