使用高速公路作為 Websocket 工廠

Autobahn 包可用於 Python Web 套接字伺服器工廠。

Python Autobahn 包文件

要安裝，通常只需使用 terminal 命令即可

（對於 Linux）：

sudo pip install autobahn

（對於 Windows）：

python -m pip install autobahn

然後，可以在 Python 指令碼中建立一個簡單的 echo 伺服器：

from autobahn.asyncio.websocket import WebSocketServerProtocol
class MyServerProtocol(WebSocketServerProtocol):
    '''When creating server protocol, the
    user defined class inheriting the 
    WebSocketServerProtocol needs to override
    the onMessage, onConnect, et-c events for 
    user specified functionality, these events 
    define your server's protocol, in essence'''
    def onMessage(self,payload,isBinary):
        '''The onMessage routine is called 
        when the server receives a message.
        It has the required arguments payload 
        and the bool isBinary. The payload is the 
        actual contents of the "message" and isBinary
        is simply a flag to let the user know that 
        the payload contains binary data. I typically 
        elsewise assume that the payload is a string.
        In this example, the payload is returned to sender verbatim.'''
        self.sendMessage(payload,isBinary)
if__name__=='__main__':
    try:
        importasyncio
    except ImportError:
        '''Trollius = 0.3 was renamed'''
        import trollius as asyncio
    from autobahn.asyncio.websocketimportWebSocketServerFactory
    factory=WebSocketServerFactory()
    '''Initialize the websocket factory, and set the protocol to the 
    above defined protocol(the class that inherits from 
    autobahn.asyncio.websocket.WebSocketServerProtocol)'''
    factory.protocol=MyServerProtocol
    '''This above line can be thought of as "binding" the methods
    onConnect, onMessage, et-c that were described in the MyServerProtocol class
    to the server, setting the servers functionality, ie, protocol'''
    loop=asyncio.get_event_loop()
    coro=loop.create_server(factory,'127.0.0.1',9000)
    server=loop.run_until_complete(coro)
    '''Run the server in an infinite loop'''
    try:
        loop.run_forever()
    except KeyboardInterrupt:
        pass
    finally:
        server.close()
        loop.close()

在此示例中，正在埠 9000 上的 localhost(127.0.0.1) 上建立伺服器。這是偵聽 IP 和埠。這是重要的資訊，因為使用它，你可以從調變解調器識別計算機的 LAN 地址和埠，儘管你擁有計算機的任何路由器。然後，使用谷歌調查你的 WAN IP，你可以設計你的網站，以便在埠 9000（在此示例中）將 WebSocket 訊息傳送到你的 WAN IP。

重要的是你從你的調變解調器向前移動，這意味著如果你有菊花連結到調變解調器的路由器，進入調變解調器的配置設定，從調變解調器埠轉發到連線的路由器，等等，直到你的計算機的最終路由器連線到具有在調變解調器埠 9000（在該示例中）上接收的資訊被轉發給它。