每5秒钟循环一次套接字请求(Python) [英] Loop socket request every 5 seconds (Python)

问题描述

我如何每5秒循环以下代码:

How would i loop every 5 seconds the following code :

sendSocket = socket.socket (socket.AF_INET, socket.SOCK_STREAM)
sendSocket.connect ( ( 'CENSORED', 1234 ) )
sendSocket.send ( 'request posit' )
data = sendSocket.recv( 100 )
chatLog.insert(END, data)

我希望客户端每隔5秒从服务器接收一次数据，我做了一段时间的True循环(lol)，程序接口甚至没有加载，并且服务器被客户端淹没了.

I want a client to recieve data every 5 seconds from a server, i did a while True loop (lol) and the program interface didnt even load and the server got flooded by the client.

我只希望服务器使用存储在服务器上的变量每5秒更新一次客户端，而无需用户手动按下按钮.

I just want the server to update the client every 5 seconds with a variable that is stored on the server, without a user having to manually press a button.

import socket, time
from Tkinter import *

## Main Window
gui = Tk()
gui.geometry('450x350-5+40')
gui.minsize(450,350)
gui.maxsize(450,350)
userInput = StringVar()

## Main window that displays user and server input.
chatLog = Text(gui, width=60, height=15)
chatLog.pack()

## Send Packet function, main part of the script. Sends whatever the user puts in.
def sendChat():
    sendSocket = socket.socket (socket.AF_INET, socket.SOCK_STREAM)
    sendSocket.connect ( ( 'nope.com', 1234 ) )
    sendSocket.send ( e.get() )
    data = sendSocket.recv( 100 )
    chatLog.insert(END, data)
    sendSocket.close()

while True:
    sendSocket = socket.socket (socket.AF_INET, socket.SOCK_STREAM)
    sendSocket.connect ( ( 'nope.com', 1234 ) )
    sendSocket.send ( 'request posit' )
    data = sendSocket.recv( 100 )
    chatLog.insert(END, data)
    sendSocket.close()
    time.sleep (5.0)

## Submit text button
b = Button(gui, text="Send", command=sendChat )
b.pack()

## Text entry box
e = Entry(gui, textvariable=userInput)
e.pack()

gui.mainloop()

推荐答案

查看此问题:

如何在等待套接字时使tkinter响应事件数据?

您也可以使用after_idle

You can also use after_idle

def read_the_socket():
    sendSocket.send ( 'request posit' )
    data = sendSocket.recv( 100 )
    gui.after(5000, read_the_socket)


gui.after_idle(read_the_socket)

after_idle计划在GUI不再忙后调用的函数.您还可以使用.after(time，function)延迟特定的时间，然后再次调用该函数.

after_idle schedules a function the be called once the GUI isn't busy anymore. You can also use .after(time, function) to delay for a specific amount of time before calling the function again.

最后，您应该真正保持与服务器的连接，而不必每次都重新连接.

Finally, you should really maintain your connection to the server not reconnect each time.

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