Python多线程启动http.server

OS: Windows 8.1 with update

关键字：Python3.4， http.server， Thread

例子代码如下：

import os
from threading import Thread
import time
import webbrowser

port_number = "8000"

def run_on(port):  
    os.system("python -m http.server " + port)
   
if __name__ == "__main__":
    server = Thread(target=run_on, args=[port_number])
    #run_on(port_number) #Run in main thread
    #server.daemon = True # Do not make us wait for you to exit  
    server.start()
    time.sleep(2) #Wait to start the server first

def test():
    url = "http://localhost:" + port_number
    webbrowser.open(url)
    print(url + " is opened in browser")

test()

代码解释：

1. os.system("python -m http.server " + port)，“python -m http.server 8000”是一个cmd，能够启动一个http server。

2. server = Thread(target=run_on, args=[port_number])， 创建一个线程用来启动http server。如果启动在主线程里面启动http server，将会阻塞主线程，而不能执行下面的代码。

3. server.start()， 启动线程。

4. time.sleep(2)，等待启动http server。

5. webbrowser.open(url)， 打开url。

另外一个例子启动/停止服务器

from threading import Thread
import webbrowser, http.server, socketserver
import time;

port_number = 8000

server = None
def startServer(port):
    Handler = http.server.SimpleHTTPRequestHandler
    global server
    server = socketserver.TCPServer(("", port), Handler)

    print("Start server at port", port)
    server.serve_forever()
   
def start(port):
    thread = Thread(target=startServer, args=[port])
    thread.start()
    
    startTime = int(time.time())
    while not server:
        if int(time.time()) > startTime + 60:
            print("Time out")
            break
    return server

def stop():
    if server:
        server.shutdown()
        
def openUrl():
    url = "http://localhost:" + str(port_number)
    webbrowser.open(url)
    print(url + " is opened in browser")

if __name__ == "__main__":
    start(port_number)
    openUrl()

参考：

https://docs.python.org/3/library/http.server.html#http.server.HTTPServer

https://docs.python.org/3/library/threading.html?highlight=thread#module-threading