python-协程、线程、进程多任务实现http 服务器

import socket
from multiprocessing import Process
import threading
from gevent import monkey
import gevent
import re

monkey.patch_all()


def handle_client(client_socket):
    """
    处理客户端请求
    """
    request_data = client_socket.recv(1024).decode('utf-8')

    request_lines = request_data.splitlines()
    ret = re.match(r'[^/]+(/[^ ]*)', request_lines[0])
    print(">>", ret.group(1))
    # 构造响应数据
    response_start_line = "HTTP/1.1 200 OK
"
    response_headers = "Server: My server
"
    # response_body = "<h1>Python HTTP Test</h1>"

    f = open('index.html', 'rb')
    response_body = f.read()
    f.close()
    response = response_start_line + response_headers + "
" #+ response_body

    # 向客户端返回响应数据
    client_socket.send(bytes(response, "utf-8"))
    client_socket.send(response_body)
    # 关闭客户端连接
    client_socket.close()


if __name__ == "__main__":
    server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    server_socket.bind(("", 1122))
    server_socket.listen(128)

    while True:
        client_socket, client_address = server_socket.accept()
        print("[%s, %s]用户连接上了" % client_address)
        '''
         # 下面三行为多进程（进程需要close，因为子进程复制了进程的代码）
        # handle_client_process = Process(target=handle_client, args=(client_socket,))
        # handle_client_process.start()
        # client_socket.close()
        '''
        '''
        # 下面两行为多线程
        t1 = threading.Thread(target=handle_client, args=(client_socket,))
        t1.start()
        '''
        # 下面为协程
        g1 = gevent.spawn(handle_client, client_socket)