-- coding:utf-8 --

Author GaoYuan

import socket
import re
import multiprocessing
import threading
import gevent

def service_client(client_socket):
"""为这个客户端返回数据"""

# 1.接收浏览器发过来的请求。即http请求
global response_headers, response_body

request = client_socket.recv(1024).decode("utf-8")
print(request)

# 按行切割获取的信息，拿到地址 GET /classic.css HTTP/1.1
# 处理多个请求
lines = request.splitlines()

# 正则匹配出来需要读取的文件 /classic.css
# result = re.match(r"[^/]*([^ ]*)", splits[0])
# print("*" * 20, result.group(1))

# 分割出需要读取的文件名字。GET /classic.css HTTP/1.1 ---->  /classic.css
if len(lines) <= 0:
    return

splits = lines[0].split(" ")

file_name = splits[1]
if file_name == "/":
    file_name = "index.html"

print("*" * 20, splits[1])

# 2.读取文件内容，返回http格式的数据，给浏览器
try:
    f = open("./html/" + file_name, "rb")
except:
    # 404
    response_headers = "HTTP/1.1 404 NOT FOUND\r\n"
    response_headers += "\r\n"
    response_body = "file not found".encode("utf-8")

else:
    response_headers = "HTTP/1.1 200 OK\r\n"
    response_headers += "\r\n"
    response_body = f.read()
    f.close()
finally:
    # 发送请求头
    client_socket.send(response_headers.encode("utf-8"))
    # 发送请求体
    client_socket.send(response_body)

# 关闭套接字
client_socket.close()

创建套接字

tcp_server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

设置当服务器先close 即服务器端4次挥手之后资源能够立即释放，这样就保证了，下次运行程序时 可以立即绑定7788端口

tcp_server_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)

绑定地址

tcp_server_socket.bind(("", 9099))

tcp_server_socket.listen(128)

while True:
# 接收消息
new_socket, addr = tcp_server_socket.accept()

# 创建协程，处理当多个客户端同时访问的问题，避免用户等待
gevent.spawn(service_client, new_socket).join()