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Write a simple web server in python

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Release： 2018-06-02 14:23:49

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This article mainly introduces about writing a simple web server in Python, which has certain reference value. Now I share it with everyone. Friends in need can refer to it

IDE: Pycharm

sever.py

#!/bin/python
#-*- coding: UTF-8 -*-
#文件名：server.py
#create by wzh 2017/10/26
import socket  #导入socket模块
import re
from multiprocessing import Process #导入进程模块
#设置静态文件根目录
HTML_ROOT_DIR=&#39;./html&#39;
def handle_client(client_socket):
  """处理客户端连接请求"""
  request_data=client_socket.recv(1024)
  print(request_data)
  request_lines=request_data.splitlines()
  for line in request_lines:
    print(line)
  #&#39;GET / HTTP/1.1&#39;
  request_start_line=request_lines[0].decode("utf-8")
  print("*"*10)
  print(request_start_line)
  #提取用户请求的文件名
  file_name=re.match(r"\w+ +(/[^ ]*) ",str(request_start_line)).group(1)
  if "/" == file_name:
    file_name=&#39;/index.html&#39;
  #打开文件，读取内容
  try:
    file=open(HTML_ROOT_DIR+file_name,"rb")
  except IOError:
    response_start_line="HTTP/1.1 404 Not Found\r\n"
    response_heads="Server: My server\r\n"
    response_body="The file not found!"
  else:
    file_data=file.read()
    file.close()
    response_start_line="HTTP/1.1 200 ok\r\n"
    response_heads="Server: My server\r\n"
    response_body=file_data.decode("utf-8")
  response=response_start_line+response_heads+"\r\n"+response_body
  print("response data:",response)
  client_socket.send(bytes(response,"utf-8"))
  client_socket.close()
if __name__=="__main__":     #如果直接运行本文件，那么__name__为__main__(此时才运行下面的程序)，否则为对应包名
  s = socket.socket(socket.AF_INET,socket.SOCK_STREAM) # 创建socket对象
  s.setsockopt(socket.SOL_SOCKET,socket.SO_REUSEADDR,1)
  #host = socket.gethostname() # 获取本地主机名
  port = 1212 #
  #print(host)
  s.bind(("", port)) # 绑定端口
  s.listen(5)
  while True:
    c,addr=s.accept()  #建立客户端连接
    print(&#39;连接地址&#39;,addr)
    handle_client_process=Process(target=handle_client,args=(c,))  #ALT+ENTER快捷键生成函数
    handle_client_process.start()
    c.close()

Copy after login

##index.html

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>My Web</title>
</head>
<h1 align="center">welcome!</h1>
<p align="center">这是一个神奇的网站！</p>
<body>
</body>
</html>

Copy after login

Run server.py

Enter localhost in the browser: 1212

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