python静态web服务器实现方法及代码详解

# 时间： 2021/10/21 20:38
import socket
 
 
if __name__ == '__main__':
    # 创建tcp服务端套接字
    tcp_server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    # 设置端口号复用, 程序退出端口立即释放
    tcp_server_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, True)
    # 绑定端口号
    tcp_server_socket.bind(("", 8080))
    # 设置监听
    tcp_server_socket.listen(128)
    while True:
        # 等待接受客户端的连接请求
        new_socket, ip_port = tcp_server_socket.accept()
        # 代码执行到此，说明连接建立成功
        recv_client_data = new_socket.recv(4096)
        # 对二进制数据进行解码
        recv_client_content = recv_client_data.decode)
        print(recv_client_content)
        
 
        # 响应行
        response_line = "HTTP/1.1 200 OK\r\n"
        # 响应头
        response_header = "Server: py1.0\r\n"
 
        # 响应体
        response_body = "Hello,guys!"
 
        # 拼接响应报文
        response_data = (response_line + response_header + "\r\n"+ response_body).encode()
        # 发送数据
        new_socket.send(response_data)
 
        # 关闭服务与客户端的套接字
        new_socket.close()

import socket
import re
import time


def service_client(new_socket):
 """为这个客户端服务"""

 # 1.接收浏览器发送过来的请求，即ｈｔｔｐ请求
 # GET / HTTP/1.1
 # --------
 request = new_socket.recv(1024).decode('utf-8')

 # 判断客户端意外断开链接返回空字符串
 if not request:
  # 关闭套接字并退出
  new_socket.close()
  print("==="*30)
  return

 # 分隔套接字
 request_lines = request.splitlines()
 print()
 print(">"*20)
 print(request_lines)

 file_name = ""
 ret = re.match(r"[^/]+(/[^ ]*)", request_lines[0])
 if ret:
  file_name = ret.group(1)
  if file_name == "/":
   file_name = "/index.html"

 # 2.返回http格式数据　给浏览器
 try:
  f = open("./html" + file_name, "rb")
 except:
  response = "HTTP/1.1 404 NOT FOUND\r\n"
  response += "Content-Type:text/html;charset=utf-8\r\n"
  response += "\r\n"
  response += "<h1>404 not found <br> 没有发现所请求资源</h1>"
  response += str(time.strftime('%Y-%m-%d %H:%M:%S', time.localtime(time.time())))
  new_socket.send(response.encode('utf-8'))
 else:
  html_content = f.read()
  f.close()
  # 2.1准备发送给浏览器的数据---header
  response = "HTTP/1.1 200 OK\r\n"
  response += "\r\n"
  # 2.2准备发送给浏览器的数据 ---body
  # 将response header发送给浏览器
  new_socket.send(response.encode("utf-8"))
  # 将response body发送给浏览器
  new_socket.send(html_content)

 # 关闭套接字
 new_socket.close()


def main():
 """用来完成整体的控制"""
 # 1.创建套接字
 tcp_server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
 # 端口复用
 tcp_server_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
 # 2.绑定
 tcp_server_socket.bind(("", 7890))
 # 3.变为套接字
 tcp_server_socket.listen(128)

 while True:
  # 4.等待客户端的链接
  new_socket, client_addr = tcp_server_socket.accept()

  print(client_addr)

  # 5.为这个客户端服务
  service_client(new_socket)

 # 关闭监听套接字
 tcp_server_socket.close()


if __name__ == '__main__':
 main()