单进程非堵塞 模型
#coding=utf-8
from socket import *
import time
# 用来存储所有的新链接的socket g_socket_list = list() def main(): server_socket = socket(AF_INET, SOCK_STREAM) server_socket.setsockopt(SOL_SOCKET, SO_REUSEADDR , 1) server_socket.bind(('', 7890)) server_socket.listen(128) # 将套接字设置为非堵塞 # 设置为非堵塞后，如果accept时，恰巧没有客户端connect，那么accept会 # 产生一个异常，所以需要try来进行处理 server_socket.setblocking(False) while True: # 用来测试 time.sleep(0.5) try: newClientInfo = server_socket.accept() except Exception as result: pass else: print("一个新的客户端到来:%s" % str(newClientInfo)) newClientInfo[0].setblocking(False) # 设置为非堵塞 g_socket_list.append(newClientInfo) for client_socket, client_addr in g_socket_list: try: recvData = client_socket.recv(1024) if recvData: print('recv[%s]:%s' % (str(client_addr), recvData)) else: print('[%s]客户端已经关闭' % str(client_addr)) client_socket.close() g_socket_list.remove((client_socket,client_addr)) except Exception as result: pass print(g_socket_list) # for test if __name__ == '__main__': main() web静态服务器-单进程非堵塞
import time
import socket
import sys
import re
class WSGIServer(object): """定义一个WSGI服务器的类""" def __init__(self, port, documents_root): # 1. 创建套接字 self.server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM) # 2. 绑定本地信息 self.server_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1) self.server_socket.bind(("", port)) # 3. 变为监听套接字 self.server_socket.listen(128) self.server_socket.setblocking(False) self.client_socket_list = list() self.documents_root = documents_root def run_forever(self): """运行服务器""" # 等待对方链接 while True: # time.sleep(0.5) # for test try: new_socket, new_addr = self.server_socket.accept() except Exception as ret: print("-----1----", ret) # for test else: new_socket.setblocking(False) self.client_socket_list.append(new_socket) for client_socket in self.client_socket_list: try: request = client_socket.recv(1024).decode('utf-8') except Exception as ret: print("------2----", ret) # for test else: if request: self.deal_with_request(request, client_socket) else: client_socket.close() self.client_socket_list.remove(client_socket) print(self.client_socket_list) def deal_with_request(self, request, client_socket): """为这个浏览器服务器""" if not request: return request_lines = request.splitlines() for i, line in enumerate(request_lines): print(i, line) # 提取请求的文件(index.html) # GET /a/b/c/d/e/index.html HTTP/1.1 ret = re.match(r"([^/]*)([^ ]+)", request_lines[0]) if ret: print("正则提取数据:", ret.group(1)) print("正则提取数据:", ret.group(2)) file_name = ret.group(2) if file_name == "/": file_name = "/index.html" # 读取文件数据 try: f = open(self.documents_root+file_name, "rb") except: response_body = "file not found, 请输入正确的url" response_header = "HTTP/1.1 404 not found\r\n" response_header += "Content-Type: text/html; charset=utf-8\r\n" response_header += "Content-Length: %d\r\n" % (len(response_body)) response_header += "\r\n" # 将header返回给浏览器 client_socket.send(response_header.encode('utf-8')) # 将body返回给浏览器 client_socket.send(response_body.encode("utf-8")) else: content = f.read() f.close() response_body = content response_header = "HTTP/1.1 200 OK\r\n" response_header += "Content-Length: %d\r\n" % (len(response_body)) response_header += "\r\n" # 将header返回给浏览器 client_socket.send( response_header.encode('utf-8') + response_body) # 设置服务器服务静态资源时的路径 DOCUMENTS_ROOT = "./html" def main(): """控制web服务器整体""" # python3 xxxx.py 7890 if len(sys.argv) == 2: port = sys.argv[1] if port.isdigit(): port = int(port) else: print("运行方式如: python3 xxx.py 7890") return print("http服务器使用的port:%s" % port) http_server = WSGIServer(port, DOCUMENTS_ROOT) http_server.run_forever() if __name__ == "__main__": main()