單進程非堵塞 模型
#coding=utf-8 from socket import * import time # 用來存儲所有的新鏈接的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) # 將套接字設置為非堵塞 # 設置為非堵塞后，如果accept時，恰巧沒有客戶端connect，那么accept會 # 產生一個異常，所以需要try來進行處理 server_socket.setblocking(False) while True: # 用來測試 time.sleep(0.5) try: newClientInfo = server_socket.accept() except Exception as result: pass else: print("一個新的客戶端到來:%s" % str(newClientInfo)) newClientInfo[0].setblocking(False) # 設置為非堵塞 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]客戶端已經關閉' % 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靜態服務器-單進程非堵塞
import time import socket import sys import re class WSGIServer(object): """定義一個WSGI服務器的類""" def __init__(self, port, documents_root): # 1. 創建套接字 self.server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM) # 2. 綁定本地信息 self.server_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1) self.server_socket.bind(("", port)) # 3. 變為監聽套接字 self.server_socket.listen(128) self.server_socket.setblocking(False) self.client_socket_list = list() self.documents_root = documents_root def run_forever(self): """運行服務器""" # 等待對方鏈接 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): """為這個瀏覽器服務器""" if not request: return request_lines = request.splitlines() for i, line in enumerate(request_lines): print(i, line) # 提取請求的文件(index.html) # GET /a/b/c/d/e/index.html HTTP/1.1 ret = re.match(r"([^/]*)([^ ]+)", request_lines[0]) if ret: print("正則提取數據:", ret.group(1)) print("正則提取數據:", ret.group(2)) file_name = ret.group(2) if file_name == "/": file_name = "/index.html" # 讀取文件數據 try: f = open(self.documents_root+file_name, "rb") except: response_body = "file not found, 請輸入正確的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" # 將header返回給瀏覽器 client_socket.send(response_header.encode('utf-8')) # 將body返回給瀏覽器 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" # 將header返回給瀏覽器 client_socket.send( response_header.encode('utf-8') + response_body) # 設置服務器服務靜態資源時的路徑 DOCUMENTS_ROOT = "./html" def main(): """控制web服務器整體""" # python3 xxxx.py 7890 if len(sys.argv) == 2: port = sys.argv[1] if port.isdigit(): port = int(port) else: print("運行方式如: python3 xxx.py 7890") return print("http服務器使用的port:%s" % port) http_server = WSGIServer(port, DOCUMENTS_ROOT) http_server.run_forever() if __name__ == "__main__": main()