python多程序的web伺服器的搭建
阿新 • • 發佈：2019-01-23
web_server專案目錄：
- web_server
- html（資料夾）
- index.html
- static_web_server.py
- html（資料夾）
static_web_server.py編寫
import re import socket from multiprocessing import Process # 設定靜態檔案根目錄 HTML_ROOT_DIR = "./html" def handle_client(client_socket): """處理客戶端請求""" # 接收客戶端請求資料(報文) request_data = client_socket.recv(1024) print("request_data:", request_data) # splitlines返回的是一個列表形式 request_lines = request_data.splitlines() print("==" * 20) print(request_lines) print("==" * 20) for line in request_lines: print(line) # 'GET / HTTP/1.1' request_start_line = request_lines[0] print("*" * 20) # 使用者要請求的檔名(request_start_line由byte轉化成str型別) print(request_start_line.decode("utf-8")) file_name = re.match(r"\w+ +(/[^ ]*) ", request_start_line.decode("utf-8")).group(1) if "/" == file_name: file_name = "/index.html" # 開啟檔案，讀取內容 try: file = open(HTML_ROOT_DIR + file_name, "rb") except IOError: response_start_line = "HTTP/1.1 404 Not Found\r\n" response_headers = "Server:My server\r\n" response_body = "The file is not found" else: file_data = file.read() file.close() # 構造相應資料 # 構建：響應行 # 響應的起始行 response_start_line = "HTTP/1.1 200 OK\r\n" # 自己偽造的伺服器的響應頭 response_headers = "Server:My server\r\n" # 響應體 # response_body = "hello world" response_body = file_data.decode("utf-8") response = response_start_line + response_headers + "\r\n" + response_body print("#" * 20) print("response data:", response) print("#" * 20) # 向客戶端返回響應資料 # 字串轉化成位元組 client_socket.send(bytes(response, "utf-8")) # 關閉客戶端連線 client_socket.close() if __name__ == '__main__': server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM) # 可以重複地址 server_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1) # 接收任何IP地址,埠號8000 server_socket.bind(("", 8000)) # 監聽佇列大小設成128(最多連線128個使用者) server_socket.listen(128) # 採用多程序的使用者監聽 while True: # 等待連線 # 接收到的是客戶端的socket，和客戶端的地址 client_socket, client_address = server_socket.accept() # 列印：第一個引數是：IP地址，第二個引數是：埠號（存在於client_address裡，它本身是個元組） # print("[%s,%s]使用者連線上" % (client_address[0], client_address[1])) print("[%s,%s]使用者連線上" % client_address) # Process引數target應該接收的是函式名，args接收的應該是個元組 handle_client_process = Process(target=handle_client, args=(client_socket,)) # 開啟程序 handle_client_process.start() # 客戶端的socket已經沒有用了，關閉 client_socket.close()
index.html的編寫
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>My Web</title>
</head>
<body>
<h1>Hello</h1>
<p>welcome to my web</p>
</body>
</html>
輸出：
[127.0.0.1,3657]使用者連線上 [127.0.0.1,3658]使用者連線上 request_data: b'GET /index.html HTTP/1.1\r\nHost: 127.0.0.1:8000\r\nConnection: keep-alive\r\nCache-Control: max-age=0\r\nUpgrade-Insecure-Requests: 1\r\nUser-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.106 Safari/537.36\r\nAccept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8\r\nAccept-Encoding: gzip, deflate, br\r\nAccept-Language: zh-CN,zh;q=0.9\r\nCookie: Hm_lvt_dde6ba2851f3db0ddc415ce0f895822e=1529392663\r\n\r\n' ======================================== [b'GET /index.html HTTP/1.1', b'Host: 127.0.0.1:8000', b'Connection: keep-alive', b'Cache-Control: max-age=0', b'Upgrade-Insecure-Requests: 1', b'User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.106 Safari/537.36', b'Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8', b'Accept-Encoding: gzip, deflate, br', b'Accept-Language: zh-CN,zh;q=0.9', b'Cookie: Hm_lvt_dde6ba2851f3db0ddc415ce0f895822e=1529392663', b''] ======================================== b'GET /index.html HTTP/1.1' b'Host: 127.0.0.1:8000' b'Connection: keep-alive' b'Cache-Control: max-age=0' b'Upgrade-Insecure-Requests: 1' b'User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.106 Safari/537.36' b'Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8' b'Accept-Encoding: gzip, deflate, br' b'Accept-Language: zh-CN,zh;q=0.9' b'Cookie: Hm_lvt_dde6ba2851f3db0ddc415ce0f895822e=1529392663' b'' ******************** GET /index.html HTTP/1.1 #################### response data: HTTP/1.1 200 OK Server:My server <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>My Web</title> </head> <body> <h1>Hello</h1> <p>welcome to my web</p> </body> </html> ####################