Python3 如何开启自带http服务(Python3)

开启Web服务

1.基本方式

Python中自带了简单的服务器程序，能较容易地打开服务。

在python3中将原来的SimpleHTTPServer命令改为了http.server，使用方法如下：

1. cd www目录

2. python -m http.server

开启成功，则会输出“Serving HTTP on 0.0.0.0 port 8000 (http://0.0.0.0:8000/) …”，表示在本机8000端口开启了服务。

如果需要后台运行，可在命令后加"&"符号，Ctrl+C不会关闭服务，如下：

python -m http.server &

如果要保持服务，则在命令前加nohup以忽略所有挂断信号，如下：

nohup python -m http.server 8001

2.指定端口

如果不使用默认端口，可在开启时附带端口参数，如：

python -m http.server 8001

则会在8001端口打开http服务。

使用Web服务

可以使用http://0.0.0.0:8000/查看www目录下的网页文件，若无index.html则会显示目录下的文件。

也可以使用ifconfig命令查看本机IP并使用。

补充：python创建http服务

背景

用java调用dll的时候经常出现 invalid memory access，改用java-Python-dll，

Python通过http服务给java提供功能。

环境

Python3.7

通过 http.server.BaseHTTPRequestHandler 来处理请求，并返回response

打印日志

filename为输入日志名称，默认是同目录下，没有该文件会新创建

filemode a 是追加写的模式，w是覆盖写

import logging
logging.basicConfig(
 level=logging.INFO,
 format='%(asctime)s %(filename)s[line:%(lineno)d] %(levelname)s %(message)s',
 filename="hhh.txt",
 filemode='a'
)
logging.info("xxxx")

调用dll

pchar - ctypes.c_char_p

integer 用了 bytes(0)，byref(ctypes.c_void_p(0)) 都OK，没有更深入去研究，如有错误请指正。

import ctypes
from ctypes import *
dll = ctypes.windll.LoadLibrary('C:\\xxx\\xxx.dll')
print("dll版本号为 ： "+ str(dll.GetVersion()) )
 name = ctypes.c_char_p(b"gc")
roomno = ctypes.c_char_p(bytes(room.encode("utf-8")))
begintime = ctypes.c_char_p(bytes(begin.encode("utf-8")))
endtime = ctypes.c_char_p(bytes(end.encode("utf-8")))
cardno = ctypes.c_void_p(0)
dll.invoke...

http方案一

要注意必须有 response = response_start_line + response_headers + “\r\n” + response_body

拼接应答报文后，才能给浏览器正确返回

# coding:utf-8
import socket
from multiprocessing import Process
def handle_client(client_socket):
 # 获取客户端请求数据
 request_data = client_socket.recv(1024)
 print("request:", request_data)
 # 构造响应数据
 response_start_line = "HTTP/1.1 200 OK\r\n"
 response_headers = "Server: My server\r\n"
 response_body = "helloWorld!"
 response = response_start_line + response_headers + "\r\n" + response_body
 print("response:", response)
 # 向客户端返回响应数据
 client_socket.send(bytes(response, "utf-8"))
 # 关闭客户端连接
 client_socket.close()
if __name__ == "__main__":
 server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
 server_socket.bind(("", 8888))
 server_socket.listen(120)
 print("success")
 while True:
  client_socket, client_address = server_socket.accept()
  print("[%s, %s]用户连接上了" % client_address)
  handle_client_process = Process(target=handle_client, args=(client_socket,))
  handle_client_process.start()
  client_socket.close()

完整代码

另外一种http方式

#-.- coding:utf-8 -.-
from http.server import  HTTPServer
import ctypes
from ctypes import *
# HTTPRequestHandler class
import http.server
import socketserver
import logging
# pyinstaller -F
class testHTTPServer_RequestHandler(http.server.BaseHTTPRequestHandler):
 # GET
  def do_GET(self):
  logging.error('start make ')
  str2 =  str(self.path)
  print("revice： " + str2)
  if "xxx" in str2:
# todo 你的具体业务操作

if "xxx" in str2:
 print("hahaha")
 logging.error('hahaha')
 # response_body = "0"
 self.send_response(200)
 # Send headers
 self.send_header('Content-type','text/html')
 self.end_headers()
 # Send message back to client
 message = "Hello world!"
 # Write content as utf-8 data
 self.wfile.write(bytes(message, "utf8"))
 return
  else:
print("1else")
self.send_response(200)
# Send headers
self.send_header('Content-type', 'text/html')
self.end_headers()
# Send message back to client
message = "Hello world222333!"
# Write content as utf-8 data
self.wfile.write(bytes(message, "utf8"))
return

def run():
  print('starting server...')
  logging.basicConfig(
level=logging.INFO,
format='%(asctime)s %(filename)s[line:%(lineno)d] %(levelname)s %(message)s',
filename="http_make_card.txt",
filemode='a+'
  )
  # Server settings
  server_address = ('127.0.0.1', 8888)
  httpd = HTTPServer(server_address, testHTTPServer_RequestHandler)
  print('running server...')
  httpd.serve_forever()
run()