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:
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python - m http.server &
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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:
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nohup python - m http.server 8001
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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:
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python - m http.server 8001
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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
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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" )
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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。
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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...
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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
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# 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()
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完整代码
另外一种http方式
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#-.- 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()
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打包exe
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pip install pyinstaller
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pyinstaller -F xxx.py 即可,当前目录下生成
坑
1、No module named ‘http.server'; ‘http' is not a package
当时自己建了一个py叫http,删掉后正常
2、UnicodeDecodeError: ‘utf-8' codec can't decode byte 0xce in position 130: invalid continuat
另存为utf-8即可
以上为个人经验,希望能给大家一个参考,也希望大家多多支持服务器之家。
原文链接:https://blog.csdn.net/SPACESTUDIO/article/details/86760104