1秒钟启动一个下载服务器

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本文档记录了在Linux环境下通过命令行使用Python搭建个人HTTP服务器的过程，包括创建文件、启动服务器及解决端口占用问题。首先在下载目录下创建了一个abc.txt文件，然后尝试用Python的SimpleHTTPServer模块启动服务器，由于8000端口被占用，改用8001端口成功启动。接着尝试用Python3的http.server模块启动，同样遇到端口占用问题，最后在8002端口成功运行。在Android设备上通过输入服务器IP和端口号可以访问到文件。

部署运行你感兴趣的模型镜像

一.在电脑上设置（192.168.3.4）：

humanlsj@humanlsj-PC:~/Downloads/downloadDir$ pwd 查看当前目录的位置
/home/humanlsj/Downloads/downloadDir
humanlsj@humanlsj-PC:~/Downloads/downloadDir$ ls 查看目录下有些什么
humanlsj@humanlsj-PC:~/Downloads/downloadDir$ touch abc.txt 创建一个abc.txt文件
humanlsj@humanlsj-PC:~/Downloads/downloadDir$ vim abc.txt 在abc文件内写入内容
humanlsj@humanlsj-PC:~/Downloads/downloadDir$ python -m SimpleHTTPServer 启动简单http服务器

端口被占用的报错，因为之前用过8000端口，所以再次启动时要用其它端口。例如：8001

Traceback (most recent call last):
File "/usr/lib/python2.7/runpy.py", line 174, in _run_module_as_main
"__main__", fname, loader, pkg_name)
File "/usr/lib/python2.7/runpy.py", line 72, in _run_code
exec code in run_globals
File "/usr/lib/python2.7/SimpleHTTPServer.py", line 235, in <module>
test()
File "/usr/lib/python2.7/SimpleHTTPServer.py", line 231, in test
BaseHTTPServer.test(HandlerClass, ServerClass)
File "/usr/lib/python2.7/BaseHTTPServer.py", line 606, in test
httpd = ServerClass(server_address, HandlerClass)
File "/usr/lib/python2.7/SocketServer.py", line 420, in __init__
self.server_bind()
File "/usr/lib/python2.7/BaseHTTPServer.py", line 108, in server_bind
SocketServer.TCPServer.server_bind(self)
File "/usr/lib/python2.7/SocketServer.py", line 434, in server_bind
self.socket.bind(self.server_address)
File "/usr/lib/python2.7/socket.py", line 228, in meth
return getattr(self._sock,name)(*args)
socket.error: [Errno 98] Address already in use
下面就启动成功的

humanlsj@humanlsj-PC:~/Downloads/downloadDir$ python -m SimpleHTTPServer 8001
Serving HTTP on 0.0.0.0 port 8001 ...
192.168.3.3 - - [27/Oct/2021 22:49:39] "GET / HTTP/1.1" 200 -
192.168.3.3 - - [27/Oct/2021 22:49:40] code 404, message File not found
192.168.3.3 - - [27/Oct/2021 22:49:40] "GET /favicon.ico HTTP/1.1" 404 -

android在浏览器上输入 192.168.3.4:8001

就会出现下面的信息让你下载

humanlsj@humanlsj-PC:~/Downloads/downloadDir$ python -m http.server 8000
/usr/bin/python: No module named http

这里报错是因为python2里面没有python3的库
humanlsj@humanlsj-PC:~/Downloads/downloadDir$ python3 -m http.server 8000

下面的报错是端口被占用
Traceback (most recent call last):
File "/usr/lib/python3.7/runpy.py", line 193, in _run_module_as_main
"__main__", mod_spec)
File "/usr/lib/python3.7/runpy.py", line 85, in _run_code
exec(code, run_globals)
File "/usr/lib/python3.7/http/server.py", line 1262, in <module>
test(HandlerClass=handler_class, port=args.port, bind=args.bind)
File "/usr/lib/python3.7/http/server.py", line 1230, in test
with ServerClass(server_address, HandlerClass) as httpd:
File "/usr/lib/python3.7/socketserver.py", line 452, in __init__
self.server_bind()
File "/usr/lib/python3.7/http/server.py", line 137, in server_bind
socketserver.TCPServer.server_bind(self)
File "/usr/lib/python3.7/socketserver.py", line 466, in server_bind
self.socket.bind(self.server_address)
OSError: [Errno 98] Address already in use
humanlsj@humanlsj-PC:~/Downloads/downloadDir$ python3 -m http.server 8002

这里可以运行了，python3调用python3的库，且端口没有被占用
Serving HTTP on 0.0.0.0 port 8002 (http://0.0.0.0:8002/) ...
192.168.3.3 - - [27/Oct/2021 23:15:18] "GET / HTTP/1.1" 200 -
192.168.3.3 - - [27/Oct/2021 23:15:18] code 404, message File not found
192.168.3.3 - - [27/Oct/2021 23:15:18] "GET /favicon.ico HTTP/1.1" 404 -

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