如何使用Python创建简单的Web服务器

Python自带HTTP服务器，可快速搭建本地服务。使用python -m http.server 8000命令即可在指定端口启动文件共享服务，浏览器访问http://localhost:8000查看目录内容；如需自定义响应，可通过BaseHTTPRequestHandler编写处理逻辑，运行脚本后实现简单Web服务，适用于测试与开发，但不推荐用于生产环境。

Python comes with a built-in HTTP server, making it easy to set up a simple web server in seconds—perfect for testing, sharing files, or local development.

Using the Built-in HTTP Server (Python 3)

If you just want to serve files from a directory, Python’s http.server module is all you need. No extra installation required.

Follow these steps:

• Open a terminal or command prompt.
• Navigate to the directory you want to serve:
cd /path/to/your/folder
• Run the HTTP server on a specific port (e.g., 8000):
python -m http.server 8000

Now open your browser and go to:

You’ll see a file listing of the directory. Anyone on your network can access it if your firewall allows the connection.

Creating a Custom Web Server with BaseHTTPServer

If you need more control, like handling specific routes or returning custom responses, you can write a small script using BaseHTTPRequestHandler.

Create a file called server.py with this code:

Run it with:

Visit http://localhost:8000 to see your custom message.

Notes and Tips

This approach works great for learning and basic tasks, but don’t use it in production. It's single-threaded and not secure or fast enough for real websites.

• Change localhost to 0.0.0.0 if you want others on your network to access the server.
• Always stop the server with Ctrl C in the terminal.
• Make sure the port you choose isn’t already in use.

Basically, that’s all it takes to run a simple web server with Python. It’s lightweight, quick, and handy when you need something up fast.

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