以下是整合了所有功能的完整 main.py(在ESP32 007 MicroPython 适用于 Python 和 MicroPython 的小型 Web 框架库 Microdot基础上)，实现了： Wi‑Fi 自动连接（支持静态 IP）； SD 卡挂载； 从 /sd/www/ 读取 HTML 和静态文件 浏览器浏览 /files 自动列出 SD 卡根目录文件并提供下载链接 通过 /download/ 路由下载文件 通过 /upload/ 路由上传文件
from microdot import Microdot, Response , redirect
from wifi import connect_wifi
from scard import SDCard
from machine import SPI, Pin
import os
def is_file ( path) : try : return not ( os. stat( path) [ 0 ] & 0x4000 ) except : return False
def mount_sd ( ) : try : spi = SPI( 2 , baudrate= 1_000_000, sck= Pin( 5 ) , mosi= Pin( 6 ) , miso= Pin( 7 ) ) cs = Pin( 4 , Pin. OUT) sd = SDCard( spi, cs) os. mount( sd, '/sd' ) print ( "✅ SD 卡挂载成功:" , os. listdir( '/sd' ) ) return True except Exception as e: print ( "❌ SD 卡挂载失败:" , e) return False
connect_wifi( )
mount_sd( ) Response. default_content_type = 'text/html'
app = Microdot( )
@app. route ( '/' )
def index ( req) : try : with open ( '/sd/www/index.html' ) as f: return f. read( ) except Exception as e: return f"<h1>无法加载主页</h1><p> { e} </p>" , 500
@app. route ( '/files' )
def list_sd_files ( req) : msg = req. args. get( 'msg' , '' ) try : files = os. listdir( '/sd' ) html = """<!DOCTYPE html><html><head><meta charset='utf-8'><title>SD 文件列表</title></head><body>""" html += "<h1>📁 SD 卡文件列表</h1>" if msg: html += f"<p style='color: green;'> { msg} </p>" += """<form method="POST" action="/upload" enctype="multipart/form-data"><input type="file" name="file"><button type="submit">上传文件</button></form><hr><ul>""" for name in files: full_path = '/sd/' + nameif is_file( full_path) : html += f"""<li><a href="/download/ { name} "> { name} </a><form style="display:inline" method="POST" action="/delete"><input type="hidden" name="filename" value=" { name} "><button type="submit" onclick="return confirm('确定删除文件 { name} 吗？');">删除</button></form></li>""" += "</ul></body></html>" return htmlexcept Exception as e: return f"<h1>无法读取 SD 卡文件</h1><p> { e} </p>" , 500
@app. route ( '/delete' , methods= [ 'POST' ] )
def delete_file ( req) : filename = req. form. get( 'filename' ) if not filename: return "未指定文件名" , 400 filepath = '/sd/' + filenameif not is_file( filepath) : return "文件不存在" , 404 try : os. remove( filepath) return redirect( f"/files?msg=文件 { filename} 删除成功！" ) except Exception as e: return f"删除文件失败: { e} " , 500
@app. route ( '/upload' , methods= [ 'POST' ] )
def upload_file ( req) : try : content_type = req. headers. get( 'Content-Type' , '' ) if 'multipart/form-data' not in content_type: return "请求类型错误" , 400 boundary = content_type. split( "boundary=" ) [ - 1 ] body = req. bodyparts = body. split( b'--' + boundary. encode( ) ) for part in parts: if b'Content-Disposition' in part and b'filename=' in part: header, file_data = part. split( b'\r\n\r\n' , 1 ) header_str = header. decode( ) filename = header_str. split( 'filename="' ) [ - 1 ] . split( '"' ) [ 0 ] file_data = file_data. rsplit( b'\r\n' , 1 ) [ 0 ] with open ( '/sd/' + filename, 'wb' ) as f: f. write( file_data) return redirect( f"/files?msg=文件 { filename} 上传成功！" ) return "未找到上传文件" , 400 except Exception as e: return f"上传失败: { e} " , 500
@app. route ( '/download/<filename>' )
def download_file ( req, filename) : filepath = '/sd/' + filenameif not is_file( filepath) : return '文件不存在' , 404 try : f = open ( filepath, 'rb' ) return Response( f, headers= { 'Content-Type' : 'application/octet-stream' , 'Content-Disposition' : 'attachment; filename="{}"' . format ( filename) } ) except Exception as e: return f"读取文件失败: { e} " , 500 @app. route ( '/<path:path>' )
def serve_static ( req, path) : full_path_www = '/sd/www/' + pathif is_file( full_path_www) : try : return open ( full_path_www) . read( ) except : return '读取失败' , 500 return '404 Not Found' , 404
app. run( host= '0.0.0.0' , port= 80 )
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