python下载文件的两种方式

from flask import Flask, send_file, abort

app = Flask(__name__)

@app.route('/download/<filename>')
def download_file(filename):
    try:
        # 文件路径
        file_path = f'/path/to/your/files/{filename}'
        
        # 确保文件存在
        if not os.path.isfile(file_path):
            abort(404)  # 文件不存在，返回 404 错误

        # 发送文件
        return send_file(file_path, as_attachment=True, attachment_filename=filename)
    except Exception as e:
        # 捕获异常并返回 500 错误
        return str(e), 500

if __name__ == '__main__':
    app.run(debug=True)

from flask import Blueprint, render_template, send_file

bp = Blueprint('main', __name__)

@bp.route('/')
def index():
    return render_template('index.html')


@bp.route('/download')
def download():
    # 假设压缩包文件路径为 '/path/to/your/file.zip'
    file_path = '/root/xx.rar'
    return send_file(file_path, as_attachment=True, download_name='xx.rar')

<button onclick="downloadFile()">下载压缩包</button> <!-- 新增的下载按钮 -->

server {
    listen 80;
    server_name ip地址;

    location / {
        proxy_pass http://127.0.0.1:5000;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
    }

    location /downloads/ {
        alias /root/;
        autoindex on; # 启用目录索引（可选）
    }

    # Redirect HTTP to HTTPS
    location / {
        return 301 https://$host$request_uri;
    }
}

server {
    listen 443 ssl;
    server_name ip地址;

    ssl_certificate /etc/letsencrypt/live/your_domain/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/your_domain/privkey.pem;

    location / {
        proxy_pass http://127.0.0.1:5000;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
    }

    location /downloads/ {
        alias /root/;
        autoindex on; # 启用目录索引（可选）
    }
}