Flask上传下载文件

通过Flask上传文件参考如下

@server.post('/upload')
def transfer_upload():
    f = request.files['file']
    dir = "/temp/"
    if not os.path.exists(dir):
        os.makedirs(dir)
    f.save(os.path.join(dir, f.filename))
    return jsonify({"code": 0, "msg": "成功！"})

通过Flask下载文件参考如下

@server.get('/download')
def transfer_download():
    with open('/temp/test.png', 'rb') as f:
        stream = f.read()
    response = Response(stream, content_type='application/octet-stream;charset=UTF-8')
    response.headers["Content-Disposition"] = "attachment;filename={}".format(quote(f.name.encode('utf-8')))
    return response

需要注意配置以下参数

server = flask.Flask(__name__)
# 限制单次上传文件大小1G
server.config['MAX_CONTENT_LENGTH'] = 1 * 1024 * 1024 * 1024

相关错误

Failed to load resource: the server responded with a status of 413 (Request Entity Too Large)

解决方案

net::ERR_CONTENT_LENGTH_MISMATCH 200 (OK)

解决方案