Python 如何使用瓶子框架上传和保存文件

HTML:

---

我试图做这个代码，但它不工作。我做错了什么？

从瓶子-0.12开始类是通过其upload.save（）功能实现的

以下是瓶子-0.12的示例：

@route('/upload', method='POST')
def do_login():
    category   = request.forms.get('category')
    upload     = request.files.get('upload')
    name, ext = os.path.splitext(upload.filename)
    if ext not in ('png','jpg','jpeg'):
        return 'File extension not allowed.'

    save_path = get_save_path_for_category(category)
    upload.save(save_path) # appends upload.filename automatically
    return 'OK'

注意：os.path.splitext（）函数以“.”格式而不是“.”格式提供扩展名

• 如果您使用的是瓶-0.12之前的版本，请更改：

  import os
  from bottle import route, request, static_file, run
  
  @route('/')
  def root():
      return static_file('test.html', root='.')
  
  @route('/upload', method='POST')
  def do_upload():
      category = request.forms.get('category')
      upload = request.files.get('upload')
      name, ext = os.path.splitext(upload.filename)
      if ext not in ('.png', '.jpg', '.jpeg'):
          return "File extension not allowed."
  
      save_path = "/tmp/{category}".format(category=category)
      if not os.path.exists(save_path):
          os.makedirs(save_path)
  
      file_path = "{path}/{file}".format(path=save_path, file=upload.filename)
      upload.save(file_path)
      return "File successfully saved to '{0}'.".format(save_path)
  
  if __name__ == '__main__':
      run(host='localhost', port=8080)
  

致：

• 运行服务器
• 在浏览器中键入“localhost:8080”

---

get\u save\u path\u for\u category

只是瓶子文档中使用的一个示例，而不是瓶子API的一部分。尝试将

保存路径
设置为
/tmp
或其他设置。如果没有帮助：post errors…和：upload.save（）方法是BATTLE-0.12dev的一部分，尚未发布。如果您使用瓶子0.11（最新的稳定版本），请参阅稳定文档。您会收到此错误“raise AttributeError，name AttributeError:save”。。否错误是我正在使用瓶子0.11，它不支持upload.save（）。我刚刚用python编写了一个普通的写入文件，效果很好。
将open（file_path，'wb'）作为open_file
，否则会得到
TypeError:必须是str，而不是bytes
错误
import os
from bottle import route, request, static_file, run

@route('/')
def root():
    return static_file('test.html', root='.')

@route('/upload', method='POST')
def do_upload():
    category = request.forms.get('category')
    upload = request.files.get('upload')
    name, ext = os.path.splitext(upload.filename)
    if ext not in ('.png', '.jpg', '.jpeg'):
        return "File extension not allowed."

    save_path = "/tmp/{category}".format(category=category)
    if not os.path.exists(save_path):
        os.makedirs(save_path)

    file_path = "{path}/{file}".format(path=save_path, file=upload.filename)
    upload.save(file_path)
    return "File successfully saved to '{0}'.".format(save_path)

if __name__ == '__main__':
    run(host='localhost', port=8080)

...
upload.save(file_path)
...

    ...
    with open(file_path, 'wb') as open_file:
        open_file.write(upload.file.read())
    ...