如何处理webapp2中的上传文件 [英] How to handle uploaded files in webapp2

问题描述

Google appengine的webapp2有一个非常神秘的有关处理上传文件的文档。

 上传的文件可以直接在request.POST中作为cgi.FieldStorage（请参阅cgi模块）实例使用。 
  

我有一个表单，它使得我想要存储在NDB中的JSON文件发出POST请求。 JSONProperty。

任何人都可以提供一个简短的例子，说明如何从请求对象读取文件吗？

解决方案

您可以在表单中使用 enctype =multipart / form-data，然后在您的处理程序中使用文件内容：

  raw_file = self.request.get（'field_name'）
  

然后，将raw_file作为输入传递给模型的属性。

Google appengine's webapp2 has a very cryptic documentation regarding the handling of uploaded files.

Uploaded files are available as cgi.FieldStorage (see the cgi module) instances directly in request.POST.

I have a form which makes a POST request of JSON files which I want to store in an NDB.JsonProperty.

Can anyone offer a short example of how do I read the file from the request object?

解决方案

You can use enctype="multipart/form-data" in your form, and then get file content by using in your handler:

raw_file = self.request.get('field_name')

Then, pass raw_file as input to your model's property.

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