在谷歌关闭文件上传功能？ [英] File upload functionality in google closure?

问题描述

我创建的谷歌应用程序引擎的项目。在这里，我想上传一个文件Blob存储区。 我有一个html文件多种形式，其中每一种形式都有一个文件上传按钮

I am creating a project on google app engine. Here I am trying to upload a file to blobstore. I have an html file with multiple forms, where each form has a file upload button

<input type="file">

现在，一旦使用此按钮，用户选择一个文件，该文件必须开始上传到GAE Blob存储区。
我有蟒蛇code，可以做到这一点上传东西，但我是不是能够链接我的后端（蟒蛇）code至我浏览过的文件。 此外，由于有多个形成页面不能得到刷新。的

Now as soon as user selects a file using this button the file must start uploading to GAE blobstore.
I have the python code which can do this uploading stuff but I am not able to link my backend (python) code to the file I've browsed. Also, as there are multiple forms the page must not get refreshed.

我已经找到了解决方案，以刷新页面在谷歌关闭（使用弹出），但它不是我的项目的愿望。我相信这是在封库中没有其他办法。

I have found a solution to page refresh in google closure(using a pop up), but it is not desire in my project. I believe there is no other way in closure library.

我试图做使用AJAX调用，但我很有限的ajax的专业知识，preventing我获得dsired结果吧。

I am trying to do it using ajax call but my very limited knowledge of ajax is preventing me to get the dsired results.

使用jQuery是不是一种选择。

Using JQUERY is not an option.

我希望我的问题是清楚的，请回复，如果没有。

I hope my question is clear, please revert back if not.

任何帮助是非常AP preciated。

Any help is much appreciated.

感谢

推荐答案

谷歌关闭提供了一个IframeIo类，可以将您的文件（无需刷新页面），可在这里的文件，的 HTTP：//closure-library.google$c$c.com/svn/docs/class_goog_net_IframeIo.html

Google Closure provides an IframeIo class that can post your file (without refreshing the page), documentation available here, http://closure-library.googlecode.com/svn/docs/class_goog_net_IframeIo.html

我们实现对IframeIo一个包装（在BSD许可证下可用）present一个文件上传输入和张贴到URL的用户，当他们选择一个文件。来源提供的，的https://$c$c.google.com/p/$p$pstans/source/browse/trunk/client/closure/ui/IframeFileUpload.js

We implemented a wrapper on IframeIo (available under the BSD license) to present the user with a file upload input and the post to a URL when they select a file. Source available at, https://code.google.com/p/prestans/source/browse/trunk/client/closure/ui/IframeFileUpload.js

处理成功/失败codeS是有点棘手，这取决于你从你的Blob存储文件的上传处理程序返回的内容。

Handling success / failure codes are little tricky, depending on what you return from your Blobstore file upload handler.

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