Create CSV file and save to Blobstore

问题

Is it possible to create a CSV file and store, update it on AppEngine Blobstore. Also would it be possible to email this blobstore CSV file as attachment? If yes, are are any sample docs available to accomplish this.

回答1:

1. Yes you can write data to blobstore, including CSV data (which is just text).

2. You can also read data from blobstore, and create mail with attachment.

Update:

You can append to the file until it's finally closed - meaning you can append to it via a series of requests. But once closeFinally() is called, it becomes immutable - you can not append to it or change contents.

来源：https://stackoverflow.com/questions/9671252/create-csv-file-and-save-to-blobstore