Export/import datastore from/to Google App Engine

I want to export the datastore that I have running in A开发者_运维问答pp Engine into my local "standalone" version of the application. Anyone know how I can do that?

I've been looking around in the App Engine dashboard but can't find it.

Check out the docs on uploading and downloading data.

Gobo-Tools is designed for such tasks

It seems that there is no separate doc for java version of this except that it is said to do with com.google.apphosting.utils.remoteapi.RemoteApiServlet in the doc Nick provided.

Tip: If you have a Java app, you can use the Python appcfg.py tool by installing the Java
version of the remote_api handler, which is included with the Java runtime environment. 
The handler servlet class is com.google.apphosting.utils.remoteapi.RemoteApiServlet.

Here is some relevant code example for java version of this API usage GAE/J datastore backup