Google App Engine 可让您在 Google 的基础架构上运行您的网络应用程序。App Engine 应用程序易于构建和维护，并可根据您的访问量和数据存储需要的增长轻松扩展。使用 Google App Engine，将不再需要维护服务器：您只需上传您的应用程序，它便可立即为您的用户提供服务.
下载:Google App Engine Java SDK 1.2.6Version 1.2.6 - October 13, 2009
- Add support for handling incoming email
- New AllocateIDs method for pre-allocating IDs as part of a large batch write
- DatastoreQueues for TaskQueue API
- Default queue URL changed to match Python
- New Appcfg.sh actions: cron_info, update_queues
- Development Appserver Admin Console changes: Task Queue tweaks and new XMPP Admin page
- Class whitelisting support added to the development appserver which support should bring the local environment closer to hosted environment
- ssl-enabled set to true by default