App Engine applications can be implemented using the Java programming language, and other languages that use the Java Virtual Machine. The App Engine Java runtime environment includes the Java 6 JVM and interfaces to the App Engine services that conform to industry standards, such as servlets and JDO/JPA. You can also use raw APIs to the services for implementing other interfaces.
This developer guide introduces the standard interfaces and explains how to use them with App Engine, as well as the raw APIs and development tools included in the App Engine Java SDK.
以前，GAE只是支持python的应用，现在开放java的测试了，大家不妨去试试。目前拥有500M的免费使用空间。(需要手机短信确认验证码。输入+8613*********就ok了)
GAE The Java Runtime Environment
注册GAE
下载GAE SDK
