Google App Engine Tutorial for Java

Google App Engine Tutorial for Java

GAE/J supports JPA (Java Persistence API) 1.0 for persisting data. As all data on the GAE/J are stored in Bigtable some features of JPA are not supported. See JPA on GAE/J for details. Alternatively to JPA you can also use JDO or the low-level API of the App Engine. The datastorage facility is described in Datastore Java API Overview .

The following will create a small "Todo" application using servlets and JSP's. The persistence will be handled by JPA . For an introduction into servlet and JSP programming please see Servlet and JSP development - Tutorial.