Applications can use the application block in a variety of situations, such as authenticating and authorizing users against a database, retrieving role and profile information, and caching user profile information.

• 应用程序可在多种情况下使用应用程序块,例如,根据数据库验证和授权用户、检索角色和配置文件信息,以及缓存用户配置文件信息等。