In some cases this is not even realistic if the application server users are different from database users.
在某些情况下，如果应用服务器用户不同于数据库用户，这甚至是不现实的。
A more realistic application would have J2EE roles defined and mapped to groups in the security registry.
更实用的应用程序将定义J2EE角色，并将其映射到在安全注册中心中的组。
Now let's look at how this difficultly plays out in a realistic legacy application scenario.
现在我们来看这个困难在真实的遗留应用程序场景中作用的情况。
应用推荐