我的网络应用程序的简单登录和注销功能（JSF 2.0）

This morning i rode chapters 39,40 and 41 of the JEE6 tutorial. But i am very, very confused. I don't have a background on web-app security with JEE6, and i am having big difficulties to understand and implement. This morning i rode chapters 39,40 and 41 of th