唠嗑部分 在项目开发中，权限认证是很重要的，尤其是一些管理类的系统，对于权限要求更为严格，那么在Java开发中，常用的权限框架有哪些呢？
Right... calling all Entity Framework experts... I have a table called Bob in my database, my EF model contains an exact mapping/definition of this. I also have a table called Jim who is also mapped
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