Note that the above environment variables do not supersede any settings provided in security descriptors.
注意上面的环境变量不能替代在安全描述中提供的设置。
Security configuration in EJB2.1 deployment descriptors.
部署描述符中的安全性配置。
Application resources like EJB methods and Web pages can be declared to require authorization for access by means of security constraints in deployment descriptors.
通过部署描述符中的安全约束，可以将应用程序资源(如ejb方法和web页)声明为需要授权才能进行访问。
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