nutz新手入门里，对shiro的准备要求下载shiro但是没有说具体下哪些具体的jar所以想下载shiro-all，而shiro官方网站显示 ——“shiro-all：Includes all binary functionality for Shiro (without dependencies), useful in certain build environments (e.g. Ant). However, this is NOT recommended in Maven builds as it does not retain correct dependency metadata, which can lead to Maven working incorrectly. For Maven builds, it is highly recommended to specify individual modules listed below as you require them.”（包括Shiro的所有二进制功能（无依赖关系），在某些构建环境（例如Ant）中有用。但是，这并不推荐在Maven构建中，因为它不保留正确的依赖元数据，这可能导致Maven工作不正确。对于Maven构建，强烈建议您根据需要指定下列各个模块。）