目录引言：Spring中的两个关键角色核心区别一览表场景一：业务组件（@Component/@Service）类本身的单例行为关键特性场景二：配置类中的@Bean方法调用危险示例：在@Component中调用@Bean方法根本原因安全解决方案方案
I\'m a desktop application developer, and I plan learning html5, but as it\'s not released, there are (almost) no published books and not too much infomation for beginners on the web... I feel I shoul
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