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原文地址

https://docs.spring.io/spring/docs/5.0.8.RELEASE/spring-framework-reference//core.html#beans

原文内容

In Spring, the objects that form the backbone of your application and that are managed by the Spring IoC container are called beans. A bean is an object that is instantiated, assembled, and otherwise managed by a Spring IoC container. Otherwise, a bean is simply one of many objects in your application. Beans, and the dependencies among them, are reflected in the configuration metadata used by a container.

个人理解

在Spring中，Bean是组成应用的后端服务的对象的集合，是被Spring IoC管理的。一个Bean就是一个被Spring IoC容器实例化、集成和其他管理的对象。换句话说，bean仅仅是应用中无数个对象中的一个。Bean和他们之间的依赖关系反映在容器中的配置的元数据。