java - Spring中的ref与依赖属性

Question

我对 Spring 中的 ref 和 depends-on 属性感到困惑。我阅读了 spring 文档但我仍然感到困惑。我想知道两者之间的确切区别以及在哪种情况下应该使用哪一个。

Answer 1

来自官方文档:http://docs.spring.io/spring/docs/3.2.x/javadoc-api/org/springframework/context/annotation/DependsOn.html

Beans on which the current bean depends. Any beans specified are guaranteed to be created by the container before this bean. Used infrequently in cases where a bean does not explicitly depend on another through properties or constructor arguments, but rather depends on the side effects of another bean's initialisation.