againI的博客

BeanPostProcessor实际使用场景、动态数据源添加自定义实现、springboot整合hive

@Qualifier@Qualifier 可以让程序员明确指明需要那个bean，我们直接看代码User类public interface User {}User1类@Componentpublic class User1 implements User{}User2类@Componentpublic class User2 implements User{}UserService类@Componentpublic class UserService { @Aut