spring的bean安全依赖查找

•依赖查找安全性对比

依赖查找类型                代表实现                                                                 是否安全

单一类型查找               BeanFactory#getBean                                                 否

                                   ObjectFactory#getObject                                             否

                                   ObjectProvider#getIfAvailable                                       是

集合类型查找             ListableBeanFactory#getBeansOfType                         是

                                   ObjectProvider#stream                                                  是

注意：层次性依赖查找的安全性取决于其扩展的单一或集合类型的BeanFactory 接口