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循环依赖报错 Requested bean is currently in creation: Is there an unresolvable circular reference?
时间 2020-07-11
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缘由 今天作项目遇到了这个坑,字面上看是触发了循环依赖,因为我使用的是构造器注入,因此遇到循环依赖就会致使报错。如图所示,个人依赖链造成了一个环路。 java 为何构造器注入不行 由于要实现循环依赖就得在A调用B,B再调用A的时候,A提早放入singletonFactories三级缓存,不然A和B都无法实例化。而加入singletonFactories三级缓存的前提是执行了构造器,因此构造器注入的
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