原 This is often the result of over-eager type matching - consider using 'getBeanNamesOfType' with the

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场景：我是在一个serviceA 里面调用了serviceB 里面的方法，然后我又在serviceB里面调用了serviceA里面的方法，报错信息如下：

org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'expandAlgorithmController': 
Unsatisfied dependency expressed through field 'expandAlgorithmService'; nested exception is org.springframework.beans.factory.BeanCurrentlyInCreationException: 
Error creating bean with name 'expandAlgorithmServiceImpl': Bean with name 'expandAlgorithmServiceImpl' has been injected into other beans [businessExpandServiceImpl] 
in its raw version as part of a circular reference, but has eventually been wrapped. This means that said other beans do not use the final version of the bean. 
This is often the result of over-eager type matching - consider using 'getBeanNamesOfType' with the 'allowEagerInit' flag turned off, for example.

错误原因：serviceA和serviceB循环依赖了，spring在初始化bean的时候就不知道先初始化哪个bean就会报错。

解决方法：在注入service的时候加一个@Lazy 注解就可以了。

参考资料：https://blog.csdn.net/u011546347/article/details/85230362