spring相互依赖报错问题 BeanCurrentlyInCreationException UnsatisfiedDependencyException_beancurrentlyincreationexception this means that s-优快云博客

本文介绍了在Spring Boot项目中遇到的bean加载错误，特别是由于类A和类B之间的循环依赖导致的。通过在Autowired上添加@Lazy注解，解决了bean创建过程中的问题。

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项目启动一般会报错某个bean加载报错，报错关键信息如下：

org.springframework.beans.factory.UnsatisfiedDependencyException:Error creating bean with name 'resUseTimeConfigController': Unsatisfied dependency expressed through field 'resUseTimeConfigService'; nested exception is org.springframework.beans.factory.BeanCurrentlyInCreationException: Error creating bean with name 'resUseTimeConfigServiceImpl': Bean with name 'resUseTimeConfigServiceImpl' has been injected into other beans [resUseTimeConfigSupport] 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.

主要原因是因为两个bean相互依赖导致的，最简单的解决方案是加上@Lazy注解，在两个类的@Autowired下面再加上该注解即可。

//ClassB类里面依赖了ClassA

@Autowired     

@Lazy//加注解     

private ClassA classA; 


//ClassA类里面依赖了ClassB

@Autowired     

@Lazy//加注解     

private ClassB classB;