异常信息

Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'XXXAServiceImpl': Unsatisfied dependency expressed through field 'XXXXExecutor'; nested exception is org.springframework.beans.factory.BeanCurrentlyInCreationException: Error creating bean with name 'XXXXExecutor': Bean with name 'XXXXExecutor' has been injected into other beans [SSSSServiceImpl] 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.

原因

如果你是用Springboot框架然后类定义的是异步处理用，即在类上加@Async注解就是一个处理异步的类这里命名TestAsync，现象这里叫TestAsync依赖其他service这里命名为TestService时，并且TestService也依赖TestAsync时就出现了循环依赖了。普通的spring管理的类不存在初始化特殊类的情况下相互注入是不会出现循环依赖的。这里因为@Async这个注解是一个动态代理的所以就会出现初始化相互依赖的问题了

如何解决

1.使用初始化懒加载方式，在使用@Autowired注解上面加上spring提供的@Lazy

2.系统结构上去调整，不要使代码层面上相互依赖，而是拓展出另外一个Service，如：TestAsyncService