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APPLICATION FAILED TO START
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Description:

The dependencies of some of the beans in the application context form a cycle:

|  MyController (field private com.zhxy.service.AService com.zhxy.controller.MyController.BService)
↑     ↓
|  BService
└─────┘
 

啟動spring boot報以上錯誤

錯誤產生原因：BService裡面注入AService使用，AService裡面又注入BService使用

解決方法：在BService的實現類對 AService   加上Spirng的註解 @Lazy

@Autowired

@Lazy

private AService aService ;