Springboot注入时成环报错

A注入B，B注入A，成环报错了

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

   categoryController (field private com.itheima.service.CategoryService com.itheima.controller.CategoryController.service)
┌─────┐
|  categoryServiceImpl (field private com.itheima.service.DishService com.itheima.service.impl.CategoryServiceImpl.dishService)
↑     ↓
|  dishServiceImpl (field private com.itheima.service.CategoryService com.itheima.service.impl.DishServiceImpl.categoryService)
└─────┘


Action:

Relying upon circular references is discouraged and they are prohibited by default. Update your application to remove the dependency cycle between beans. As a last resort, it may be possible to break the cycle automatically by setting spring.main.allow-circular-references to true.


Process finished with exit code 1

解决办法一：spring-boot-start-parent版本过高导致，适当的降一下版本即可解决

解决办法二：在B注入A的时候打上注解@Lazy