介绍

在写业务时，调试出现Spring循环依赖报错，运行不了。

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

   authUserController
┌─────┐
|  authUserService
↑     ↓
|  loginTypeHandlerFactory
↑     ↓
|  loginByEmail
└─────┘


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.

解决

在循环其中一方加上@Lazy，推迟 Bean 实例化就好了