报错信息：
Description:The dependencies of some of the beans in the application context form a cycle:┌──->──┐| helloController (field private org.springframework.web.client.RestTemplate com.example.jcloudsonsumer.controller.HelloController.restTemplate)└──<-──┘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.
解决办法：
spring:main:#解决spring boot2.6因循环引用导致启动时报错allow-circular-references: true
springboot2.6版本因循环引用导致启动时报错的问题Relying upon circular references is discouraged and they are prohibite
