spring-cloud-tencent-examples com.tencent.cloud ${revision} ../pom.xml 4.0.0 polaris-circuitbreaker-example pom polaris-circuitbreaker-example-a polaris-circuitbreaker-example-b org.springframework.boot spring-boot-starter-web org.springframework.boot spring-boot-starter-test test org.springframework.boot spring-boot-starter-actuator org.springframework.cloud spring-cloud-starter-openfeign org.springframework.cloud spring-cloud-starter-netflix-hystrix org.springframework.cloud spring-cloud-starter-netflix-ribbon org.springframework.retry spring-retry