Caused by: java.lang.IllegalStateException: Failed to introspect Class [org.springframework.cloud.netflix.hystrix.HystrixCircuitBreakerConfiguration] from ClassLoader [sun.misc.Launcher$AppClassLoader@14dad5dc]
意思是缺少熔断器这个包
解决方案： 在pom中加入这个依赖
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-hystrix</artifactId>
</dependency>
