Description: An attempt was made to call a method that does not exist. The attempt was made from the following location: org.springframework.cloud.client.discovery.health.DiscoveryCompositeHealthIndicator.<init>(DiscoveryCompositeHealthIndicator.java:42) The following method did not exist: org.springframework.boot.actuate.health.CompositeHealthIndicator.<init>(Lorg/springframework/boot/actuate/health/HealthAggregator;)V The method's class, org.springframework.boot.actuate.health.CompositeHealthIndicator, is available from the following locations: jar:file:/C:/Users/Administrator/.m2/repository/org/springframework/boot/spring-boot-actuator/2.2.1.RELEASE/spring-boot-actuator-2.2.1.RELEASE.jar!/org/springframework/boot/actuate/health/CompositeHealthIndicator.class It was loaded from the following location: file:/C:/Users/Administrator/.m2/repository/org/springframework/boot/spring-boot-actuator/2.2.1.RELEASE/spring-boot-actuator-2.2.1.RELEASE.jar Action: Correct the classpath of your application so that it contains a single, compatible version of org.springframework.boot.actuate.health.CompositeHealthIndicator
原因：
jar包重复
解决方法：
pom中删掉 spring-boot-starter-actuator