Spring Boot有四大神器，分别是auto-configuration、starters、cli、actuator，本文主要讲actuator。actuator是spring boot提供的对应用系统的自省和监控的集成功能，可以对应用系统进行配置查看、相关功能统计等。

使用actuator

jar包依赖

主要暴露的功能

/autoconfig

{ "positiveMatches": { "AuditAutoConfiguration.AuditEventRepositoryConfiguration": [ { "condition": "OnBeanCondition", "message": "@ConditionalOnMissingBean (types: org.springframework.boot.actuate.audit.AuditEventRepository; SearchStrategy: all) found no beans" } ] }, "negativeMatches": { "CacheStatisticsAutoConfiguration": [ { "condition": "OnBeanCondition", "message": "@ConditionalOnBean (types: org.springframework.cache.CacheManager; SearchStrategy: all) found no beans" } ] }}