然后打开consul的时候就能够看到这些数据

HTTP GET http://10.9.5.4:8240/actuator/health: 503 Output: {"status":"DOWN","details":{"diskSpace":{"status":"UP","details":{"total":108131250176,"free":39118278656,"threshold":10485760}},"db":{"status":"UP","details":{"database":"MySQL","hello":1}},"refreshScope":{"status":"UP"},"discoveryComposite":{"status":"UP","details":{"discoveryClient":{"status":"UP","details":{"services":["consul","course-web-server","dictionary-server"]}}}},"consul":{"status":"UP","details":{"leader":"127.0.0.1:8300","services":{"consul":[],"course-web-server":["secure=false"],"dictionary-server":["secure=false"]}}},"hystrix":{"status":"UP"},"redis":{"status":"DOWN","details":{"error":" org.springframework.data.redis.RedisConnectionFailureException: Unable to connect to Redis; nested exception is io.lettuce.core.RedisConnectionException : Unable to connect to 127.0.0.1:6379"}}}}

可以看到错误原因是没有添加redis