我想将CAS作为微服务注册到ZK， application.properties

spring.application.name=aep-casserver
spring.cloud.config.discovery.enabled=true
spring.cloud.zookeeper.discovery.enabled=true
spring.cloud.zookeeper.connect-string=127.0.0.1:2181
spring.cloud.zookeeper.discovery.register=true
spring.cloud.zookeeper.discovery.instance-host=${LOCAL_IP}
spring.cloud.zookeeper.discovery.instance-port=${server.port}
spring.cloud.zookeeper.discovery.instance-id=${spring.application.name}-${spring.cloud.zookeeper.discovery.instance-host}:${spring.cloud.zookeeper.discovery.instance-port}

但是当我在tomcat中启动cas时没有效果。