1 单机配置:
<dubbo:registry address="zookeeper://10.101.21.2:2181" />
或者
<dubbo:registry protocol="zookeeper" address="10.101.21.2:2181" />
2 集群配置
<dubbo:registry address="zookeeper://10.101.21.2:2181?backup=10.101.21.3:2181,10.101.21.4:2181" />
或者
<dubbo:registry protocol="zookeeper" address="10.101.21.2:2181,10.101.21.3:2181,10.101.21.4:2181" />