dubbo2.7.7启动Caused by: java.lang.IllegalStateException: zookeeper not connected

启动dubbo可能出现如下错误：

Caused by: java.lang.IllegalStateException: zookeeper not connected
	at org.apache.dubbo.remoting.zookeeper.curator.CuratorZookeeperClient.<init>(CuratorZookeeperClient.java:80) ~[dubbo-2.7.7.jar:2.7.7]
	... 31 more

首先确定下zookeeper服务是否正常，如果zk正常，那基本就是连接zk出现异常，进入错误类断点调试下，如果连接超时可以将timeout属性设置大一些，默认5*1000。

属性设置：

dubbo:
  application:
    name: privider
  registry:
    address: zookeeper://127.0.0.1:2181
    timeout: 10000