利用dubbo+zookeeper进行服务注册的时候报以下错误信息：
java.lang.NoClassDefFoundError: org/apache/curator/framework/CuratorFrameworkFactory
解决方案：在pom.xml文件中添加如下依赖即可解决问题
<dependency><groupId>org.apache.curator</groupId><artifactId>curator-framework</artifactId><version>2.8.0</version></dependency><dependency><groupId>org.apache.curator</groupId><artifactId>curator-recipes</artifactId><version>2.8.0</version></dependency>
