报错：Exception in thread “main“ java.lang.NoClassDefFoundError: org/apache/curator/RetryPolicy

Dubbo的异常

需要加入以下两个依赖：

        <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>