fix sharding-ui-distribution error temporarily.
fix sharding-ui-distribution error temporarily.

leeyazhou/sharding-jdbc,leeyazhou/sharding-jdbc,apache/incubator-shardingsphere,apache/incubator-shardingsphere,leeyazhou/sharding-jdbc,apache/incubator-shardingsphere,apache/incubator-shardingsphere,leeyazhou/sharding-jdbc