Merge pull request #566 from lomodays207/master

解决 java.lang.NumberFormatException: For input string: "{"value":0,"relation":"eq"}" 问题

Author: ZQKC

km-persistence/src/main/java/com/xiaojukeji/know/streaming/km/persistence/es/dao/BaseMetricESDAO.java

@@ -336,7 +336,10 @@ protected int handleESQueryResponseCount(ESQueryResponse response){
         if(null == response || null == response.getHits()
                 || null ==response.getHits().getUnusedMap()){return -1;}
 
-        return Integer.valueOf(response.getHits().getUnusedMap().getOrDefault(TOTAL, 0).toString());
+        // "total" : {"value": 123 , "relation": "XX "}
+        JSONObject jsonObjectTotal = (JSONObject) response.getHits().getUnusedMap().getOrDefault(TOTAL, 0);
+
+        return Integer.valueOf(jsonObjectTotal.get(VALUE).toString());
     }
 
     protected <T extends BaseMetricESPO> T filterMetrics(T t, List<String> metricNames){