fix RTDmpFetch bug

src/main/java/mobvista/dmp/datasource/rtdmp/RTDmpFetch.java

@@ -3,7 +3,7 @@ package mobvista.dmp.datasource.rtdmp;
 import com.alibaba.fastjson.JSON;
 import com.alibaba.fastjson.JSONArray;
 import com.alibaba.fastjson.JSONObject;
-import mobvista.dmp.common.MobvistaConstant;
+import mobvista.dmp.common.Constants;
 import mobvista.dmp.datasource.rtdmp.entity.Tuple;
 import mobvista.dmp.util.*;
 import org.apache.commons.lang3.StringUtils;
@@ -312,7 +312,7 @@ public class RTDmpFetch {
             while ((line = rd.readLine()) != null) {
                 result.append(line);
             }
-            JSONObject jsonObject = MobvistaConstant.String2JSONObject(result.toString());
+            JSONObject jsonObject = Constants.String2JSONObject(result.toString());
             if (jsonObject.getInteger("code") == 200 && jsonObject.containsKey("data")) {
                 jsonArray = jsonObject.getJSONArray("data");
             }
@@ -492,7 +492,7 @@ public class RTDmpFetch {
             while ((line = rd.readLine()) != null) {
                 result.append(line);
             }
-            JSONObject jsonObject = MobvistaConstant.String2JSONObject(result.toString());
+            JSONObject jsonObject = Constants.String2JSONObject(result.toString());
             if (jsonObject.getInteger("code") == 200 && jsonObject.containsKey("data") && jsonObject.getJSONArray("data").size() > 0) {
                 res = jsonObject.getJSONArray("data").getJSONObject(0);
             }