Merge branch 'feature' into 'release'

热点库报错修复

See merge request !359

src/main/java/com/zhiwei/brandkbs2/controller/app/AppHotController.java

@@ -416,6 +416,7 @@ public class AppHotController extends BaseController {
         List<JSONObject> lastList = source.stream().filter(json -> json.getLong("startTime") >= (timeRange[0] - space) && json.getLong("startTime") < timeRange[0]).collect(Collectors.toList());
         result.put("currentCount", list.size());
         result.put("lastCount", list.size() - lastList.size());
+        if (!list.isEmpty()) {
             Map<String, List<JSONObject>> platformMap = list.stream().collect(Collectors.groupingBy(json -> HotPlatformEnum.convertPlatform(json.getString("type"))));
             List<JSONObject> platformCount = new ArrayList<>();
             platformMap.forEach((platform, datas) -> {
@@ -425,6 +426,7 @@ public class AppHotController extends BaseController {
                 platformCount.add(json);
             });
             result.put("platformCount", platformCount);
+        }
         result.put("averageCount", source.size() / (Constant.ONE_YEAR / space));
         return result;
     }