修改bug。

win-module-infra/win-module-infra-biz/src/main/java/com/win/module/infra/controller/trends/TrendsController.java

@@ -60,10 +60,12 @@ public class TrendsController {
         List<TrendsDO> list = trendsService.getTrendsList(exportReqVO);
         List<TrendsRespVO> trendsRespVOList = TrendsConvert.INSTANCE.convertList(list);
         for(TrendsRespVO trendsRespVO : trendsRespVOList) {
-            AdminUserRespDTO user = adminUserApi.getUser(Long.parseLong(trendsRespVO.getCreator()));
-            if(user != null) {
-                trendsRespVO.setNickname(user.getNickname());
-                trendsRespVO.setAvatar(user.getAvatar());
+            if(trendsRespVO.getCreator() != null) {
+                AdminUserRespDTO user = adminUserApi.getUser(Long.parseLong(trendsRespVO.getCreator()));
+                if (user != null) {
+                    trendsRespVO.setNickname(user.getNickname());
+                    trendsRespVO.setAvatar(user.getAvatar());
+                }
             }
         }
         return success(trendsRespVOList);