diff --git a/src/main/java/com/example/caseData/controller/StatsCaseClinicalController.java b/src/main/java/com/example/caseData/controller/StatsCaseClinicalController.java
index ecfc739..ed57e4f 100644
--- a/src/main/java/com/example/caseData/controller/StatsCaseClinicalController.java
+++ b/src/main/java/com/example/caseData/controller/StatsCaseClinicalController.java
@@ -56,7 +56,15 @@ public class StatsCaseClinicalController extends BaseController {
         }
 
         Long articleReadNum = caseClinicalArticleDao.getTotalReadNum();
+        if (articleReadNum == null){
+            articleReadNum = 0L;
+        }
+
         Long videoReadNum = caseClinicalVideoDao.getTotalReadNum();
+        if (videoReadNum == null){
+            videoReadNum = 0L;
+        }
+
         g.setArticleReadNum(Math.toIntExact(articleReadNum));
         g.setVideoReadNum(Math.toIntExact(videoReadNum));
 
diff --git a/src/main/java/com/example/caseData/controller/StatsCaseExchangeController.java b/src/main/java/com/example/caseData/controller/StatsCaseExchangeController.java
index 2a80c84..f36d193 100644
--- a/src/main/java/com/example/caseData/controller/StatsCaseExchangeController.java
+++ b/src/main/java/com/example/caseData/controller/StatsCaseExchangeController.java
@@ -53,6 +53,10 @@ public class StatsCaseExchangeController extends BaseController {
         }
 
         Long totalCommentNum = caseExchangeDao.getTotalCommentNum();
+        if (totalCommentNum == null){
+            totalCommentNum = 0L;
+        }
+
         g.setExchangeCommentNum(Math.toIntExact(totalCommentNum));
 
         return Response.success(g);