diff --git a/src/main/java/com/example/demo/serviceImpl/ActivityServiceImpl.java b/src/main/java/com/example/demo/serviceImpl/ActivityServiceImpl.java
index 2c191e8..82a0494 100644
--- a/src/main/java/com/example/demo/serviceImpl/ActivityServiceImpl.java
+++ b/src/main/java/com/example/demo/serviceImpl/ActivityServiceImpl.java
@@ -62,9 +62,9 @@ public class ActivityServiceImpl implements ActivityService {
             Date endTime = activity1.getEndTime();
 
             // 使用 Date 类的 before 和 after 方法进行比较
-            if (nowDate.before(startTime)) {
+            if (startTime != null &&nowDate.before(startTime)) {
                 activity1.setStatus(0); // 设置状态为 0
-            } else if (nowDate.after(endTime)) {
+            } else if (endTime != null &&nowDate.after(endTime)) {
                 activity1.setStatus(2); // 设置状态为 2
             } else {
                 activity1.setStatus(1); // 设置状态为 1