diff --git a/src/main/java/com/wflow/utils/UserUtil.java b/src/main/java/com/wflow/utils/UserUtil.java
index 15f2120..4f85228 100644
--- a/src/main/java/com/wflow/utils/UserUtil.java
+++ b/src/main/java/com/wflow/utils/UserUtil.java
@@ -20,7 +20,7 @@ public class UserUtil {
      * @return 用户ID
      */
     public static String getLoginUserId(){
-        return SecurityUtils.getUser().getUserId().toString();
+        return Optional.ofNullable(SecurityUtils.getUser()).map(m -> m.getUserId().toString()).orElse(null);
     }
 
     /**