diff --git a/common/src/main/java/com/foreverwin/mesnac/common/aspect/ExportAspect.java b/common/src/main/java/com/foreverwin/mesnac/common/aspect/ExportAspect.java
index 761a0370..90c19b5c 100644
--- a/common/src/main/java/com/foreverwin/mesnac/common/aspect/ExportAspect.java
+++ b/common/src/main/java/com/foreverwin/mesnac/common/aspect/ExportAspect.java
@@ -49,7 +49,7 @@ public class ExportAspect {
         String exportCode = "";
         //-------------------------------------------------------------------------------------------------------------------
         if (paramtes == null || args == null || args.length == 0) return joinPoint.proceed();
-        Boolean isDuoDuo = (args != null && (args.length == 1 && args[0].getClass() != String.class)) ? false : true;
+        Boolean isDuoDuo = (args != null && (args.length == 1 && args[0] != null && args[0].getClass() != String.class)) ? false : true;
         //-------------------------------------------------------------------------------------------------------------------
         request.setCharacterEncoding("UTF-8");
         //-------------------------------------------------------------------------------------------------------------------