diff --git a/ruoyi-framework/src/main/java/com/ruoyi/framework/aspectj/LogAspect.java b/ruoyi-framework/src/main/java/com/ruoyi/framework/aspectj/LogAspect.java
index b638a791f..875fa4f1f 100644
--- a/ruoyi-framework/src/main/java/com/ruoyi/framework/aspectj/LogAspect.java
+++ b/ruoyi-framework/src/main/java/com/ruoyi/framework/aspectj/LogAspect.java
@@ -89,7 +89,10 @@ public class LogAspect
             String ip = ShiroUtils.getIp();
             operLog.setOperIp(ip);
             // 返回参数
-            operLog.setJsonResult(StringUtils.substring(JSON.marshal(jsonResult), 0, 2000));
+            if (StringUtils.isNotNull(jsonResult))
+            {
+                operLog.setJsonResult(StringUtils.substring(JSON.marshal(jsonResult), 0, 2000));
+            }
 
             operLog.setOperUrl(ServletUtils.getRequest().getRequestURI());
             if (currentUser != null)