user=null判断

src/main/java/com/gaotao/config/MyMetaObjectHandler.java

@@ -21,11 +21,26 @@ public class MyMetaObjectHandler implements MetaObjectHandler {
 
     @Override
     public void insertFill(MetaObject metaObject) {
-        SysUserEntity user = (SysUserEntity) SecurityUtils.getSubject().getPrincipal();
         logger.info("start insert fill ....");
         this.strictInsertFill(metaObject,"createdDate",Date.class, new Date());
-        this.strictInsertFill(metaObject,"site",String.class, user.getSite());
-        this.strictInsertFill(metaObject,"createdBy",String.class, user.getUserDisplay());
+        
+        try {
+            SysUserEntity user = (SysUserEntity) SecurityUtils.getSubject().getPrincipal();
+            if (user != null) {
+                this.strictInsertFill(metaObject,"site",String.class, user.getSite());
+                this.strictInsertFill(metaObject,"createdBy",String.class, user.getUserDisplay());
+            } else {
+                // 当没有用户上下文时，使用默认值
+                this.strictInsertFill(metaObject,"site",String.class, "SYSTEM");
+                this.strictInsertFill(metaObject,"createdBy",String.class, "SYSTEM");
+                logger.warn("No user context found, using default values for site and createdBy");
+            }
+        } catch (Exception e) {
+            // 当获取用户信息失败时，使用默认值
+            this.strictInsertFill(metaObject,"site",String.class, "SYSTEM");
+            this.strictInsertFill(metaObject,"createdBy",String.class, "SYSTEM");
+            logger.warn("Failed to get user context, using default values: " + e.getMessage());
+        }
     }
 
     @Override