diff --git a/physical-base-core/src/main/java/org/jeecg/common/system/base/controller/JeecgController.java b/physical-base-core/src/main/java/org/jeecg/common/system/base/controller/JeecgController.java
index d359101..b8c43cd 100644
--- a/physical-base-core/src/main/java/org/jeecg/common/system/base/controller/JeecgController.java
+++ b/physical-base-core/src/main/java/org/jeecg/common/system/base/controller/JeecgController.java
@@ -41,9 +41,9 @@ public class JeecgController<T, S extends IService<T>> {
      * issues/2933 JeecgController注入service时改用protected修饰，能避免重复引用service
      */
     @Autowired
-    protected S service;
+    protected S               service;
     @Resource
-    private JeecgBaseConfig jeecgBaseConfig;
+    private   JeecgBaseConfig jeecgBaseConfig;
 
     /**
      * 导出excel
@@ -70,7 +70,8 @@ public class JeecgController<T, S extends IService<T>> {
         mv.addObject(NormalExcelConstants.FILE_NAME, title);
         mv.addObject(NormalExcelConstants.CLASS, clazz);
         //update-begin--Author:liusq  Date:20210126 for：图片导出报错，ImageBasePath未设置--------------------
-        ExportParams exportParams = new ExportParams(title + "报表", "导出人:" + sysUser.getRealname(), title);
+        ExportParams exportParams = new ExportParams(title + "报表", "导出人:" + Optional.ofNullable(sysUser).map(v -> v.getRealname())
+                .orElse(""), title);
         exportParams.setImageBasePath(jeecgBaseConfig.getPath().getUpload());
         //update-end--Author:liusq  Date:20210126 for：图片导出报错，ImageBasePath未设置----------------------
         mv.addObject(NormalExcelConstants.PARAMS, exportParams);
@@ -89,7 +90,8 @@ public class JeecgController<T, S extends IService<T>> {
      * @param pageNum      每个sheet的数据条数
      * @param request
      */
-    protected ModelAndView exportXlsSheet(HttpServletRequest request, T object, Class<T> clazz, String title, String exportFields, Integer pageNum) {
+    protected ModelAndView exportXlsSheet(HttpServletRequest request, T object, Class<T> clazz, String title, String exportFields,
+                                          Integer pageNum) {
         // Step.1 组装查询条件
         QueryWrapper<T> queryWrapper = QueryGenerator.initQueryWrapper(object, request.getParameterMap());
         LoginUser sysUser = (LoginUser) SecurityUtils.getSubject().getPrincipal();
@@ -111,7 +113,8 @@ public class JeecgController<T, S extends IService<T>> {
             IPage<T> pageList = service.page(page, queryWrapper);
             List<T> exportList = pageList.getRecords();
             Map<String, Object> map = new HashMap<>(5);
-            ExportParams exportParams = new ExportParams(title + "报表", "导出人:" + sysUser.getRealname(), title + i, jeecgBaseConfig.getPath().getUpload());
+            ExportParams exportParams = new ExportParams(title + "报表", "导出人:" + sysUser.getRealname(), title + i,
+                    jeecgBaseConfig.getPath().getUpload());
             exportParams.setType(ExcelType.XSSF);
             //map.put("title",exportParams);
             //表格Title
@@ -130,7 +133,6 @@ public class JeecgController<T, S extends IService<T>> {
         return mv;
     }
 
-
     /**
      * 根据权限导出excel，传入导出字段参数
      *