Merge branch 'master' of http://git.dayaedu.com/yonge/mec

mec-web/src/main/java/com/ym/mec/web/controller/ExportController.java

@@ -251,6 +251,9 @@ public class ExportController extends BaseController {
             }
         }
         List<StudentManageListDto> rows = studentManageService.queryHasCourseStudent(queryInfo);
+        if(rows.size() > 50000){
+            throw new BizException("数据集太大，不能导出.最大数据集不能超过50000");
+        }
 //        List<StudentManageListDto> rows = studentManageService.findStudentsByOrganId(queryInfo).getRows();
         try {
             HSSFWorkbook workbook = POIUtil.exportExcel(new String[]{"分部", "学员编号", "学员姓名", "性别", "家长姓名",