bug:【ID1000395】

用户管理、序列号列表导入pdf文件，有两种错误提示，文件已上传

flossom-modules/flossom-system/src/main/java/com/flossom/system/controller/WxInstrumentSerialController.java

@@ -10,6 +10,8 @@ import com.flossom.common.core.domain.entity.WxUserInstrument;
 import com.flossom.common.core.domain.req.WxInstrumentSerialExportVm;
 import com.flossom.common.core.domain.req.WxInstrumentSerialImportVm;
 import com.flossom.common.core.domain.req.WxUserInstrumentExportVm;
+import com.flossom.common.core.exception.ServiceException;
+import com.flossom.common.core.utils.StringUtils;
 import com.flossom.common.core.utils.poi.ExcelUtil;
 import com.flossom.common.core.web.controller.BaseController;
 import com.flossom.common.core.web.domain.AjaxResult;
@@ -160,6 +162,11 @@ public class WxInstrumentSerialController extends BaseController
     @PostMapping("/importData")
     public AjaxResult importData(MultipartFile file, boolean updateSupport) throws Exception
     {
+        String fileName = file.getOriginalFilename();
+        String suffix = fileName.substring(fileName.lastIndexOf("."));
+        if (!StringUtils.equals(suffix, "xls") || !StringUtils.equals(suffix, "xlsx")) {
+            throw new ServiceException("请使用模板文件导入数据");
+        }
         ExcelUtil<WxInstrumentSerialImportVm> util = new ExcelUtil<WxInstrumentSerialImportVm>(WxInstrumentSerialImportVm.class);
         List<WxInstrumentSerialImportVm> WxInstrumentSerialImportList = util.importExcel(file.getInputStream());
         String message = wxInstrumentSerialService.handleImportData(WxInstrumentSerialImportList);