排版导入增加第一列非空判断，为空则跳过

src/main/java/com/repair/controller/RepairClassesSettingsController.java

@@ -635,6 +635,9 @@ public class RepairClassesSettingsController implements RepairClassesSettingsCon
                         datas.add(stringCellValue);
                     }
                 } else if (rowNum >= 4) {
+                    if(row.getCell(0)==null){
+                        continue;
+                    }
                     row.getCell(0).setCellType(CellType.STRING);
                     String UserName = row.getCell(0).getStringCellValue();
                     if(ObjectUtils.isEmpty(UserName)){