市场法规库清单批量删除修改

laws-base/laws-base-core/src/main/java/com/jero/common/util/ImportExcelUtil.java

@@ -21,7 +21,9 @@ import java.io.PushbackInputStream;
 import java.lang.annotation.Annotation;
 import java.lang.reflect.Field;
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.List;
+import java.util.Objects;
 
 /**
  * 导出返回信息
@@ -179,4 +181,13 @@ public class ImportExcelUtil {
         }
         return flag;
     }
+
+    public static boolean checkExcelFile(MultipartFile file){
+        if(Objects.isNull(file)){
+            return false;
+        }
+        String fileName = file.getOriginalFilename();
+        String extension = fileName.substring(fileName.lastIndexOf(".") + 1);
+        return Arrays.asList("xls","xlsx","XLS","XLSX").contains(extension);
+    }
 }