add

qiaoba-commons/qiaoba-common-base/src/main/java/com/qiaoba/common/base/utils/ObjectUtil.java

@@ -0,0 +1,44 @@
+package com.qiaoba.common.base.utils;
+
+import java.lang.reflect.Field;
+
+/**
+ * 对象工具类
+ *
+ * @author ailanyin
+ * @version 1.0
+ * @since 2023/5/18 14:59
+ */
+public class ObjectUtil {
+
+    /**
+     * 判断对象所有属性是否都为空
+     *
+     * @param obj obj
+     * @return 结果
+     */
+    public static boolean isAllFieldNull(Object obj) {
+        // 得到类对象
+        Class clazz = (Class) obj.getClass();
+        //得到属性集合
+        Field[] fs = clazz.getDeclaredFields();
+        boolean flag = true;
+        //遍历属性
+        for (Field f : fs) {
+            try {
+                // 设置属性是可以访问的(私有的也可以)
+                f.setAccessible(true);
+                // 得到此属性的值
+                Object val = f.get(obj);
+                // 只要有1个属性不为空,那么就不是所有的属性值都为空
+                if(val != null) {
+                    flag = false;
+                    break;
+                }
+            }catch (IllegalAccessException e){
+                e.printStackTrace();
+            }
+        }
+        return flag;
+    }
+}

qiaoba-commons/qiaoba-common-poi/src/main/java/com/qiaoba/common/poi/utils/ExcelUtil.java

@@ -29,7 +29,6 @@ import java.util.NoSuchElementException;
  */
 public class ExcelUtil {
 
-
     /**
      * 默认导出
      *
@@ -67,8 +66,8 @@ public class ExcelUtil {
     private static void downLoadExcel(String fileName, HttpServletResponse response, Workbook workbook) {
         try {
             response.setCharacterEncoding("UTF-8");
-            response.setHeader("content-Type" , "application/vnd.ms-excel");
-            response.setHeader("Content-Disposition" , "attachment;filename=" + URLEncoder.encode(fileName + ".xlsx" , "UTF-8"));
+            response.setHeader("content-Type", "application/vnd.ms-excel");
+            response.setHeader("Content-Disposition", "attachment;filename=" + URLEncoder.encode(fileName + ".xlsx", "UTF-8"));
             workbook.write(response.getOutputStream());
             IOUtils.closeQuietly(workbook);
         } catch (IOException e) {