From bdf8f19609636e8bb5533192ff89841c64789606 Mon Sep 17 00:00:00 2001
From: RuoYi <yzz_ivy@163.com>
Date: 星期六, 26 二月 2022 09:47:53 +0800
Subject: [PATCH] 优化Excel格式化不同类型的日期对象

---
 src/main/java/com/ruoyi/common/utils/poi/ExcelUtil.java |   45 +++++++++++++++++++++++++++++++++++++++------
 1 files changed, 39 insertions(+), 6 deletions(-)

diff --git a/src/main/java/com/ruoyi/common/utils/poi/ExcelUtil.java b/src/main/java/com/ruoyi/common/utils/poi/ExcelUtil.java
index f2e4140..8b9ba85 100644
--- a/src/main/java/com/ruoyi/common/utils/poi/ExcelUtil.java
+++ b/src/main/java/com/ruoyi/common/utils/poi/ExcelUtil.java
@@ -9,6 +9,8 @@
 import java.lang.reflect.Method;
 import java.math.BigDecimal;
 import java.text.DecimalFormat;
+import java.time.LocalDate;
+import java.time.LocalDateTime;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Comparator;
@@ -132,7 +134,7 @@
      * 褰撳墠琛屽彿
      */
     private int rownum;
-    
+
     /**
      * 鏍囬
      */
@@ -314,7 +316,7 @@
                             String dateFormat = field.getAnnotation(Excel.class).dateFormat();
                             if (StringUtils.isNotEmpty(dateFormat))
                             {
-                                val = DateUtils.parseDateToStr(dateFormat, (Date) val);
+                                val = parseDateToStr(dateFormat, (Date) val);
                             }
                             else
                             {
@@ -409,7 +411,7 @@
     {
         return exportExcel(list, sheetName, StringUtils.EMPTY);
     }
-    
+
     /**
      * 瀵筶ist鏁版嵁婧愬皢鍏堕噷闈㈢殑鏁版嵁瀵煎叆鍒癳xcel琛ㄥ崟
      * 
@@ -431,7 +433,6 @@
      * @param list 瀵煎嚭鏁版嵁闆嗗悎
      * @param sheetName 宸ヤ綔琛ㄧ殑鍚嶇О
      * @return 缁撴灉
-     * @throws IOException
      */
     public void exportExcel(HttpServletResponse response, List<T> list, String sheetName)
     {
@@ -446,7 +447,6 @@
      * @param sheetName 宸ヤ綔琛ㄧ殑鍚嶇О
      * @param title 鏍囬
      * @return 缁撴灉
-     * @throws IOException
      */
     public void exportExcel(HttpServletResponse response, List<T> list, String sheetName, String title)
     {
@@ -823,7 +823,7 @@
                 String dictType = attr.dictType();
                 if (StringUtils.isNotEmpty(dateFormat) && StringUtils.isNotNull(value))
                 {
-                    cell.setCellValue(DateUtils.parseDateToStr(dateFormat, (Date) value));
+                    cell.setCellValue(parseDateToStr(dateFormat, (Date) value));
                 }
                 else if (StringUtils.isNotEmpty(readConverterExp) && StringUtils.isNotNull(value))
                 {
@@ -1396,4 +1396,37 @@
         }
         return sheetIndexPicMap;
     }
+
+    /**
+     * 鏍煎紡鍖栦笉鍚岀被鍨嬬殑鏃ユ湡瀵硅薄
+     * 
+     * @param dateFormat 鏃ユ湡鏍煎紡
+     * @param val 琚牸寮忓寲鐨勬棩鏈熷璞�
+     * @return 鏍煎紡鍖栧悗鐨勬棩鏈熷瓧绗�
+     */
+    public String parseDateToStr(String dateFormat, Object val)
+    {
+        if (val == null)
+        {
+            return "";
+        }
+        String str;
+        if (val instanceof Date)
+        {
+            str = DateUtils.parseDateToStr(dateFormat, (Date) val);
+        }
+        else if (val instanceof LocalDateTime)
+        {
+            str = DateUtils.parseDateToStr(dateFormat, DateUtils.toDate((LocalDateTime) val));
+        }
+        else if (val instanceof LocalDate)
+        {
+            str = DateUtils.parseDateToStr(dateFormat, DateUtils.toDate((LocalDate) val));
+        }
+        else
+        {
+            str = val.toString();
+        }
+        return str;
+    }
 }

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