From 0d0a2ecc5a7ed13188c706d7dc14d0130e8f5fa2 Mon Sep 17 00:00:00 2001
From: RuoYi <yzz_ivy@163.com>
Date: Wed, 19 Aug 2020 10:37:38 +0800
Subject: [PATCH] =?UTF-8?q?Excel=E6=B3=A8=E8=A7=A3=E6=94=AF=E6=8C=81?=
 =?UTF-8?q?=E8=AE=BE=E7=BD=AEBigDecimal=E7=B2=BE=E5=BA=A6&=E8=88=8D?=
 =?UTF-8?q?=E5=85=A5=E8=A7=84=E5=88=99?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../main/java/com/ruoyi/common/annotation/Excel.java  | 11 +++++++++++
 .../java/com/ruoyi/common/utils/poi/ExcelUtil.java    |  6 +++++-
 2 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/ruoyi-common/src/main/java/com/ruoyi/common/annotation/Excel.java b/ruoyi-common/src/main/java/com/ruoyi/common/annotation/Excel.java
index 9b1c0d9f3..f781b1e37 100644
--- a/ruoyi-common/src/main/java/com/ruoyi/common/annotation/Excel.java
+++ b/ruoyi-common/src/main/java/com/ruoyi/common/annotation/Excel.java
@@ -4,6 +4,7 @@ import java.lang.annotation.ElementType;
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
 import java.lang.annotation.Target;
+import java.math.BigDecimal;
 
 /**
  * 自定义导出Excel数据注解
@@ -44,6 +45,16 @@ public @interface Excel
      */
     public String separator() default ",";
 
+    /**
+     * BigDecimal 精度 默认:-1(默认不开启BigDecimal格式化)
+     */
+    public int scale() default -1;
+
+    /**
+     * BigDecimal 舍入规则 默认:BigDecimal.ROUND_HALF_EVEN
+     */
+    public int roundingMode() default BigDecimal.ROUND_HALF_EVEN;
+
     /**
      * 导出类型（0数字 1字符串）
      */
diff --git a/ruoyi-common/src/main/java/com/ruoyi/common/utils/poi/ExcelUtil.java b/ruoyi-common/src/main/java/com/ruoyi/common/utils/poi/ExcelUtil.java
index 4389fd210..b7764e157 100644
--- a/ruoyi-common/src/main/java/com/ruoyi/common/utils/poi/ExcelUtil.java
+++ b/ruoyi-common/src/main/java/com/ruoyi/common/utils/poi/ExcelUtil.java
@@ -552,10 +552,14 @@ public class ExcelUtil<T>
                 {
                     cell.setCellValue(convertByExp(Convert.toStr(value), readConverterExp, separator));
                 }
-                else if (StringUtils.isNotEmpty(dictType))
+                else if (StringUtils.isNotEmpty(dictType) && StringUtils.isNotNull(value))
                 {
                     cell.setCellValue(convertDictByExp(Convert.toStr(value), dictType, separator));
                 }
+                else if (value instanceof BigDecimal && -1 != attr.scale())
+                {
+                    cell.setCellValue((((BigDecimal) value).setScale(attr.scale(), attr.roundingMode())).toString());
+                }
                 else
                 {
                     // 设置列类型