From ad782ff83776e5b2cfce4483aff6cd5b182000d4 Mon Sep 17 00:00:00 2001
From: Looly <loolly@gmail.com>
Date: Sat, 22 May 2021 14:40:26 +0800
Subject: [PATCH] fix decimalFormat bug

---
 CHANGELOG.md                                              | 3 ++-
 .../src/main/java/cn/hutool/core/util/NumberUtil.java     | 2 +-
 .../src/test/java/cn/hutool/core/util/NumberUtilTest.java | 8 ++++++++
 3 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7dd31f45e..dd21c9f8e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,7 +3,7 @@
 
 -------------------------------------------------------------------------------------------------------------
 
-# 5.6.6 (2021-05-18)
+# 5.6.6 (2021-05-22)
 
 ### 🐣新特性
 * 【cron   】     增加时间轮简单实现
@@ -14,6 +14,7 @@
 
 ### 🐞Bug修复
 * 【core   】     修复XmlUtil中omitXmlDeclaration参数无效问题（issue#1581@Github）
+* 【core   】     修复NumberUtil.decimalFormat参数传错的问题（issue#I3SDS3@Gitee）
 
 -------------------------------------------------------------------------------------------------------------
 # 5.6.5 (2021-05-08)
diff --git a/hutool-core/src/main/java/cn/hutool/core/util/NumberUtil.java b/hutool-core/src/main/java/cn/hutool/core/util/NumberUtil.java
index b04cd9393..ba1504213 100644
--- a/hutool-core/src/main/java/cn/hutool/core/util/NumberUtil.java
+++ b/hutool-core/src/main/java/cn/hutool/core/util/NumberUtil.java
@@ -1082,7 +1082,7 @@ public class NumberUtil {
 		if(null != roundingMode){
 			decimalFormat.setRoundingMode(roundingMode);
 		}
-		return decimalFormat.format(roundingMode);
+		return decimalFormat.format(value);
 	}
 
 	/**
diff --git a/hutool-core/src/test/java/cn/hutool/core/util/NumberUtilTest.java b/hutool-core/src/test/java/cn/hutool/core/util/NumberUtilTest.java
index 6997ce7e3..98460b9b4 100644
--- a/hutool-core/src/test/java/cn/hutool/core/util/NumberUtilTest.java
+++ b/hutool-core/src/test/java/cn/hutool/core/util/NumberUtilTest.java
@@ -161,6 +161,14 @@ public class NumberUtilTest {
 		Assert.assertEquals("299,792,458", format);
 	}
 
+	@Test
+	public void decimalFormatDoubleTest() {
+		Double c = 467.8101;
+
+		String format = NumberUtil.decimalFormat("0.00", c);
+		Assert.assertEquals("467.81", format);
+	}
+
 	@Test
 	public void decimalFormatMoneyTest() {
 		double c = 299792400.543534534;