From ccbf367eecb4b38c527a51a723ddd771a967e43d Mon Sep 17 00:00:00 2001
From: ZhouChuGang <langangkj@163.com>
Date: Wed, 5 Jan 2022 20:42:20 +0800
Subject: [PATCH] =?UTF-8?q?feat(lang):=20StrUtil=E5=B7=A5=E5=85=B7?=
 =?UTF-8?q?=E7=B1=BBsplit=E6=96=B9=E6=B3=95=E5=8A=A0=E5=85=A5=E7=A9=BA?=
 =?UTF-8?q?=E5=88=A4=E6=96=AD=EF=BC=8C=E4=B8=8EsplitToArray=E4=B8=80?=
 =?UTF-8?q?=E8=87=B4?=
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Content-Transfer-Encoding: 8bit

StrUtil工具类split方法加入空判断，与splitToArray一致
---
 .../src/main/java/cn/hutool/core/text/StrSplitter.java       | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/hutool-core/src/main/java/cn/hutool/core/text/StrSplitter.java b/hutool-core/src/main/java/cn/hutool/core/text/StrSplitter.java
index eb47e7630..bcf317c01 100644
--- a/hutool-core/src/main/java/cn/hutool/core/text/StrSplitter.java
+++ b/hutool-core/src/main/java/cn/hutool/core/text/StrSplitter.java
@@ -12,6 +12,7 @@ import cn.hutool.core.util.CharUtil;
 import cn.hutool.core.util.StrUtil;
 
 import java.util.ArrayList;
+import java.util.Collections;
 import java.util.List;
 import java.util.function.Function;
 import java.util.regex.Pattern;
@@ -176,6 +177,7 @@ public class StrSplitter {
 
 	/**
 	 * 切分字符串
+	 * 如果为空字符串或者null 则返回空集合
 	 *
 	 * @param <R>         切分后的元素类型
 	 * @param text        被切分的字符串
@@ -189,6 +191,9 @@ public class StrSplitter {
 	 */
 	public static <R> List<R> split(CharSequence text, char separator, int limit, boolean ignoreEmpty,
 									boolean ignoreCase, Function<String, R> mapping) {
+		if (StrUtil.isBlank(text)) {
+			return Collections.emptyList();
+		}
 		final SplitIter splitIter = new SplitIter(text, new CharFinder(separator, ignoreCase), limit, ignoreEmpty);
 		return splitIter.toList(mapping);
 	}