From ce1488309022ea9c1e9c7ac64c7f15a77b931ece Mon Sep 17 00:00:00 2001
From: shad0wm00n <yangshuo.seu@gmail.com>
Date: Thu, 25 Dec 2025 00:06:26 +0800
Subject: [PATCH] =?UTF-8?q?fix=20issue=20IDFNF7=EF=BC=8C=E5=AF=B9=20StrMat?=
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 =?UTF-8?q?=E5=A6=82=20${a}${b}=EF=BC=89=EF=BC=8C=E4=BB=A5=E9=81=BF?=
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---
 .../main/java/cn/hutool/core/text/StrMatcher.java   |  5 +++++
 .../java/cn/hutool/core/text/StrMatcherTest.java    | 13 +++++++++++++
 2 files changed, 18 insertions(+)

diff --git a/hutool-core/src/main/java/cn/hutool/core/text/StrMatcher.java b/hutool-core/src/main/java/cn/hutool/core/text/StrMatcher.java
index ccc59f87f9..3761cea4d6 100755
--- a/hutool-core/src/main/java/cn/hutool/core/text/StrMatcher.java
+++ b/hutool-core/src/main/java/cn/hutool/core/text/StrMatcher.java
@@ -46,6 +46,11 @@ public class StrMatcher {
 		int to;
 		for (String part : patterns) {
 			if (StrUtil.isWrap(part, "${", "}")) {
+				// 禁止连续变量，例如${a}${b}
+				if (key != null) {
+					throw new IllegalArgumentException(
+						"Consecutive variables like ${a}${b} are not supported");
+				}
 				// 变量
 				key = StrUtil.sub(part, 2, part.length() - 1);
 			} else {
diff --git a/hutool-core/src/test/java/cn/hutool/core/text/StrMatcherTest.java b/hutool-core/src/test/java/cn/hutool/core/text/StrMatcherTest.java
index 74aaf6f19c..76b436e4e3 100755
--- a/hutool-core/src/test/java/cn/hutool/core/text/StrMatcherTest.java
+++ b/hutool-core/src/test/java/cn/hutool/core/text/StrMatcherTest.java
@@ -37,4 +37,17 @@ public class StrMatcherTest {
 		assertEquals("小明", match.get("name"));
 		assertEquals("20", match.get("year"));
 	}
+
+	@Test
+	public void issueIDFNF7Test() {
+		StrMatcher strMatcher = new StrMatcher("${a}${b}");
+
+		//final Map<String, String> match = strMatcher.match("XY");
+		//Console.log(match); // 此时会输出："{b=XY}"
+
+		assertThrows(
+			IllegalArgumentException.class,
+			() -> strMatcher.match("XY")
+		);
+	}
 }