From 0d87c12d3c57e523da1258e77ccc57acdc0a3887 Mon Sep 17 00:00:00 2001
From: AprilWind <2100166581@qq.com>
Date: Thu, 18 Dec 2025 17:30:32 +0800
Subject: [PATCH] =?UTF-8?q?update=20=E4=BC=98=E5=8C=96=E7=81=B5=E6=B4=BB?=
 =?UTF-8?q?=E8=84=B1=E6=95=8F=E6=96=B9=E6=B3=95?=
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---
 .../common/core/utils/DesensitizedUtils.java   | 18 +++++-------------
 1 file changed, 5 insertions(+), 13 deletions(-)

diff --git a/ruoyi-common/ruoyi-common-core/src/main/java/org/dromara/common/core/utils/DesensitizedUtils.java b/ruoyi-common/ruoyi-common-core/src/main/java/org/dromara/common/core/utils/DesensitizedUtils.java
index dafd8e6c4..698fd6455 100644
--- a/ruoyi-common/ruoyi-common-core/src/main/java/org/dromara/common/core/utils/DesensitizedUtils.java
+++ b/ruoyi-common/ruoyi-common-core/src/main/java/org/dromara/common/core/utils/DesensitizedUtils.java
@@ -34,21 +34,13 @@ public class DesensitizedUtils extends DesensitizedUtil {
             return StrUtil.repeat('*', len);
         }
 
-        // 可用长度 = 总长度 - 前后可见长度
-        int available = len - prefixVisible - suffixVisible;
-
-        // 中间掩码长度不能超过可用长度
-        int actualMaskLength = Math.min(maskLength, available);
-
-        // 剩余字符尽量显示在中间掩码旁
-        int remaining = available - actualMaskLength;
-        String middleChars = remaining > 0 ? value.substring(prefixVisible, prefixVisible + remaining) : "";
-        String middleMask = StrUtil.repeat('*', actualMaskLength);
-
         String prefix = value.substring(0, prefixVisible);
         String suffix = value.substring(len - suffixVisible);
-
-        return prefix + middleChars + middleMask + suffix;
+        // 中间可用于脱敏的最大长度
+        int middleLen = len - prefixVisible - suffixVisible;
+        // 实际掩码长度 至少脱敏 1 位
+        int actualMaskLen = Math.max(1, Math.min(maskLength, middleLen));
+        return prefix + StrUtil.repeat('*', actualMaskLen) + suffix;
     }
 
 }