From ca152cfdd8a733fef301df4388f3516b99b5c02f Mon Sep 17 00:00:00 2001
From: tangxin-li <617054137@qq.com>
Date: Mon, 18 Sep 2023 18:32:56 +0800
Subject: [PATCH] =?UTF-8?q?=E8=BD=AC=E9=A9=BC=E5=B3=B0=E6=96=B9=E6=B3=95?=
 =?UTF-8?q?=E5=A4=9A=E6=AC=A1=E8=BD=AC=E6=8D=A2=E4=BF=9D=E6=8C=81=E7=BB=93?=
 =?UTF-8?q?=E6=9E=9C=E4=B8=80=E8=87=B4?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../java/com/mybatisflex/core/util/StringUtil.java     | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/mybatis-flex-core/src/main/java/com/mybatisflex/core/util/StringUtil.java b/mybatis-flex-core/src/main/java/com/mybatisflex/core/util/StringUtil.java
index 2c3566cf..edbd7ab3 100644
--- a/mybatis-flex-core/src/main/java/com/mybatisflex/core/util/StringUtil.java
+++ b/mybatis-flex-core/src/main/java/com/mybatisflex/core/util/StringUtil.java
@@ -88,14 +88,16 @@ public class StringUtil {
         if (isBlank(string)) {
             return "";
         }
-        String temp = string.toLowerCase();
-        int strLen = temp.length();
+        if(Character.isUpperCase(string.charAt(0))){
+            string = string.toLowerCase();
+        }
+        int strLen = string.length();
         StringBuilder sb = new StringBuilder(strLen);
         for (int i = 0; i < strLen; i++) {
-            char c = temp.charAt(i);
+            char c = string.charAt(i);
             if (c == '_') {
                 if (++i < strLen) {
-                    sb.append(Character.toUpperCase(temp.charAt(i)));
+                    sb.append(Character.toUpperCase(string.charAt(i)));
                 }
             } else {
                 sb.append(c);