diff --git a/mhd-modules/mhd-system/src/main/java/com/mhd/basic/infrastructure/config/CamelCaseMapPlugin.java b/mhd-modules/mhd-system/src/main/java/com/mhd/basic/infrastructure/config/CamelCaseMapPlugin.java
new file mode 100644
index 000000000..ba41cf91d
--- /dev/null
+++ b/mhd-modules/mhd-system/src/main/java/com/mhd/basic/infrastructure/config/CamelCaseMapPlugin.java
@@ -0,0 +1,57 @@
+package com.mhd.basic.infrastructure.config;
+
+import com.mhd.basic.infrastructure.util.CamelCaseUtils;
+import org.apache.ibatis.executor.resultset.ResultSetHandler;
+import org.apache.ibatis.plugin.*;
+import org.springframework.stereotype.Component;
+
+import java.sql.Statement;
+import java.util.List;
+import java.util.Map;
+import java.util.Properties;
+
+/**
+ * MyBatis插件：拦截Map类型结果，转换Key为驼峰
+ */
+@Intercepts({@Signature(
+        type = ResultSetHandler.class,
+        method = "handleResultSets",
+        args = {Statement.class}
+)})
+@Component
+public class CamelCaseMapPlugin implements Interceptor {
+
+    @Override
+    public Object intercept(Invocation invocation) throws Throwable {
+        // 执行原方法获取结果
+        Object result = invocation.proceed();
+        // 处理结果：如果是List且元素是Map，转换Key
+        if (result instanceof List<?>) {
+            List<Map<String, Object>> list = (List<Map<String, Object>>) result;
+            for (int i = 0; i < list.size(); i++) {
+                Object item = list.get(i);
+                if (item instanceof Map<?, ?>) {
+                    @SuppressWarnings("unchecked")
+                    Map<String, Object> map = (Map<String, Object>) item;
+                    // 转换Key为驼峰
+                    list.set(i, CamelCaseUtils.convertMapKeyToCamel(map));
+                }
+            }
+        }
+        return result;
+    }
+
+    @Override
+    public Object plugin(Object target) {
+        // 只拦截ResultSetHandler类型
+        if (target instanceof ResultSetHandler) {
+            return Plugin.wrap(target, this);
+        }
+        return target;
+    }
+
+    @Override
+    public void setProperties(Properties properties) {
+        // 可配置参数，此处无需处理
+    }
+}
\ No newline at end of file
diff --git a/mhd-modules/mhd-system/src/main/java/com/mhd/basic/infrastructure/util/CamelCaseUtils.java b/mhd-modules/mhd-system/src/main/java/com/mhd/basic/infrastructure/util/CamelCaseUtils.java
new file mode 100644
index 000000000..63f799bad
--- /dev/null
+++ b/mhd-modules/mhd-system/src/main/java/com/mhd/basic/infrastructure/util/CamelCaseUtils.java
@@ -0,0 +1,54 @@
+package com.mhd.basic.infrastructure.util;
+
+import org.apache.commons.lang3.StringUtils;
+
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * 字符串工具类扩展：下划线/大写转驼峰
+ */
+public class CamelCaseUtils {
+
+    /**
+     * 大写下划线转驼峰（如：USER_NAME → userName）
+     */
+    public static String toCamelCase(String str) {
+        if (StringUtils.isBlank(str)) {
+            return str;
+        }
+        // 先转小写，再处理下划线
+        str = str.toLowerCase();
+        StringBuilder sb = new StringBuilder();
+        boolean nextUpperCase = false;
+        for (int i = 0; i < str.length(); i++) {
+            char c = str.charAt(i);
+            if (c == '_') {
+                nextUpperCase = true;
+            } else {
+                if (nextUpperCase) {
+                    sb.append(Character.toUpperCase(c));
+                    nextUpperCase = false;
+                } else {
+                    sb.append(c);
+                }
+            }
+        }
+        return sb.toString();
+    }
+
+    /**
+     * 批量转换Map的Key为驼峰
+     */
+    public static <V> Map<String, V> convertMapKeyToCamel(Map<String, V> map) {
+        if (map == null || map.isEmpty()) {
+            return map;
+        }
+        Map<String, V> newMap = new HashMap<>(map.size());
+        for (Map.Entry<String, V> entry : map.entrySet()) {
+            String camelKey = toCamelCase(entry.getKey());
+            newMap.put(camelKey, entry.getValue());
+        }
+        return newMap;
+    }
+}
\ No newline at end of file
diff --git a/mhd-user-center/src/main/java/com/mhd/user/infrastructure/config/CamelCaseMapPlugin.java b/mhd-user-center/src/main/java/com/mhd/user/infrastructure/config/CamelCaseMapPlugin.java
new file mode 100644
index 000000000..fd6b3fc2c
--- /dev/null
+++ b/mhd-user-center/src/main/java/com/mhd/user/infrastructure/config/CamelCaseMapPlugin.java
@@ -0,0 +1,57 @@
+package com.mhd.user.infrastructure.config;
+
+import com.mhd.user.infrastructure.util.CamelCaseUtils;
+import org.apache.ibatis.executor.resultset.ResultSetHandler;
+import org.apache.ibatis.plugin.*;
+import org.springframework.stereotype.Component;
+
+import java.sql.Statement;
+import java.util.List;
+import java.util.Map;
+import java.util.Properties;
+
+/**
+ * MyBatis插件：拦截Map类型结果，转换Key为驼峰
+ */
+@Intercepts({@Signature(
+        type = ResultSetHandler.class,
+        method = "handleResultSets",
+        args = {Statement.class}
+)})
+@Component
+public class CamelCaseMapPlugin implements Interceptor {
+
+    @Override
+    public Object intercept(Invocation invocation) throws Throwable {
+        // 执行原方法获取结果
+        Object result = invocation.proceed();
+        // 处理结果：如果是List且元素是Map，转换Key
+        if (result instanceof List<?>) {
+            List<Map<String, Object>> list = (List<Map<String, Object>>) result;
+            for (int i = 0; i < list.size(); i++) {
+                Object item = list.get(i);
+                if (item instanceof Map<?, ?>) {
+                    @SuppressWarnings("unchecked")
+                    Map<String, Object> map = (Map<String, Object>) item;
+                    // 转换Key为驼峰
+                    list.set(i, CamelCaseUtils.convertMapKeyToCamel(map));
+                }
+            }
+        }
+        return result;
+    }
+
+    @Override
+    public Object plugin(Object target) {
+        // 只拦截ResultSetHandler类型
+        if (target instanceof ResultSetHandler) {
+            return Plugin.wrap(target, this);
+        }
+        return target;
+    }
+
+    @Override
+    public void setProperties(Properties properties) {
+        // 可配置参数，此处无需处理
+    }
+}
\ No newline at end of file
diff --git a/mhd-user-center/src/main/java/com/mhd/user/infrastructure/util/CamelCaseUtils.java b/mhd-user-center/src/main/java/com/mhd/user/infrastructure/util/CamelCaseUtils.java
new file mode 100644
index 000000000..e10b3ad75
--- /dev/null
+++ b/mhd-user-center/src/main/java/com/mhd/user/infrastructure/util/CamelCaseUtils.java
@@ -0,0 +1,54 @@
+package com.mhd.user.infrastructure.util;
+
+import org.apache.commons.lang3.StringUtils;
+
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * 字符串工具类扩展：下划线/大写转驼峰
+ */
+public class CamelCaseUtils {
+
+    /**
+     * 大写下划线转驼峰（如：USER_NAME → userName）
+     */
+    public static String toCamelCase(String str) {
+        if (StringUtils.isBlank(str)) {
+            return str;
+        }
+        // 先转小写，再处理下划线
+        str = str.toLowerCase();
+        StringBuilder sb = new StringBuilder();
+        boolean nextUpperCase = false;
+        for (int i = 0; i < str.length(); i++) {
+            char c = str.charAt(i);
+            if (c == '_') {
+                nextUpperCase = true;
+            } else {
+                if (nextUpperCase) {
+                    sb.append(Character.toUpperCase(c));
+                    nextUpperCase = false;
+                } else {
+                    sb.append(c);
+                }
+            }
+        }
+        return sb.toString();
+    }
+
+    /**
+     * 批量转换Map的Key为驼峰
+     */
+    public static <V> Map<String, V> convertMapKeyToCamel(Map<String, V> map) {
+        if (map == null || map.isEmpty()) {
+            return map;
+        }
+        Map<String, V> newMap = new HashMap<>(map.size());
+        for (Map.Entry<String, V> entry : map.entrySet()) {
+            String camelKey = toCamelCase(entry.getKey());
+            newMap.put(camelKey, entry.getValue());
+        }
+        return newMap;
+    }
+}
\ No newline at end of file
diff --git a/mhd_finance/src/main/java/com/linke/finance/infrastructure/config/CamelCaseMapPlugin.java b/mhd_finance/src/main/java/com/linke/finance/infrastructure/config/CamelCaseMapPlugin.java
new file mode 100644
index 000000000..524382f43
--- /dev/null
+++ b/mhd_finance/src/main/java/com/linke/finance/infrastructure/config/CamelCaseMapPlugin.java
@@ -0,0 +1,57 @@
+package com.linke.finance.infrastructure.config;
+
+import com.linke.finance.infrastructure.util.CamelCaseUtils;
+import org.apache.ibatis.executor.resultset.ResultSetHandler;
+import org.apache.ibatis.plugin.*;
+import org.springframework.stereotype.Component;
+
+import java.sql.Statement;
+import java.util.List;
+import java.util.Map;
+import java.util.Properties;
+
+/**
+ * MyBatis插件：拦截Map类型结果，转换Key为驼峰
+ */
+@Intercepts({@Signature(
+        type = ResultSetHandler.class,
+        method = "handleResultSets",
+        args = {Statement.class}
+)})
+@Component
+public class CamelCaseMapPlugin implements Interceptor {
+
+    @Override
+    public Object intercept(Invocation invocation) throws Throwable {
+        // 执行原方法获取结果
+        Object result = invocation.proceed();
+        // 处理结果：如果是List且元素是Map，转换Key
+        if (result instanceof List<?>) {
+            List<Map<String, Object>> list = (List<Map<String, Object>>) result;
+            for (int i = 0; i < list.size(); i++) {
+                Object item = list.get(i);
+                if (item instanceof Map<?, ?>) {
+                    @SuppressWarnings("unchecked")
+                    Map<String, Object> map = (Map<String, Object>) item;
+                    // 转换Key为驼峰
+                    list.set(i, CamelCaseUtils.convertMapKeyToCamel(map));
+                }
+            }
+        }
+        return result;
+    }
+
+    @Override
+    public Object plugin(Object target) {
+        // 只拦截ResultSetHandler类型
+        if (target instanceof ResultSetHandler) {
+            return Plugin.wrap(target, this);
+        }
+        return target;
+    }
+
+    @Override
+    public void setProperties(Properties properties) {
+        // 可配置参数，此处无需处理
+    }
+}
\ No newline at end of file
diff --git a/mhd_finance/src/main/java/com/linke/finance/infrastructure/util/CamelCaseUtils.java b/mhd_finance/src/main/java/com/linke/finance/infrastructure/util/CamelCaseUtils.java
new file mode 100644
index 000000000..c344f2535
--- /dev/null
+++ b/mhd_finance/src/main/java/com/linke/finance/infrastructure/util/CamelCaseUtils.java
@@ -0,0 +1,54 @@
+package com.linke.finance.infrastructure.util;
+
+import org.apache.commons.lang3.StringUtils;
+
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * 字符串工具类扩展：下划线/大写转驼峰
+ */
+public class CamelCaseUtils {
+
+    /**
+     * 大写下划线转驼峰（如：USER_NAME → userName）
+     */
+    public static String toCamelCase(String str) {
+        if (StringUtils.isBlank(str)) {
+            return str;
+        }
+        // 先转小写，再处理下划线
+        str = str.toLowerCase();
+        StringBuilder sb = new StringBuilder();
+        boolean nextUpperCase = false;
+        for (int i = 0; i < str.length(); i++) {
+            char c = str.charAt(i);
+            if (c == '_') {
+                nextUpperCase = true;
+            } else {
+                if (nextUpperCase) {
+                    sb.append(Character.toUpperCase(c));
+                    nextUpperCase = false;
+                } else {
+                    sb.append(c);
+                }
+            }
+        }
+        return sb.toString();
+    }
+
+    /**
+     * 批量转换Map的Key为驼峰
+     */
+    public static <V> Map<String, V> convertMapKeyToCamel(Map<String, V> map) {
+        if (map == null || map.isEmpty()) {
+            return map;
+        }
+        Map<String, V> newMap = new HashMap<>(map.size());
+        for (Map.Entry<String, V> entry : map.entrySet()) {
+            String camelKey = toCamelCase(entry.getKey());
+            newMap.put(camelKey, entry.getValue());
+        }
+        return newMap;
+    }
+}
\ No newline at end of file
diff --git a/mhd_product/src/main/java/com/linke/product/domain/config/CamelCaseMapPlugin.java b/mhd_product/src/main/java/com/linke/product/domain/config/CamelCaseMapPlugin.java
new file mode 100644
index 000000000..c00d8d9f1
--- /dev/null
+++ b/mhd_product/src/main/java/com/linke/product/domain/config/CamelCaseMapPlugin.java
@@ -0,0 +1,57 @@
+package com.linke.product.domain.config;
+
+import com.linke.product.domain.util.CamelCaseUtils;
+import org.apache.ibatis.executor.resultset.ResultSetHandler;
+import org.apache.ibatis.plugin.*;
+import org.springframework.stereotype.Component;
+
+import java.sql.Statement;
+import java.util.List;
+import java.util.Map;
+import java.util.Properties;
+
+/**
+ * MyBatis插件：拦截Map类型结果，转换Key为驼峰
+ */
+@Intercepts({@Signature(
+        type = ResultSetHandler.class,
+        method = "handleResultSets",
+        args = {Statement.class}
+)})
+@Component
+public class CamelCaseMapPlugin implements Interceptor {
+
+    @Override
+    public Object intercept(Invocation invocation) throws Throwable {
+        // 执行原方法获取结果
+        Object result = invocation.proceed();
+        // 处理结果：如果是List且元素是Map，转换Key
+        if (result instanceof List<?>) {
+            List<Map<String, Object>> list = (List<Map<String, Object>>) result;
+            for (int i = 0; i < list.size(); i++) {
+                Object item = list.get(i);
+                if (item instanceof Map<?, ?>) {
+                    @SuppressWarnings("unchecked")
+                    Map<String, Object> map = (Map<String, Object>) item;
+                    // 转换Key为驼峰
+                    list.set(i, CamelCaseUtils.convertMapKeyToCamel(map));
+                }
+            }
+        }
+        return result;
+    }
+
+    @Override
+    public Object plugin(Object target) {
+        // 只拦截ResultSetHandler类型
+        if (target instanceof ResultSetHandler) {
+            return Plugin.wrap(target, this);
+        }
+        return target;
+    }
+
+    @Override
+    public void setProperties(Properties properties) {
+        // 可配置参数，此处无需处理
+    }
+}
\ No newline at end of file
diff --git a/mhd_product/src/main/java/com/linke/product/domain/util/CamelCaseUtils.java b/mhd_product/src/main/java/com/linke/product/domain/util/CamelCaseUtils.java
new file mode 100644
index 000000000..64768e1fe
--- /dev/null
+++ b/mhd_product/src/main/java/com/linke/product/domain/util/CamelCaseUtils.java
@@ -0,0 +1,54 @@
+package com.linke.product.domain.util;
+
+import org.apache.commons.lang3.StringUtils;
+
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * 字符串工具类扩展：下划线/大写转驼峰
+ */
+public class CamelCaseUtils {
+
+    /**
+     * 大写下划线转驼峰（如：USER_NAME → userName）
+     */
+    public static String toCamelCase(String str) {
+        if (StringUtils.isBlank(str)) {
+            return str;
+        }
+        // 先转小写，再处理下划线
+        str = str.toLowerCase();
+        StringBuilder sb = new StringBuilder();
+        boolean nextUpperCase = false;
+        for (int i = 0; i < str.length(); i++) {
+            char c = str.charAt(i);
+            if (c == '_') {
+                nextUpperCase = true;
+            } else {
+                if (nextUpperCase) {
+                    sb.append(Character.toUpperCase(c));
+                    nextUpperCase = false;
+                } else {
+                    sb.append(c);
+                }
+            }
+        }
+        return sb.toString();
+    }
+
+    /**
+     * 批量转换Map的Key为驼峰
+     */
+    public static <V> Map<String, V> convertMapKeyToCamel(Map<String, V> map) {
+        if (map == null || map.isEmpty()) {
+            return map;
+        }
+        Map<String, V> newMap = new HashMap<>(map.size());
+        for (Map.Entry<String, V> entry : map.entrySet()) {
+            String camelKey = toCamelCase(entry.getKey());
+            newMap.put(camelKey, entry.getValue());
+        }
+        return newMap;
+    }
+}
\ No newline at end of file
diff --git a/mhd_product/src/main/resources/mapper/menu/MenuMapper.xml b/mhd_product/src/main/resources/mapper/menu/MenuMapper.xml
index a41bf6c67..2e49952ab 100644
--- a/mhd_product/src/main/resources/mapper/menu/MenuMapper.xml
+++ b/mhd_product/src/main/resources/mapper/menu/MenuMapper.xml
@@ -273,8 +273,8 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
 
     <select id="selectMenuComponent" resultType="java.util.HashMap">
         SELECT
-            menu_component AS menuComponent,
-            menu_redirect_path AS menuRedirectPath
+            menu_component,
+            menu_redirect_path
         FROM
                 sys_menu
         where
diff --git a/mhd_thrid_party/src/main/java/com/linke/thirdParty/infrastructure/config/CamelCaseMapPlugin.java b/mhd_thrid_party/src/main/java/com/linke/thirdParty/infrastructure/config/CamelCaseMapPlugin.java
new file mode 100644
index 000000000..a33af3b5e
--- /dev/null
+++ b/mhd_thrid_party/src/main/java/com/linke/thirdParty/infrastructure/config/CamelCaseMapPlugin.java
@@ -0,0 +1,57 @@
+package com.linke.thirdParty.infrastructure.config;
+
+import com.linke.thirdParty.infrastructure.utils.CamelCaseUtils;
+import org.apache.ibatis.executor.resultset.ResultSetHandler;
+import org.apache.ibatis.plugin.*;
+import org.springframework.stereotype.Component;
+
+import java.sql.Statement;
+import java.util.List;
+import java.util.Map;
+import java.util.Properties;
+
+/**
+ * MyBatis插件：拦截Map类型结果，转换Key为驼峰
+ */
+@Intercepts({@Signature(
+        type = ResultSetHandler.class,
+        method = "handleResultSets",
+        args = {Statement.class}
+)})
+@Component
+public class CamelCaseMapPlugin implements Interceptor {
+
+    @Override
+    public Object intercept(Invocation invocation) throws Throwable {
+        // 执行原方法获取结果
+        Object result = invocation.proceed();
+        // 处理结果：如果是List且元素是Map，转换Key
+        if (result instanceof List<?>) {
+            List<Map<String, Object>> list = (List<Map<String, Object>>) result;
+            for (int i = 0; i < list.size(); i++) {
+                Object item = list.get(i);
+                if (item instanceof Map<?, ?>) {
+                    @SuppressWarnings("unchecked")
+                    Map<String, Object> map = (Map<String, Object>) item;
+                    // 转换Key为驼峰
+                    list.set(i, CamelCaseUtils.convertMapKeyToCamel(map));
+                }
+            }
+        }
+        return result;
+    }
+
+    @Override
+    public Object plugin(Object target) {
+        // 只拦截ResultSetHandler类型
+        if (target instanceof ResultSetHandler) {
+            return Plugin.wrap(target, this);
+        }
+        return target;
+    }
+
+    @Override
+    public void setProperties(Properties properties) {
+        // 可配置参数，此处无需处理
+    }
+}
\ No newline at end of file
diff --git a/mhd_thrid_party/src/main/java/com/linke/thirdParty/infrastructure/utils/CamelCaseUtils.java b/mhd_thrid_party/src/main/java/com/linke/thirdParty/infrastructure/utils/CamelCaseUtils.java
new file mode 100644
index 000000000..b3205fbbb
--- /dev/null
+++ b/mhd_thrid_party/src/main/java/com/linke/thirdParty/infrastructure/utils/CamelCaseUtils.java
@@ -0,0 +1,54 @@
+package com.linke.thirdParty.infrastructure.utils;
+
+import org.apache.commons.lang3.StringUtils;
+
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * 字符串工具类扩展：下划线/大写转驼峰
+ */
+public class CamelCaseUtils {
+
+    /**
+     * 大写下划线转驼峰（如：USER_NAME → userName）
+     */
+    public static String toCamelCase(String str) {
+        if (StringUtils.isBlank(str)) {
+            return str;
+        }
+        // 先转小写，再处理下划线
+        str = str.toLowerCase();
+        StringBuilder sb = new StringBuilder();
+        boolean nextUpperCase = false;
+        for (int i = 0; i < str.length(); i++) {
+            char c = str.charAt(i);
+            if (c == '_') {
+                nextUpperCase = true;
+            } else {
+                if (nextUpperCase) {
+                    sb.append(Character.toUpperCase(c));
+                    nextUpperCase = false;
+                } else {
+                    sb.append(c);
+                }
+            }
+        }
+        return sb.toString();
+    }
+
+    /**
+     * 批量转换Map的Key为驼峰
+     */
+    public static <V> Map<String, V> convertMapKeyToCamel(Map<String, V> map) {
+        if (map == null || map.isEmpty()) {
+            return map;
+        }
+        Map<String, V> newMap = new HashMap<>(map.size());
+        for (Map.Entry<String, V> entry : map.entrySet()) {
+            String camelKey = toCamelCase(entry.getKey());
+            newMap.put(camelKey, entry.getValue());
+        }
+        return newMap;
+    }
+}
\ No newline at end of file
diff --git a/mhd_transport/src/main/java/com/linke/transport/infrastructure/config/CamelCaseMapPlugin.java b/mhd_transport/src/main/java/com/linke/transport/infrastructure/config/CamelCaseMapPlugin.java
new file mode 100644
index 000000000..ef791c4bc
--- /dev/null
+++ b/mhd_transport/src/main/java/com/linke/transport/infrastructure/config/CamelCaseMapPlugin.java
@@ -0,0 +1,57 @@
+package com.linke.transport.infrastructure.config;
+
+import com.linke.transport.infrastructure.util.CamelCaseUtils;
+import org.apache.ibatis.executor.resultset.ResultSetHandler;
+import org.apache.ibatis.plugin.*;
+import org.springframework.stereotype.Component;
+
+import java.sql.Statement;
+import java.util.List;
+import java.util.Map;
+import java.util.Properties;
+
+/**
+ * MyBatis插件：拦截Map类型结果，转换Key为驼峰
+ */
+@Intercepts({@Signature(
+        type = ResultSetHandler.class,
+        method = "handleResultSets",
+        args = {Statement.class}
+)})
+@Component
+public class CamelCaseMapPlugin implements Interceptor {
+
+    @Override
+    public Object intercept(Invocation invocation) throws Throwable {
+        // 执行原方法获取结果
+        Object result = invocation.proceed();
+        // 处理结果：如果是List且元素是Map，转换Key
+        if (result instanceof List<?>) {
+            List<Map<String, Object>> list = (List<Map<String, Object>>) result;
+            for (int i = 0; i < list.size(); i++) {
+                Object item = list.get(i);
+                if (item instanceof Map<?, ?>) {
+                    @SuppressWarnings("unchecked")
+                    Map<String, Object> map = (Map<String, Object>) item;
+                    // 转换Key为驼峰
+                    list.set(i, CamelCaseUtils.convertMapKeyToCamel(map));
+                }
+            }
+        }
+        return result;
+    }
+
+    @Override
+    public Object plugin(Object target) {
+        // 只拦截ResultSetHandler类型
+        if (target instanceof ResultSetHandler) {
+            return Plugin.wrap(target, this);
+        }
+        return target;
+    }
+
+    @Override
+    public void setProperties(Properties properties) {
+        // 可配置参数，此处无需处理
+    }
+}
\ No newline at end of file
diff --git a/mhd_transport/src/main/java/com/linke/transport/infrastructure/util/CamelCaseUtils.java b/mhd_transport/src/main/java/com/linke/transport/infrastructure/util/CamelCaseUtils.java
new file mode 100644
index 000000000..90cc892e2
--- /dev/null
+++ b/mhd_transport/src/main/java/com/linke/transport/infrastructure/util/CamelCaseUtils.java
@@ -0,0 +1,54 @@
+package com.linke.transport.infrastructure.util;
+
+import org.apache.commons.lang3.StringUtils;
+
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * 字符串工具类扩展：下划线/大写转驼峰
+ */
+public class CamelCaseUtils {
+
+    /**
+     * 大写下划线转驼峰（如：USER_NAME → userName）
+     */
+    public static String toCamelCase(String str) {
+        if (StringUtils.isBlank(str)) {
+            return str;
+        }
+        // 先转小写，再处理下划线
+        str = str.toLowerCase();
+        StringBuilder sb = new StringBuilder();
+        boolean nextUpperCase = false;
+        for (int i = 0; i < str.length(); i++) {
+            char c = str.charAt(i);
+            if (c == '_') {
+                nextUpperCase = true;
+            } else {
+                if (nextUpperCase) {
+                    sb.append(Character.toUpperCase(c));
+                    nextUpperCase = false;
+                } else {
+                    sb.append(c);
+                }
+            }
+        }
+        return sb.toString();
+    }
+
+    /**
+     * 批量转换Map的Key为驼峰
+     */
+    public static <V> Map<String, V> convertMapKeyToCamel(Map<String, V> map) {
+        if (map == null || map.isEmpty()) {
+            return map;
+        }
+        Map<String, V> newMap = new HashMap<>(map.size());
+        for (Map.Entry<String, V> entry : map.entrySet()) {
+            String camelKey = toCamelCase(entry.getKey());
+            newMap.put(camelKey, entry.getValue());
+        }
+        return newMap;
+    }
+}
\ No newline at end of file