diff --git a/ruoyi-admin/src/main/java/com/ruoyi/web/controller/system/SysLoginController.java b/ruoyi-admin/src/main/java/com/ruoyi/web/controller/system/SysLoginController.java
index 463eef3..abc8d02 100644
--- a/ruoyi-admin/src/main/java/com/ruoyi/web/controller/system/SysLoginController.java
+++ b/ruoyi-admin/src/main/java/com/ruoyi/web/controller/system/SysLoginController.java
@@ -97,6 +97,11 @@ public class SysLoginController
         return ajax;
     }
 
+    /**
+     * 微信+手机验证码登录
+     * @param loginBody
+     * @return
+     */
     @PostMapping("/app/appLoginPhone")
     public AjaxResult appLoginPhone(@RequestBody LoginBody loginBody)
     {
@@ -105,6 +110,17 @@ public class SysLoginController
         return ajax;
     }
 
+    /**
+     * 再次发送验证码
+     * @return
+     */
+    @PostMapping("/app/sendSmsAgain")
+    private AjaxResult sendSmsAgain(@RequestBody LoginBody loginBody){
+        AjaxResult ajax = AjaxResult.success();
+        ajax=loginService.sendSmsAgain(loginBody);
+        return ajax;
+    }
+
     /**
      * 一体机身份证登录
      * @param loginBody
diff --git a/ruoyi-common/src/main/java/com/ruoyi/common/utils/RandomCodeUtils.java b/ruoyi-common/src/main/java/com/ruoyi/common/utils/RandomCodeUtils.java
new file mode 100644
index 0000000..c365530
--- /dev/null
+++ b/ruoyi-common/src/main/java/com/ruoyi/common/utils/RandomCodeUtils.java
@@ -0,0 +1,23 @@
+package com.ruoyi.common.utils;
+
+import cn.hutool.core.util.RandomUtil;
+
+/**
+ * 验证码通用工具类（全项目复用）
+ */
+public class RandomCodeUtils {
+
+    /**
+     * 生成 6 位数字验证码
+     */
+    public static String generateSixCode() {
+        return RandomUtil.randomNumbers(6);
+    }
+
+    /**
+     * 生成指定位数数字验证码
+     */
+    public static String generateNumberCode(int length) {
+        return RandomUtil.randomNumbers(length);
+    }
+}
\ No newline at end of file
diff --git a/ruoyi-framework/src/main/java/com/ruoyi/framework/web/service/SysLoginService.java b/ruoyi-framework/src/main/java/com/ruoyi/framework/web/service/SysLoginService.java
index 75773f8..b34d981 100644
--- a/ruoyi-framework/src/main/java/com/ruoyi/framework/web/service/SysLoginService.java
+++ b/ruoyi-framework/src/main/java/com/ruoyi/framework/web/service/SysLoginService.java
@@ -2,7 +2,6 @@ package com.ruoyi.framework.web.service;
 
 import javax.annotation.Resource;
 
-import cn.hutool.core.util.RandomUtil;
 import com.alibaba.fastjson.JSONObject;
 import com.alibaba.fastjson2.JSON;
 import com.ruoyi.cms.domain.vo.WechatAuthVO;
@@ -374,6 +373,25 @@ public class SysLoginService
         }
     }
 
+    /**
+     * 再次发送验证码
+     * @param dto
+     * @return
+     */
+    public AjaxResult sendSmsAgain(LoginBody dto){
+        if (StringUtils.isEmpty(dto.getPhone())) {
+            return AjaxResult.error("手机号不能为空");
+        }
+        String phone = dto.getPhone();
+
+        // 60秒内不能重发（Redis 防刷）
+        if (redisCache.hasKey(RedisUtils.SMS_SEND_LOCK + phone)) {
+            return AjaxResult.error("发送频繁，请60秒后重试");
+        }
+
+        return doSendSms(phone);
+    }
+
     /**
      * 发送短信并缓存
      * @param phone
@@ -383,27 +401,37 @@ public class SysLoginService
         if (Boolean.TRUE.equals(redisCache.hasKey(RedisUtils.SMS_SEND_LOCK + phone))) {
             return AjaxResult.error("验证码发送频繁，请60秒后重试");
         }
-        // 生成6位验证码
-        String code = RandomUtil.randomNumbers(6);
+        return doSendSms(phone);
+    }
+
+    /**
+     * 发送短信
+     */
+    private AjaxResult doSendSms(String phone) {
+        // 生成验证码
+        String code = RandomCodeUtils.generateSixCode();
+
         // 缓存验证码
         redisCache.setCacheObject(RedisUtils.SMS_CODE_KEY + phone, code, RedisUtils.SMS_EXPIRE, TimeUnit.MINUTES);
-        // 缓存发送锁（防重）
         redisCache.setCacheObject(RedisUtils.SMS_SEND_LOCK + phone, 1, RedisUtils.LOCK_EXPIRE, TimeUnit.SECONDS);
 
         try {
-            SmsRequestDTO requestDTO=new SmsRequestDTO();
+            // 组装短信参数
+            SmsRequestDTO requestDTO = new SmsRequestDTO();
             requestDTO.setMobile(phone);
-            String[] tmpValues={code,String.valueOf(RedisUtils.SMS_EXPIRE)};
+            String[] tmpValues = {code, String.valueOf(RedisUtils.SMS_EXPIRE)};
             requestDTO.setTemplateVars(tmpValues);
-            AjaxResult result=smsRequestClient.sendSms(requestDTO);
-            //判断是否成功
-            if(!result.isSuccess()){
+
+            //调用发送接口
+            AjaxResult result = smsRequestClient.sendSms(requestDTO);
+            if (!result.isSuccess()) {
                 return result;
             }
+
             System.out.println("短信发送成功 → phone=" + phone + "，code=" + code);
             return AjaxResult.success("验证码发送成功");
         } catch (Exception e) {
-            // 发送失败，删除缓存
+            // 发送失败，清理缓存
             redisCache.deleteObject(RedisUtils.SMS_CODE_KEY + phone);
             redisCache.deleteObject(RedisUtils.SMS_SEND_LOCK + phone);
             System.err.println("短信发送失败：" + e.getMessage());