From 28633df9cdac5108c9befdca3588014028a8b6df Mon Sep 17 00:00:00 2001
From: hant <hant@cherrybless.com>
Date: Mon, 30 Jun 2025 22:38:27 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E6=94=B9=E8=AE=A2=E5=8D=95=E7=BC=96?=
 =?UTF-8?q?=E5=8F=B7?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 application/admin/model/Order.php            |  8 +++---
 application/common/services/RedisService.php | 28 ++++++++++++++++++++
 2 files changed, 31 insertions(+), 5 deletions(-)
 create mode 100644 application/common/services/RedisService.php

diff --git a/application/admin/model/Order.php b/application/admin/model/Order.php
index ec0076f..1036f48 100644
--- a/application/admin/model/Order.php
+++ b/application/admin/model/Order.php
@@ -3,6 +3,7 @@
 namespace app\admin\model;
 
 use app\admin\library\Auth;
+use app\common\services\RedisService;
 use think\Cache;
 use think\Model;
 use traits\model\SoftDelete;
@@ -289,11 +290,8 @@ class Order extends Model
         $date = date('ymd'); // 6 位日期
         $key = 'order_inc:' . date('Ymd');
 
-        $inc = Cache::store('redis')->inc($key); // 自增
-
-        // 设置 key 过期（防止 key 永久存在）
-        $handler = Cache::store('redis')->handler();
-        $handler->expire($key, 86400); // 设置 1 天过期
+        $redis = new RedisService(0);
+        $inc = $redis->incrWithExpire($key);
 
         if ($inc > 9999) {
             throw new \Exception('订单号已满');
diff --git a/application/common/services/RedisService.php b/application/common/services/RedisService.php
new file mode 100644
index 0000000..f1a1840
--- /dev/null
+++ b/application/common/services/RedisService.php
@@ -0,0 +1,28 @@
+<?php
+
+namespace app\common\services;
+
+use think\Cache;
+
+class RedisService
+{
+    protected $redis;
+
+    /**
+     * @param int $db Redis数据库编号，默认 0
+     */
+    public function __construct(int $db = 0)
+    {
+        $this->redis = Cache::store('redis')->handler();
+        $this->redis->select($db);
+    }
+
+    public function incrWithExpire(string $key, int $expireSeconds = 86400)
+    {
+        $val = $this->redis->incr($key);
+        if ($val === 1) {
+            $this->redis->expire($key, $expireSeconds);
+        }
+        return $val;
+    }
+}
\ No newline at end of file