From 95bad4cdfa3a6dba66659efeae19cb4cd014f937 Mon Sep 17 00:00:00 2001
From: yanghongwei <hongwei7458@163.com>
Date: Wed, 26 Mar 2025 11:23:39 +0800
Subject: [PATCH] =?UTF-8?q?=E6=96=B9=E6=B3=95=E5=A2=9E=E5=8A=A0?=
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---
 Common/Redis/RedisService.cs | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/Common/Redis/RedisService.cs b/Common/Redis/RedisService.cs
index 9fcde9a..dc7c8f4 100644
--- a/Common/Redis/RedisService.cs
+++ b/Common/Redis/RedisService.cs
@@ -54,5 +54,28 @@ namespace LY.App.Common.Redis
         {
             return await _db.KeyExistsAsync(key);
         }
+        /// <summary>
+        /// 获取数据，如果不存在则从数据源获取并存入 Redis
+        /// </summary>
+        /// <typeparam name="T">数据类型</typeparam>
+        /// <param name="key">Redis Key</param>
+        /// <param name="factory">数据源方法</param>
+        /// <param name="expiry">可选的过期时间</param>
+        /// <returns>获取到的值</returns>
+        public async Task<T?> GetOrSetAsync<T>(string key, Func<Task<T>> factory, TimeSpan? expiry = null)
+        {
+            var value = await GetAsync<T>(key);
+            if (value is not null)
+            {
+                return value;
+            }
+
+            value = await factory();
+            if (value is not null)
+            {
+                await SetAsync(key, value, expiry);
+            }
+            return value;
+        }
     }
 }