qqq

Context/CacheHelper.cs

@@ -0,0 +1,66 @@
+using Microsoft.Extensions.Caching.Distributed;
+using Microsoft.Extensions.Caching.Memory;
+
+namespace RB_MES_API.Context
+{
+    /// <summary>
+    /// 缓存处理
+    /// </summary>
+    public class CacheHelper
+    {
+        //public CacheHelper Defalut=new CacheHelper();
+        private static IMemoryCache _cache =new MemoryCache(new MemoryCacheOptions());
+        /// <summary>
+        /// 读取缓存
+        /// </summary>
+        /// <param name="cacheKey"></param>
+        /// <returns></returns>
+        public static T GetCache<T>(string cacheKey)
+        {            
+            if(string.IsNullOrEmpty(cacheKey))
+            {
+                throw new ArgumentNullException(nameof(cacheKey));
+            }
+            T cache;
+            _cache.TryGetValue(cacheKey, out cache);
+            return cache;
+        }
+        /// <summary>
+        /// 设置缓存（滑动过期）
+        /// </summary>
+        /// <typeparam name="T"></typeparam>
+        /// <param name="key">关键字</param>
+        /// <param name="value">缓存值</param>
+        public static void Set_AbsluteExpire<T>(string key,T value)
+        {
+            if (string.IsNullOrEmpty(key))
+            {
+                throw new ArgumentNullException(nameof(key));
+            }
+            T v;
+            if(_cache.TryGetValue(key, out v))
+            {
+                _cache.Remove(key);
+            }
+            _cache.Set(key, value, TimeSpan.FromMinutes(20));
+        }
+        /// <summary>
+        /// 移除缓存
+        /// </summary>
+        /// <param name="key"></param>
+        public static void Remove(string key)
+        {
+            if (string.IsNullOrEmpty(key))
+            {
+                throw new ArgumentNullException(nameof(key));
+            }
+            _cache.Remove(key);
+        }
+
+        public void Dispose()
+        {
+            if(_cache != null) { _cache.Dispose(); }
+            GC.SuppressFinalize(this);
+        }
+    }
+}