System.Web.Caching-白红宇

System.Web.Caching

阅读量：6708 次

发布时间：2019-06-25

本文共 3478 字，大约阅读时间需要 11 分钟。

System.Web.Caching简单封装类：

1 using System;  2 using System.Collections.Generic;  3 using System.Web.Caching;  4 using System.Web;  5 using System.Collections;  6   7 namespace APP.HttpCache  8 {  9     public class CacheHelper 10     { 11         private static Cache cacheObj = HttpRuntime.Cache; 12  13         ///  14         /// 简单key，vlaue写入 15         /// 
 16         ///  17         ///  18         public static void Insert(string key, object value) 19         { 20             cacheObj.Insert(key, value); 21         } 22  23         ///  24         /// 设置绝对过期时间 25         /// 
 26         ///  27         ///  28         ///  29         ///  30         public static void Insert(string key, object value, DateTime absoluteExpiration) 31         { 32             cacheObj.Insert(key, value, null, absoluteExpiration, Cache.NoSlidingExpiration); 33         } 34  35         ///  36         /// 设置平滑过期 37         /// 
 38         ///  39         ///  40         ///  41         public static void Insert(string key, object value, TimeSpan slidingExpiration) 42         { 43             cacheObj.Insert(key, value, null, Cache.NoAbsoluteExpiration, slidingExpiration); 44         } 45  46         ///  47         /// 得到vlaue 48         /// 
 49         ///  50         /// 
       51         public static object Get(string key) 52         { 53             return cacheObj.Get(key); 54         } 55  56         ///  57         /// 得到vlaue 58         /// 
 59         ///  60         /// 
       61         public static T Get
      
       (string key) 62         { 63             var v = cacheObj.Get(key); 64             return v == null ? default(T) : (T)Convert.ChangeType(v, typeof(T)); 65         } 66  67         /// 
        68         /// 移除key 69         /// 
 70         /// 
        71         /// 
        72         public static void Delete(string key) 73         { 74             cacheObj.Remove(key); 75         } 76  77         /// 
        78         /// 移除key 79         /// 
 80         /// 
        81         /// 
        82         public static object Remove(string key) 83         { 84             return cacheObj.Remove(key); 85         } 86  87         /// 
        88         /// 移除key 89         /// 
 90         /// 
        91         /// 
        92         public static T Remove
       
        (string key) 93         { 94             var v = cacheObj.Remove(key); 95             return v == null ? default(T) : (T)Convert.ChangeType(v, typeof(T)); 96         } 97  98         /// 
         99         /// 缓存key数量100         /// 
101         public static int KeyCount102         {103             get104             {105                 return cacheObj.Count;106             }107         }108 109         /// 
        110         /// 所有key111         /// 
112         public static ArrayList KeyAll()113         {114             var arr = new ArrayList();115             var item = cacheObj.GetEnumerator();116             while (item.MoveNext())117             {118                 arr.Add(item.Key);119             }120             return arr;121         }122 123         /// 
        124         /// 清空所有缓存125         /// 
126         public static void DeleteAll()127         {128             var item = cacheObj.GetEnumerator();129             while (item.MoveNext())130             {131                 cacheObj.Remove(item.Key.ToString());132             }133         }134     }135 }