ASP.NET 中HttpRuntime.Cache緩存數據

最近在開始一個微信開發，發現微信的Access_Token獲取每天次數是有限的，然後想到緩存，正好看到微信教程裡面推薦HttpRuntime.Cache緩存就順便看了下。

寫了（Copy）了一個輔助類，目前只包括創建，獲取，及清空

下麵是代碼：

 1     using System;
 2     using System.Collections;
 3     using System.Collections.Generic;
 4     using System.Linq;
 5     using System.Web;
 6     using System.Web.Caching;
 7 
 8     namespace TEST.Public
 9     {
10         public class CacheHelper
11         {
12 
13             /// <summary>
14             /// 創建緩存
15             /// </summary>
16             /// <param name="key">緩存的Key</param>
17             /// <param name="value">緩存的數據</param>
18             /// <param name="cacheDependency">依賴項，一般為null</param>
19             /// <param name="dateTime">緩存過期時間</param>
20             /// <param name="timeSpan">設置緩存是不使用過期還是到時間就過期</param>
21             /// <param name="cacheItemPriority">緩存優先順序</param>
22             /// <param name="cacheItemRemovedCallback">回調方法，一般為null</param>
23             /// <returns></returns>
24             public bool CreateCache(string key, object value, CacheDependency cacheDependency, DateTime dateTime, TimeSpan timeSpan,
25                 CacheItemPriority cacheItemPriority, CacheItemRemovedCallback cacheItemRemovedCallback)
26             {
27                 if (string.IsNullOrEmpty(key) || value == null)
28                 {
29                     return false;
30                 }
31                 HttpRuntime.Cache.Insert(key, value, cacheDependency, dateTime, timeSpan, cacheItemPriority, cacheItemRemovedCallback);
32                 return true;
33             }
34 
35             /// <summary>
36             /// 獲取緩存
37             /// </summary>
38             /// <param name="key"></param>
39             /// <returns></returns>
40             public object GetCache(string key)
41             {
42                 return string.IsNullOrEmpty(key) ? null : HttpRuntime.Cache.Get(key);
43             }
44 
45 
46             /// <summary>
47             /// 移除所有緩存
48             /// </summary>
49             /// <returns></returns>
50             public bool RemoveAll()
51             {
52                 IDictionaryEnumerator iDictionaryEnumerator = HttpRuntime.Cache.GetEnumerator();
53                 while (iDictionaryEnumerator.MoveNext())
54                 {
55                     HttpRuntime.Cache.Remove(Convert.ToString(iDictionaryEnumerator.Key));
56                 }
57                 return true;
58             }
59         }
60     }