72 lines
2.3 KiB
C#
72 lines
2.3 KiB
C#
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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using System.Reflection;
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using System.Web;
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namespace Song.ViewData.Attri
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{
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/// <summary>
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/// 方法是否支持缓存
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/// </summary>
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[AttributeUsage(AttributeTargets.Method)]
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public class CacheAttribute : WeishaAttr
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{
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//缓存名称
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private static string _cacheName = "ViewData_{0}.{1}_[{2}]";
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private int _expires = 10;
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/// <summary>
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/// 失效时间
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/// </summary>
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public int Expires
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{
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get { return _expires; }
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set
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{
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_expires = value;
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}
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}
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/// <summary>
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/// 获取缓存
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/// </summary>
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/// <param name="method"></param>
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/// <param name="letter"></param>
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/// <returns></returns>
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public static object GetResult(MethodInfo method, Letter letter)
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{
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string cacheName = string.Format(_cacheName, method.ReturnType.FullName, method.Name, letter.ToString());
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return HttpRuntime.Cache.Get(cacheName);
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}
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/// <summary>
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/// 移除和某个缓存
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/// </summary>
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/// <param name="method"></param>
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/// <param name="letter"></param>
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public static void Remove(MethodInfo method, Letter letter)
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{
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//缓存名称
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string cacheName = string.Format(_cacheName, method.ReturnType.FullName, method.Name, letter.ToString());
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HttpRuntime.Cache.Remove(cacheName);
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}
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/// <summary>
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/// 创建缓存
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/// </summary>
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/// <param name="expires"></param>
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/// <param name="method"></param>
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/// <param name="letter"></param>
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/// <param name="result"></param>
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public static void Insert(int expires, MethodInfo method, Letter letter, object result)
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{
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if (result == null) return;
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//缓存名称
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string cacheName = string.Format(_cacheName, method.ReturnType.FullName, method.Name, letter.ToString());
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//过期时间
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DateTime expTime = DateTime.Now.AddMinutes(expires);
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HttpRuntime.Cache.Insert(cacheName, result, null, expTime, TimeSpan.Zero);
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}
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}
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}
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