C# Cache缓存读取设置

时间：2019-08-12 22:05:47 阅读：118 评论：0 收藏：0 [点我收藏+]

原文：https://www.cnblogs.com/xuhongfei/p/8951878.html

先创建一个CacheHelper.cs类，代码如下：

[csharp] view plain copy

using System;
using System.Web;
using System.Collections;
using System.Web.Caching;
public class CacheHelper
{
/// <summary>
/// 获取数据缓存
/// </summary>
/// <param name="cacheKey">键</param>
public static object GetCache(string cacheKey)
{
var objCache = HttpRuntime.Cache.Get(cacheKey);
return objCache;
}
/// <summary>
/// 设置数据缓存
/// </summary>
public static void SetCache(string cacheKey, object objObject)
{
var objCache = HttpRuntime.Cache;
objCache.Insert(cacheKey, objObject);
}
/// <summary>
/// 设置数据缓存
/// </summary>
public static void SetCache(string cacheKey, object objObject, int timeout = 7200)
{
try
{
if (objObject == null) return;
var objCache = HttpRuntime.Cache;
//相对过期
//objCache.Insert(cacheKey, objObject, null, DateTime.MaxValue, timeout, CacheItemPriority.NotRemovable, null);
//绝对过期时间
objCache.Insert(cacheKey, objObject, null, DateTime.Now.AddSeconds(timeout), TimeSpan.Zero, CacheItemPriority.High, null);
}
catch (Exception)
{
//throw;
}
}
/// <summary>
/// 移除指定数据缓存
/// </summary>
public static void RemoveAllCache(string cacheKey)
{
var cache = HttpRuntime.Cache;
cache.Remove(cacheKey);
}
/// <summary>
/// 移除全部缓存
/// </summary>
public static void RemoveAllCache()
{
var cache = HttpRuntime.Cache;
var cacheEnum = cache.GetEnumerator();
while (cacheEnum.MoveNext())
{
cache.Remove(cacheEnum.Key.ToString());
}
}
}