2.应用数据缓存-Cache
1.引入CacheHelper.cs
CacheHelper.cs文件源码在下面;
2.介绍用法:
//键
string ips = "键";
//值;得到当前时间
long Now_time = DateTime.Now.ToFileTime();
//存;设置过期缓存时间2s;键值对形式存入;Insert方法存入
CacheHelper.SetCache(ips, Now_time,TimeSpan.FromSeconds(2));
//取;通过键取值,取出来的是object类型,我这里进行了强转Convert.ToInt64;
long Get_time = Convert.ToInt64(CacheHelper.GetCache(ips));
//清除全部缓存
CacheHelper.RemoveAllCache();
Ps:CacheHelper.cs文件源码
using System;
using System.Collections;
using System.Web;
namespace JJQ_Model
{
/// <summary>
/// Cache缓存帮助类
/// </summary>
public class CacheHelper
{
/// <summary>
/// 获取数据缓存
/// </summary>
/// <param name="CacheKey">键</param>
public static object GetCache(string CacheKey)
{
System.Web.Caching.Cache objCache = HttpRuntime.Cache;
return objCache[CacheKey];
}
/// <summary>
/// 设置数据缓存
/// 向 Cache 对象插入项,该项带有一个缓存键引用其位置,并使用 CacheItemPriority 枚举提供的默认值。
/// </summary>
public static void SetCache(string CacheKey, object objObject)
{
System.Web.Caching.Cache objCache = HttpRuntime.Cache;
objCache.Insert(CacheKey, objObject);
}
/// <summary>
/// 设置数据缓存
/// </summary>
public static void SetCache(string CacheKey, object objObject, TimeSpan Timeout)
{
System.Web.Caching.Cache objCache = HttpRuntime.Cache;
objCache.Insert(CacheKey, objObject, null, DateTime.MaxValue, Timeout, System.Web.Caching.CacheItemPriority.NotRemovable, null);
}
/// <summary>
/// 设置数据缓存
/// </summary>
public static void SetCache(string CacheKey, object objObject, DateTime absoluteExpiration, TimeSpan slidingExpiration)
{
System.Web.Caching.Cache objCache = HttpRuntime.Cache;
objCache.Insert(CacheKey, objObject, null, absoluteExpiration, slidingExpiration);
}
/// <summary>
/// 移除指定数据缓存
/// </summary>
public static void RemoveAllCache(string CacheKey)
{
System.Web.Caching.Cache _cache = HttpRuntime.Cache;
_cache.Remove(CacheKey);
}
/// <summary>
/// 移除全部缓存
/// </summary>
public static void RemoveAllCache()
{
System.Web.Caching.Cache _cache = HttpRuntime.Cache;
IDictionaryEnumerator CacheEnum = _cache.GetEnumerator();
while (CacheEnum.MoveNext())
{
_cache.Remove(CacheEnum.Key.ToString());
}
}
}
}
原文地址:https://www.cnblogs.com/jsll/p/11619306.html
时间: 2024-10-10 21:06:30