Web缓存管理代码,Asp.Net代码库,德仔网

代码语言
代码分类
【Asp.Net】 Web缓存管理
作者:Dezai.CN / 发布于2012/8/13/ 560
Web缓存管理
<div>using System;
using System.Collections;
using System.Text.RegularExpressions;
using System.Web;
using System.Web.Caching;
using System.Collections.Generic;</div>
<div>namespace Pub.Class
{
 /// <summary>
 /// Web缓存管理
 /// </summary>
 public class WebCache
 {
 #region 构造器
 private WebCache() { }
<div> static WebCache() {
 HttpContext context = HttpContext.Current;
 if (context != null) { _cache = (Cache)context.Cache; } else { _cache = HttpRuntime.Cache; }
 }
 #endregion</div>
<div> #region 公有靜态字段
 /// <summary>
 /// 日缓存因子
 /// </summary>
 public static readonly int DayFactor = 17280;
 /// <summary>
 /// 小时缓存因子
 /// </summary>
 public static readonly int HourFactor = 720;
 /// <summary>
 /// 分缓存因子
 /// </summary>
 public static readonly int MinuteFactor = 12;
 /// <summary>
 /// 秒缓存因子
 /// </summary>
 public static readonly double SecondFactor = 0.2;
 #endregion</div>
<div> #region 私有静态字段
 private static readonly Cache _cache;
 /// <summary>
 /// 缓存因子
 /// </summary>
 private static int Factor = 5;
 #endregion</div>
<div> #region 静态方法
 public static IList<CachedItem> GetList(){
 IList<CachedItem> list = new List<CachedItem>();
 IDictionaryEnumerator CacheEnum = _cache.GetEnumerator();
 while (CacheEnum.MoveNext()) {
 list.Add(new CachedItem(CacheEnum.Key.ToString(),CacheEnum.Value.GetType().ToString()));
 }
 return list;
 }
 /// <summary>
 /// 重新设置缓存因子 
 /// </summary>
 /// <param name="cacheFactor"></param>
 public static void ReSetFactor(int cacheFactor) { Factor = cacheFactor; }
 /// <summary>
 /// 清空所有缓存项目
 /// </summary>
 public static void Clear() {
 IDictionaryEnumerator CacheEnum = _cache.GetEnumerator();
 ArrayList al = new ArrayList();
 while (CacheEnum.MoveNext()) { al.Add(CacheEnum.Key); }
<div> foreach (string key in al){ _cache.Remove(key); }
 }
 /// <summary>
 /// 删除缓存
 /// </summary>
 /// <param name="pattern">缓存键正则匹配模式</param>
 public static void RemoveByPattern(string pattern) {
 IDictionaryEnumerator CacheEnum = _cache.GetEnumerator();
 Regex regex = new Regex(pattern, RegexOptions.IgnoreCase | RegexOptions.Singleline | RegexOptions.Compiled);
 while (CacheEnum.MoveNext()) {
 if (regex.IsMatch(CacheEnum.Key.ToString()))
 _cache.Remove(CacheEnum.Key.ToString());
 }
 }
 /// <summary>
 /// 删除缓存
 /// </summary>
 /// <param name="key">缓存键名</param>
 public static void Remove(string key) { _cache.Remove(key); }
 /// <summary>
 /// 增加缓存项目 
 /// </summary>
 /// <param name="key">缓存键名</param>
 /// <param name="obj">缓存对象</param>
 public static void Insert(string key, object obj) { Insert(key, obj, null, 1); }
 /// <summary>
 /// 增加缓存项目(缓存时间:小时缓存因子*12)
 /// </summary>
 /// <param name="key">缓存键名</param>
 /// <param name="obj">缓存对象</param>
 /// <param name="dep">缓存依赖荐</param>
 public static void Insert(string key, object obj, CacheDependency dep) { Insert(key, obj, dep, HourFactor * 12); }
 /// <summary>
 /// 增加缓存项目
 /// </summary>
 /// <param name="key">缓存键名</param>
 /// <param name="obj">缓存对象</param>
 /// <param name="seconds">缓存秒数</param>
 public static void Insert(string key, object obj, int seconds) { Insert(key, obj, null, seconds); }
 /// <summary>
 /// 增加缓存项目
 /// </summary>
 /// <param name="key">缓存键名</param>
 /// <param name="obj">缓存对象</param>
 /// <param name="seconds">缓存秒数</param>
 /// <param name="priority">缓存优先级</param>
 public static void Insert(string key, object obj, int seconds, CacheItemPriority priority) { Insert(key, obj, null, seconds, priority); }
 /// <summary>
 /// 增加缓存项目
 /// </summary>
 /// <param name="key">缓存键名</param>
 /// <param name="obj">缓存对象</param>
 /// <param name="dep">缓存依赖项</param>
 /// <param name="seconds">缓存秒数</param>
 public static void Insert(string key, object obj, CacheDependency dep, int seconds) { Insert(key, obj, dep, seconds, CacheItemPriority.Normal); }
 /// <summary>
 /// 增加缓存
 /// </summary>
 /// <param name="key">缓存键名</param>
 /// <param name="obj">缓存对象</param>
 /// <param name="dep">缓存依赖项</param>
 /// <param name="seconds">缓存秒数</param>
 /// <param name="priority">缓存优先级</param>
 public static void Insert(string key, object obj, CacheDependency dep, int seconds, CacheItemPriority priority) {
 if (obj != null) {
 _cache.Insert(key, obj, dep, DateTime.Now.AddSeconds(Factor * seconds), Cache.NoSlidingExpiration, priority, null);
 }
 }
 /// <summary>
 /// 微小缓存
 /// </summary>
 /// <param name="key">缓存键名</param>
 /// <param name="obj">缓存对象</param>
 /// <param name="secondFactor">缓存秒因子</param>
 public static void MicroInsert(string key, object obj, int secondFactor) {
 if (obj != null) {
 _cache.Insert(key, obj, null, DateTime.Now.AddSeconds(Factor * secondFactor), Cache.NoSlidingExpiration);
 }
 }
<div> /// <summary>
 /// 增加缓存项目
 /// </summary>
 /// <param name="key"></param>
 /// <param name="obj"></param>
 public static void Max(string key, object obj) { Max(key, obj, null); }
 /// <summary>
 /// 最大缓存对象
 /// </summary>
 /// <param name="key">缓存键名</param>
 /// <param name="obj">缓存对象</param>
 /// <param name="dep">缓存依赖项</param>
 public static void Max(string key, object obj, CacheDependency dep) {
 if (obj != null) {
 _cache.Insert(key, obj, dep, DateTime.MaxValue, Cache.NoSlidingExpiration, CacheItemPriority.AboveNormal, null);
 }
 }
 /// <summary>
 /// 获取缓存对象
 /// </summary>
 /// <param name="key">缓存键名</param>
 /// <returns>返回缓存对象</returns>
 public static object Get(string key) { return _cache[key]; }
 /// <summary>
 /// 根据秒缓存因子计算秒数
 /// </summary>
 public static int SecondFactorCalculate(int seconds) { return Convert.ToInt32(Math.Round((double)seconds * SecondFactor)); }
 #endregion
 }
}
试试其它关键字
　缓存管理　
同语言下
可能有用的
Dezai.CN贡献的其它代码(4037)