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cache缓存帮助类
public class CacheHelper { /// <summary> /// 创建缓存项的文件 /// </summary> /// <param name="key">缓存Key</param> /// <param name="obj">object对象</param> public static void Insert(string key, object obj) { //创建缓存 HttpContext.Current.Cache.Insert(key, obj); } /// <summary> /// 移除缓存项的文件 /// </summary> /// <param name="key">缓存Key</param> public static void Remove(string key) { //创建缓存 HttpContext.Current.Cache.Remove(key); } /// <summary> /// 创建缓存项的文件依赖 /// </summary> /// <param name="key">缓存Key</param> /// <param name="obj">object对象</param> /// <param name="fileName">文件绝对路径</param> public static void Insert(string key, object obj, string fileName) { //创建缓存依赖项 CacheDependency dep = new CacheDependency(fileName); //创建缓存 HttpContext.Current.Cache.Insert(key, obj, dep); } /// <summary> /// 创建缓存项过期 /// </summary> /// <param name="key">缓存Key</param> /// <param name="obj">object对象</param> /// <param name="expires">过期时间(分钟)</param> public static void Insert(string key, object obj, int expires) { HttpContext.Current.Cache.Insert(key, obj, null, Cache.NoAbsoluteExpiration, new TimeSpan(0, expires, 0)); } /// <summary> /// 获取缓存对象 /// </summary> /// <param name="key">缓存Key</param> /// <returns>object对象</returns> public static object Get(string key) { if (string.IsNullOrEmpty(key)) { return null; } return HttpContext.Current.Cache.Get(key); } /// <summary> /// 获取缓存对象 /// </summary> /// <typeparam name="T">T对象</typeparam> /// <param name="key">缓存Key</param> /// <returns></returns> public static T Get<T>(string key) { object obj = Get(key); return obj == null ? default(T) : (T)obj; } }
cache缓存帮助类
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