标签：blog class code ext color http
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internal
class CacheHelper { /// <summary> /// Insert value into the cache using /// appropriate name/value pairs /// </summary> /// <typeparam name="T">Type of cached item</typeparam> /// <param name="o">Item to be cached</param> /// <param name="key">Name of item</param> public
static void Add<T>(T o, string
key) { // NOTE: Apply expiration parameters as you see fit. // In this example, I want an absolute // timeout so changes will always be reflected // at that time. Hence, the NoSlidingExpiration. HttpContext.Current.Cache.Insert( key, o, null, DateTime.Now.AddMinutes(1440), System.Web.Caching.Cache.NoSlidingExpiration); } /// <summary> /// Remove item from cache /// </summary> /// <param name="key">Name of cached item</param> public
static void Clear(string
key) { HttpContext.Current.Cache.Remove(key); } /// <summary> /// Check for item in cache /// </summary> /// <param name="key">Name of cached item</param> /// <returns></returns> public
static bool Exists(string
key) { return
HttpContext.Current.Cache[key] != null; } /// <summary> /// Retrieve cached item /// </summary> /// <typeparam name="T">Type of cached item</typeparam> /// <param name="key">Name of cached item</param> /// <param name="value">Cached value. Default(T) if /// item doesn‘t exist.</param> /// <returns>Cached item as type</returns> public
static bool Get<T>(string
key, out
T value) { try { if
(!Exists(key)) { value = default(T); return
false; } value = (T) HttpContext.Current.Cache[key]; } catch { value = default(T); return
false; } return
true; } |
使用方法：
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public
override List<Employee> GetEmployeeList(){ string
key = ConfigurationHelper.CacheKeyEmployeeList; List<Employee> employees = CacheHelper.Get<List<Employee>>(key); if
(employees == null) { employees = instance.GetEmployeeList(); CacheHelper.Add(employees, key); } return
employees;} |
C# CacheHepler Class,布布扣,bubuko.com
标签：blog class code ext color http
原文地址：http://www.cnblogs.com/objectboy/p/3716121.html
