.net 方法内容缓存简化

调用：

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public string GetNodeName(string nodeNum)   {       Func<string> func = () =>       {           return db.FirstOrDefault<string>("SELECT PNodeName FROM  " + NodeNumTableName + " WHERE PNodeNum=@0 AND AppKey=@1", nodeNum, PublicVars.AppKey);       };       return CacheHelper.Set<string>(  func, 1200, nodeNum);     }

缓存帮助类：

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/// <summary>     /// 缓存帮助类     /// </summary>     public static class CacheHelper     {         /// <summary>         /// 获取         /// </summary>         /// <param name="name">key</param>         /// <returns></returns>         public static object Get(string name)         {             return HttpRuntime.Cache.Get(name);         }           /// <summary>         /// 获取         /// </summary>         /// <param name="method">缓存方法</param>         /// <param name="methodParams">方法参数（保证唯一性）</param>         /// <returns></returns>         public static object Get(MethodBase method, params object[] methodParams)         {             return HttpRuntime.Cache.Get(GetMethodCacheName(method, methodParams));         }           /// <summary>         /// 移除         /// </summary>         /// <param name="name">key</param>         public static void Remove(string name)         {             HttpRuntime.Cache.Remove(name);         }           /// <summary>         /// 移除所有缓存         /// </summary>         /// <returns></returns>         public static bool RemoveAll()         {             IDictionaryEnumerator iDictionaryEnumerator = HttpRuntime.Cache.GetEnumerator();             while (iDictionaryEnumerator.MoveNext())             {                 HttpRuntime.Cache.Remove(Convert.ToString(iDictionaryEnumerator.Key));             }             return true;         }           /// <summary>         /// 写入         /// </summary>         /// <param name="name">key</param>         /// <param name="value">value</param>         /// <param name="cacheDependency">依赖项</param>         /// <param name="timeOut">过期时间（秒）</param>         public static void Set(string name, object value, CacheDependency cacheDependency = null, int timeOut = 20 * 60)         {             if (value == null)//缓存空对象要报错             {                 return;             }             if (cacheDependency == null)             {                 HttpRuntime.Cache.Insert(name, value, null, DateTime.Now.AddSeconds(timeOut), TimeSpan.Zero);             }             else             {                 HttpRuntime.Cache.Insert(name, value, cacheDependency, Cache.NoAbsoluteExpiration, TimeSpan.FromSeconds(timeOut));             }         }           /// <summary>         /// 写入         /// </summary>         /// <typeparam name="T">返回类型</typeparam>         /// <param name="func">数据方法</param>         /// <param name="timeOut">缓存时间（秒）</param>         /// <param name="methodParams">方法参数（保证唯一性）</param>         /// <returns>缓存数据</returns>         public static T Set<T>(Func<T> func, int timeOut = 20 * 60, params object[] methodParams) where T : class         {             /*              * 注意事项：              * 1.本方法请勿滥用，太多的缓存也会降低性能              * 2.调用本方法一定要避免返回脏数据问题，请合理利用methodParams参数              * 3.缓存时间要控制在合理的时间段内，如果时间很短一定要考虑一个问题：缓存数据的利用率怎么样，是否真的需要缓存              * 4.返回后不能操作对象，否则可能出现缓存数据为操作后的对象问题              */             if (timeOut < 1)             {                 return func();             }             string cacheKey = GetMethodCacheName(func.Method, methodParams);             T cacheData = CacheHelper.Get(cacheKey) as T;             if (cacheData == null)             {                 cacheData = func();                 CacheHelper.Set(cacheKey, cacheData, null, timeOut);             }             return cacheData;         }           /// <summary>         /// 获取换成方法缓存名称         /// </summary>         /// <param name="method">缓存方法</param>         /// <param name="methodParams">方法参数（保证唯一性）</param>         /// <returns></returns>         public static string GetMethodCacheName(MethodBase method, object[] methodParams)         {             string cacheKey = $"CH_{method.DeclaringType.FullName}_{method.Name}";             if (methodParams != null && methodParams.Length > 0)             {                 cacheKey += "_" + MD5Helper.MD5Encrypt32(SerializeHelper.ToJson(methodParams));             }             return cacheKey;         }     }

　　

其他方法：AOP