/// <summary>
/// 获取指定键的缓存项，不存在则从指定委托获取，并回存到缓存中再返回
/// </summary>
public static TResult Get <TResult>(this IDistributedCache cache, string key, Func <TResult> getFunc, int cacheSeconds)
{
Check.GreaterThan(cacheSeconds, nameof(cacheSeconds), 0);
DistributedCacheEntryOptions options = new DistributedCacheEntryOptions();
options.SetAbsoluteExpiration(TimeSpan.FromSeconds(cacheSeconds));
return(cache.GetCache <TResult>(key, getFunc, options));
}
/// <summary>
/// Syncronous version of GetCacheGroupAsync
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="cache"></param>
/// <param name="group"></param>
/// <returns></returns>
public static T[] GetCacheGroup <T>(this IDistributedCache cache, string group)
{
string[] keyList = GetKeys(group);
T[] result = new T[keyList.Length];
for (int i = 0; i < result.Length; ++i)
{
result[i] = cache.GetCache <T>(keyList[i]);
}
return(result);
}