/// <summary>
/// 仿照memoryCache.GetOrCreateAsync的IDistributedCache版本
/// </summary>
public static async Task <TItem> GetOrCreateAsync <TItem>(
this IDistributedCache cache,
string key,
Func <DistributedCacheEntryOptions, Task <TItem> > factory)
{
// 先从缓存中获取，有就直接返回
var obj = cache.GetAsObject <TItem>(key);
if (obj != null)
{
return(obj);
}
var entry = new DistributedCacheEntryOptions();
// 没有的话，取了再添加到缓存里面
var result = await factory(entry);
cache.SetAsObject(key, result, entry);
return(result);
}
public User GetById(string id)
{
var cachedUser = _distributedCache.GetAsObject <User>(id);
if (cachedUser != null)
{
return(cachedUser);
}
var guid = Guid.Parse(id);
var dbUser = _unitOfWork.UserRepository.GetAsQueryable().FirstOrDefault(it => it.Id == guid);
if (dbUser == null)
{
throw new NotFoundException("user.NotFound", "user doesn't not found!");
}
_distributedCache.SetAsObject(dbUser.Id.ToString(), dbUser);
return(dbUser);
}