/// <summary>
/// 获取键值对
/// </summary>
internal static object GetValue(string key, bool onlyMemoryCache = false)
{
lock (_dictLocksForReadCache.GetOrAdd(key, key))
{
object memoryCacheValue = MemoryCacheUtil.GetValue(key);
if (memoryCacheValue != null)
{
return(memoryCacheValue);
}
else
{
if (!onlyMemoryCache)
{
CacheData cacheData = FileCacheUtil.GetCacheData(key);
if (cacheData != null)
{
int expirationSeconds = (int)cacheData.updateTime.AddSeconds(cacheData.expirationSeconds).Subtract(DateTime.Now).TotalSeconds; //剩余过期时间
if (cacheData.expirationSeconds == 0)
{
expirationSeconds = 0; //永不过期的情况
}
MemoryCacheUtil.SetValue(key, cacheData.value, expirationSeconds); //登录系统后(非首次登录)，MemoryCache为空，FileCache不为空
return(cacheData.value);
}
}
}
return(null);
}
}
/// <summary>
/// 保存键值对
/// </summary>
internal static void SetValue(string key, object value, bool onlyMemoryCache = false, int expirationSeconds = 0)
{
MemoryCacheUtil.SetValue(key, value, expirationSeconds);
if (!onlyMemoryCache) //有的数据是不能缓存在文件中的，只能缓存在内存中
{
FileCacheUtil.SetValue(key, value, expirationSeconds);
}
}
/// <summary>
/// 删除全部缓存
/// </summary>
public static void DeleteAll()
{
MemoryCacheUtil.DeleteAll();
FileCacheUtil.DeleteAll();
}
/// <summary>
/// 删除缓存
/// </summary>
public static void Delete(string key)
{
MemoryCacheUtil.Delete(key);
FileCacheUtil.Delete(key);
}