public void ResetExpire()
{
if (!RedisConfig.UseRedis)
{
return;
}
using (var client = RedisClientManager.GetClient())
{
client.ExpireEntryIn(RedisKey, TimeSpan.FromMinutes(RedisConfig.TimeOut));
}
}
/// <summary>
/// 判断session项是否存在
/// </summary>
/// <param name="key"></param>
/// <returns></returns>
public bool Exists(string key)
{
if (!RedisConfig.UseRedis)
{
return(HttpContext.Current.Session[key] != null);
}
using (var client = RedisClientManager.GetClient())
{
return(client.HashContainsEntry(RedisKey, key));
}
}
/// <summary>
/// 清空Session
/// </summary>
public void Clear()
{
if (!RedisConfig.UseRedis)
{
HttpContext.Current.Session.Clear();
return;
}
using (var client = RedisClientManager.GetClient())
{
client.Remove(RedisKey);
_cacheItems.Clear();
}
}
/// <summary>
/// 移除一个Session项
/// </summary>
/// <param name="field"></param>
/// <returns></returns>
public bool Remove(string field)
{
if (!RedisConfig.UseRedis)
{
if (HttpContext.Current.Session == null)
{
return(false);
}
HttpContext.Current.Session.Remove(field);
}
using (var client = RedisClientManager.GetClient())
{
RemoveItemFromCaches(field);
return(client.RemoveEntryFromHash(RedisKey, field));
}
}
/// <summary>
/// 获取一个Session项
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="field"></param>
/// <returns></returns>
public T Get <T>(string field)
{
if (!RedisConfig.UseRedis)
{
if (HttpContext.Current.Session == null)
{
return(default(T));
}
return((T)HttpContext.Current.Session[field]);
}
var item = GetItemFromCaches(field);
if (item != null)
{
return((T)item);
}
using (var client = RedisClientManager.GetClient())
{
var str = client.GetValueFromHash(RedisKey, field);
T value = SerializeHelper.DeserializeObject <T>(str);
AddItemToCache(field, value);
if (null == value)
{
str = client.GetValueFromHash(RedisKey, field);
value = SerializeHelper.DeserializeObject <T>(str);
if (null == value)
{
var ts = client.GetTimeToLive(RedisKey);
LogHelper.WriteLog(
string.Format(ErrorMessageFormat, field, RedisKey, ts.TotalSeconds, str),
new Exception("两次查询后,结果依然是空"));
}
}
//ResetExpire();
return(value);
}
}
/// <summary>
/// 设置Session项
/// </summary>
/// <param name="key"></param>
/// <param name="value"></param>
public void Set(string key, object value)
{
if (!RedisConfig.UseRedis)
{
if (HttpContext.Current.Session == null)
{
return;
}
HttpContext.Current.Session[key] = value;
return;
}
using (var client = RedisClientManager.GetClient())
{
RedisClientManager.UseTransaction(client, t =>
{
t.QueueCommand(c => c.SetEntryInHash(RedisKey, key, SerializeHelper.SerializeObject(value)));
t.QueueCommand(c => c.ExpireEntryIn(RedisKey, TimeSpan.FromMinutes(RedisConfig.TimeOut)));
});
}
AddItemToCache(key, value);
}
