/// <summary>
/// 如果该键不存在，则通过使用指定的函数将键/值对添加到 Memcached 中。 如果该键存在，则返回新值或现有值。
/// </summary>
/// <param name="key">要添加的元素的键。</param>
/// <param name="valueFactory">用于为键生成值的函数。</param>
/// <param name="expiresAt">过期时间，默认永久有效</param>
/// <returns>键的值。 如果 Memcached 中已存在该键，则为该键的现有值；如果 Memcached 中不存在该键，则为新值。</returns>
public static T GetOrAdd <T>(string key, Func <string, T> valueFactory, DateTime expiresAt = default(DateTime))
{
if (key == null)
{
throw new ArgumentNullException(nameof(key));
}
if (valueFactory == null)
{
throw new ArgumentNullException(nameof(valueFactory));
}
T local = default(T);
IGetOperationResult <T> result = client.ExecuteGet <T>(key);
if (result.Success && result.HasValue)
{
local = result.Value;
}
else
{
local = valueFactory(key);
if (expiresAt == default(DateTime))
{
Set(key, local);
}
else
{
Set(key, local, expiresAt);
}
}
return(local);
}
public bool TryGetValue(CacheKey key, out HttpResponseMessage response)
{
response = null;
var operationResult = _memcachedClient.ExecuteGet <byte[]>(key.HashBase64);
if (operationResult.HasValue)
{
var ms = new MemoryStream(operationResult.Value);
response = _serializer.DeserializeToResponseAsync(ms).Result;
}
return(operationResult.HasValue);
}
public bool TryGetValue(CacheKey key, out TimedEntityTagHeaderValue eTag)
{
eTag = null;
var operationResult = _memcachedClient.ExecuteGet <string>(key.HashBase64);
if (!operationResult.Success || !operationResult.HasValue ||
string.IsNullOrEmpty(operationResult.Value))
{
return(false);
}
var value = operationResult.Value;
if (!TimedEntityTagHeaderValue.TryParse(value, out eTag))
{
return(false);
}
return(true);
}
protected void Page_Load(object sender, EventArgs e)
{
btnstuff.Click += (s, args) =>
{
var melClient = new SmtpClient();
melClient.Send("*****@*****.**", "*****@*****.**", "Bienvenue tygogoz", "contenu de test");
};
btnTestCache.Click += (s, args) =>
{
MemcachedClient mc = new MemcachedClient();
if ((DateTime.Now - LastTime) > TimeSpan.FromSeconds(10))
{
LastTime = DateTime.Now;
StoreOperationResult storeResults = (StoreOperationResult)mc.ExecuteStore(StoreMode.Set, "foo", LastTime.ToLongTimeString());
}
GetOperationResult getResults = (GetOperationResult)mc.ExecuteGet("foo");
lblTestCache.Text = getResults.Value.ToString();
};
}
protected void btnMemLook(object sender, EventArgs e)
{
string myConn = ConfigurationManager.AppSettings["BeITMemcacheIP"].ToString();
MemcachedClientConfiguration config = new MemcachedClientConfiguration();
config.AddServer(myConn, 11211);
config.Protocol = MemcachedProtocol.Binary;
MemcachedClient client = new MemcachedClient(config);
string keyval = key1.Text.Trim();
Object obj = new Object();
var getr = client.ExecuteGet(keyval);
if (client.TryGet(keyval, out obj))
{
Response.Write("<script>window.alert('" + obj + "');window.location.href='../Mem_RedisTest.aspx'</script>");
}
else
{
Response.Write("<script>window.alert('Key值不存在！');window.location.href='../Mem_RedisTest.aspx'</script>");
}
}
private static long TestMemcachedRead(int length)
{
var client = new MemcachedClient();
var sw = Stopwatch.StartNew();
for (int i = 0; i < length; i++)
{
var result = client.ExecuteGet("asdfasdf" + i.ToString()).Value.ToString();
if (result != stringToTest) throw new Exception();
}
sw.Stop();
client.Dispose();
return sw.ElapsedMilliseconds;
}
public bool Contains(string cacheKey)
{
return(cacheClient.ExecuteGet(cacheKey).HasValue);
}
