/// <summary>
/// 获取缓存,数据类型为String
/// </summary>
/// <param name="key"></param>
/// <returns></returns>
public string Get(string key)
{
var db = RedisCacheConnection.CreateInstance().Database;
var result = db.StringGet(key);
return(result);
}
/// <summary>
/// 获取缓存,数据类型为String
/// </summary>
/// <param name="key"></param>
/// <returns></returns>
public async Task <string> GetAsync(string key)
{
var db = RedisCacheConnection.CreateInstance().Database;
var result = await db.StringGetAsync(key);
return(result);
}
/// <summary>
/// 批量设置缓存,数据类型为String
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="nodes"></param>
/// <returns></returns>
public List <bool> Set <T>(List <CacheNode <T> > nodes)
{
var db = RedisCacheConnection.CreateInstance().Database;
var batch = db.CreateBatch();
var tasks = new List <Task <bool> >();
for (var m = 0; m < nodes.Count; m++)
{
var json = JsonConvert.SerializeObject(nodes[m].Data);
if (nodes[m].CacheTime != default(TimeSpan))
{
tasks.Add(batch.StringSetAsync(nodes[m].Key, json, nodes[m].CacheTime));
}
else
{
tasks.Add(batch.StringSetAsync(nodes[m].Key, json));
}
}
batch.Execute();
Task.WaitAll(tasks.ToArray());
var result = new List <bool>();
foreach (var t in tasks)
{
result.Add(t.Result);
}
return(result);
}
/// <summary>
/// 批量设置缓存,数据类型为Hash,切莫一次性缓存大量数据
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="nodes"></param>
/// <returns></returns>
public async Task SetHashAsync <T>(List <CacheNode <T> > nodes)
{
if (nodes.Count > 65535)
{
throw new Exception("Hi guys, i can't digest all those data at one time! may be you can try 'SetAsync' ");
}
await Task.Run(() =>
{
var db = RedisCacheConnection.CreateInstance().Database;
var batch = db.CreateBatch();
var currentTime = DateTime.Now;
for (var m = 0; m < nodes.Count; m++)
{
var maps = ToMap(nodes[m].Data);
if (nodes[m].CacheTime != default(TimeSpan))
{
maps.Add("_ExpiryTime_", currentTime.Add(nodes[m].CacheTime).ToString());
}
foreach (var map in maps)
{
batch.HashSetAsync(nodes[m].Key, map.Key, map.Value);
}
}
batch.Execute();
});
}
/// <summary>
/// 获取缓存,数据类型为Hash
/// </summary>
/// <param name="key"></param>
/// <returns></returns>
public async Task <Dictionary <string, string> > GetHashAsync(string key)
{
var items = new Dictionary <string, string>();
var db = RedisCacheConnection.CreateInstance().Database;
var result = await db.HashGetAllAsync(key);
var kvps = result.ToDictionary();
if (kvps.Count == 0)
{
return(default);
/// <summary>
/// 设置缓存,数据类型为String
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="node"></param>
/// <returns></returns>
public async Task <bool> SetAsync <T>(CacheNode <T> node)
{
var db = RedisCacheConnection.CreateInstance().Database;
var json = JsonConvert.SerializeObject(node.Data);
if (node.CacheTime != default(TimeSpan))
{
return(await db.StringSetAsync(node.Key, json, node.CacheTime));
}
else
{
return(await db.StringSetAsync(node.Key, json));
}
}
/// <summary>
/// 缓存链接单例,
/// </summary>
/// <returns></returns>
public static RedisCacheConnection CreateInstance()
{
if (instance == null)
{
_connectionLock.Wait();
try
{
if (instance == null)
{
//设置比较大的线程池,据说能避免Timeout 陷阱
ThreadPool.SetMaxThreads(100, 100);
instance = new RedisCacheConnection();
Connection = ConnectionMultiplexer.Connect(ConnectionString);
Connection.PreserveAsyncOrder = false;
instance.Database = Connection.GetDatabase(-1, null);
}
}
finally
{
_connectionLock.Release();
}
}
else
{
if (Connection == null || !Connection.IsConnected)
{
_connectionLock.Wait();
try
{
if (Connection == null || !Connection.IsConnected)
{
ThreadPool.SetMaxThreads(100, 100);
Connection = ConnectionMultiplexer.Connect(ConnectionString);
Connection.PreserveAsyncOrder = false;
instance.Database = Connection.GetDatabase(-1, null);
}
}
finally
{
_connectionLock.Release();
}
}
}
return(instance);
}
/// <summary>
/// 设置缓存,数据类型为Hash
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="node"></param>
/// <returns></returns>
public async Task SetHashAsync <T>(CacheNode <T> node)
{
await Task.Run(() =>
{
var db = RedisCacheConnection.CreateInstance().Database;
var batch = db.CreateBatch();
var maps = ToMap(node.Data);
if (node.CacheTime != default(TimeSpan))
{
var currentTime = DateTime.Now;
maps.Add("_ExpiryTime_", currentTime.Add(node.CacheTime).ToString());
}
foreach (var map in maps)
{
batch.HashSetAsync(node.Key, map.Key, map.Value);
}
batch.Execute();
});
}
/// <summary>
/// 批量设置缓存,数据类型为String
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="nodes"></param>
/// <returns></returns>
public async Task SetAsync <T>(List <CacheNode <T> > nodes)
{
await Task.Run(() =>
{
var db = RedisCacheConnection.CreateInstance().Database;
var batch = db.CreateBatch();
for (var m = 0; m < nodes.Count; m++)
{
var json = JsonConvert.SerializeObject(nodes[m].Data);
if (nodes[m].CacheTime != default(TimeSpan))
{
batch.StringSetAsync(nodes[m].Key, json, nodes[m].CacheTime);
}
else
{
batch.StringSetAsync(nodes[m].Key, json);
}
}
batch.Execute();
});
}
/// <summary>
/// 判断key是否存在
/// </summary>
/// <param name="key"></param>
/// <returns></returns>
public async Task <bool> ExistsAsync(string key)
{
var db = RedisCacheConnection.CreateInstance().Database;
return(await db.KeyExistsAsync(key));
}
/// <summary>
/// 判断key是否存在
/// </summary>
/// <param name="key"></param>
/// <returns></returns>
public bool Exists(string key)
{
var db = RedisCacheConnection.CreateInstance().Database;
return(db.KeyExists(key));
}
