c# redis stackexchange.redis 工具类
2021/8/27 19:07:28
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/// <summary>
/// 描 述：redis操作方法
/// </summary>
public class RedisCache
{
#region -- 连接信息 --
/// <summary>
/// syncTimeout:允许同步操作的时间（ms）
/// connectTimeout:连接操作的超时时间（ms）
/// responseTimeout:socket 健康检查的响应时间（ms，毫秒）
/// </summary>
public static string connString = "127.0.0.1:6379,password=,abortConnect=False,syncTimeout = 30000,connectTimeout=30000,responseTimeout=30000,allowAdmin = true";
/// <summary>
/// redis锁对象
/// </summary>
private static readonly object Locker = new object();
private static ConnectionMultiplexer _instance;
/// <summary>
/// 单例获取链接对象
/// </summary>
public static ConnectionMultiplexer _conn
{
get
{
if (_instance == null)
{
lock (Locker)
{
if (_instance == null || !_instance.IsConnected)
{
_instance = GetManager();
}
}
}
return _instance;
}
}
/// <summary>
/// 获取redis对象
/// </summary>
/// <param name="connectionString">链接字符串</param>
/// <returns></returns>
private static ConnectionMultiplexer GetManager(string connectionString = null)
{
connectionString = connectionString ?? connString;
var connect = ConnectionMultiplexer.Connect(connectionString);
//注册如下事件
connect.ConnectionFailed += RedisCacheEvent.MuxerConnectionFailed;
connect.ConnectionRestored += RedisCacheEvent.MuxerConnectionRestored;
connect.ErrorMessage += RedisCacheEvent.MuxerErrorMessage;
connect.ConfigurationChanged += RedisCacheEvent.MuxerConfigurationChanged;
connect.HashSlotMoved += RedisCacheEvent.MuxerHashSlotMoved;
connect.InternalError += RedisCacheEvent.MuxerInternalError;
return connect;
}
/// <summary>
/// 获取redis客户端根据库ID号
/// </summary>
/// <param name="dbId">redis库Id</param>
/// <returns></returns>
private static IDatabase GetClientManager(int dbId)
{
////预防死锁
_conn.PreserveAsyncOrder = false;
IDatabase dbObj = _conn.GetDatabase(dbId);
return dbObj;
}
#endregion
#region 执行redis命令公共方法
/// <summary>
/// 执行redis命令公共方法
/// </summary>
/// <typeparam name="T">返回类型（泛型）</typeparam>
/// <param name="func">委托（参数为委托）</param>
/// <returns></returns>
private static T Do<T>(Func<IDatabase, T> func, long dbId = 0)
{
try
{
var database = GetClientManager((int)dbId);
return func(database);
}
catch (Exception ex)
{
WriteSqlErrorLog(ex);
return default(T);
}
}
#endregion
#region 判断Key是否存在
/// <summary>
/// 判断Key是否存在
/// </summary>
/// <param name="key">键</param>
/// <param name="dbId">redis库名称</param>
/// <returns></returns>
public static bool ExitKey(string key, long dbId = 0)
{
var res = Do(db =>
{
return db.KeyExists(key);
}, dbId);
return res;
}
#endregion
#region 模糊查找KeyList
/// <summary>
/// 模糊查找KeyList
/// </summary>
/// <param name="keyname"></param>
/// <param name="dbId"></param>
/// <returns></returns>
public static List<string> SearchKeyList(string keyname, long dbId = 0)
{
List<string> res = new List<string>();
try
{
var db = _conn.GetEndPoints();
foreach (var ep in db)
{
var server = _conn.GetServer(ep);
var keys = server.Keys((int)dbId, "*" + keyname + "*");
foreach (var item in keys)
{
res.Add((string)item);
}
}
return res;
}
catch (Exception ex)
{
WriteSqlErrorLog(ex);
throw;
}
}
#endregion
#region 获取某个库所有的Key
/// <summary>
/// 获取某个库所有的Key
/// </summary>
/// <param name="dbId"></param>
/// <returns></returns>
public static List<string> GetAllKeys(long dbId = 0)
{
List<string> res = new List<string>();
try
{
var db = _conn.GetEndPoints();
foreach (var ep in db)
{
var server = _conn.GetServer(ep);
var keys = server.Keys((int)dbId);
foreach (var item in keys)
{
res.Add((string)item);
}
}
return res;
}
catch (Exception ex)
{
WriteSqlErrorLog(ex);
throw;
}
}
#endregion
#region -- Key-Value --
/// <summary>
/// 设置单体
/// </summary>
/// <typeparam name="T">值类型</typeparam>
/// <param name="key">键值</param>
/// <param name="t">值</param>
/// <param name="dbId">库Id</param>
/// <returns></returns>
public static bool Set<T>(string key, T t, long dbId = 0)
{
var res = Do(db =>
{
return db.StringSet(key, ConvertJson(t));
}, dbId);
return res;
}
/// <summary>
/// 设置单体
/// </summary>
/// <typeparam name="T">值类型</typeparam>
/// <param name="key">键值</param>
/// <param name="t">值</param>
/// <param name="timeSpan">保存时间</param>
/// <param name="dbId">库Id</param>
/// <returns></returns>
public static bool Set<T>(string key, T t, TimeSpan timeSpan, long dbId = 0)
{
var res = Do(db =>
{
return db.StringSet(key, ConvertJson(t), timeSpan);
}, dbId);
return res;
}
/// <summary>
/// 设置单体
/// </summary>
/// <typeparam name="T">值类型</typeparam>
/// <param name="key">键值</param>
/// <param name="t">值</param>
/// <param name="dateTime">过期时间</param>
/// <returns></returns>
public static bool Set<T>(string key, T t, DateTime dateTime, long dbId = 0)
{
var res = Do(db =>
{
DateTime nowDate = DateTime.Now;
TimeSpan timeSpan = dateTime.Subtract(nowDate).Duration();
return db.StringSet(key, ConvertJson(t), timeSpan);
}, dbId);
return res;
}
/// <summary>
/// 获取单体
/// </summary>
/// <typeparam name="T">值类型</typeparam>
/// <param name="key">键值</param>
/// <returns></returns>
public static T Get<T>(string key, long dbId = 0) where T : class
{
var resStr = Do(db =>
{
return db.StringGet(key);
}, dbId);
var res = ConvertObj<T>(resStr);
return res;
}
/// <summary>
/// 移除单体
/// </summary>
/// <param name="key">键值</param>
public static bool Remove(string key, long dbId = 0)
{
try
{
var res = Do(db =>
{
return db.KeyDelete(key);
}, dbId);
return res;
}
catch (Exception ex)
{
WriteSqlErrorLog(ex);
throw;
}
}
/// <summary>
/// 清空所有缓存
/// </summary>
public static bool RemoveAll(long dbId = 0)
{
try
{
var db = _conn.GetEndPoints();
foreach (var ep in db)
{
var server = _conn.GetServer(ep);
server.FlushDatabase((int)dbId);
}
return true;
}
catch (Exception ex)
{
WriteSqlErrorLog(ex);
throw;
}
}
#endregion
#region -- List --
/// <summary>
/// 添加列表
/// </summary>
/// <typeparam name="T">类型</typeparam>
/// <param name="key">键值</param>
/// <param name="t">值</param>
/// <param name="sp">过期时间</param>
/// <param name="dbId">库</param>
public static void List_Add<T>(string key, T t, TimeSpan sp, long dbId = 0)
{
var res = Do(db =>
{
if (db.ListRightPush(key, ConvertJson(t)) >= 0)
{
return db.KeyExpire(key, sp);
}
else
{
return false;
};
}, dbId);
}
/// <summary>
/// 移除列表某个值
/// </summary>
/// <typeparam name="T">类型</typeparam>
/// <param name="key">键值</param>
/// <param name="t">值</param>
/// <param name="dbId">库</param>
/// <returns></returns>
public static bool List_Remove<T>(string key, T t, long dbId = 0)
{
var res = Do(db =>
{
return db.ListRemove(key, ConvertJson(t)) >= 0;
}, dbId);
return res;
}
/// <summary>
/// 移除列表所有值
/// </summary>
/// <typeparam name="T">类型</typeparam>
/// <param name="key">键值</param>
/// <param name="dbId">库Id</param>
public static void List_RemoveAll(string key, long dbId = 0)
{
var res = Do(db =>
{
return db.KeyDelete(key);
}, dbId);
}
/// <summary>
/// 获取列表数据条数
/// </summary>
/// <param name="key"></param>
/// <param name="dbId"></param>
/// <returns></returns>
public static long List_Count(string key, long dbId = 0)
{
var res = Do(db =>
{
return db.ListLength(key);
}, dbId);
return res;
}
/// <summary>
/// 获取指定条数列表数据
/// </summary>
/// <typeparam name="T">类型</typeparam>
/// <param name="key">键值</param>
/// <param name="start">开始编号</param>
/// <param name="count">条数</param>
/// <param name="dbId">库</param>
/// <returns></returns>
public static List<T> List_GetRange<T>(string key, int start, int count, long dbId = 0)
{
var res = Do(db =>
{
int end = start + count - 1;
var resArry = db.ListRange(key, start, end);
List<T> result = ConvetList<T>(resArry);
return result;
}, dbId);
return res;
}
/// <summary>
/// 获取列表所有数据
/// </summary>
/// <typeparam name="T">类型</typeparam>
/// <param name="key">键值</param>
/// <param name="dbId">库数据</param>
/// <returns></returns>
public static List<T> List_GetList<T>(string key, long dbId = 0)
{
var res = Do(db =>
{
List<T> result = new List<T>();
var resArry = db.ListRange(key);
result.AddRange(ConvetList<T>(resArry));
return result;
}, dbId);
return res;
}
/// <summary>
/// 获取列表分页数据
/// </summary>
/// <typeparam name="T">类型</typeparam>
/// <param name="key">键值</param>
/// <param name="pageIndex">页码</param>
/// <param name="pageSize">每页条数</param>
/// <param name="dbId">库</param>
/// <returns></returns>
public static List<T> List_GetList<T>(string key, int pageIndex, int pageSize, long dbId = 0)
{
var res = Do(db =>
{
List<T> result = new List<T>();
int start = pageSize * (pageIndex - 1);
int end = pageIndex * pageSize - 1;
var resArry = db.ListRange(key, start, end);
result.AddRange(ConvetList<T>(resArry));
return result;
}, dbId);
return res;
}
#endregion
#region -- Set --
/// <summary>
/// 添加集合
/// </summary>
/// <typeparam name="T">类型</typeparam>
/// <param name="key">键值</param>
/// <param name="t">数值</param>
/// <param name="sp">有效时间</param>
/// <param name="dbId">库</param>
public static bool Set_Add<T>(string key, T t, TimeSpan sp, long dbId = 0)
{
var res = Do(db =>
{
string value = ConvertJson(t);
if (db.SetAdd(key, value) == true)
{
return db.KeyExpire(key, sp);
}
else
{
return false;
}
}, dbId);
return res;
}
/// <summary>
/// 集合是否包含指定数据
/// </summary>
/// <typeparam name="T">类型</typeparam>
/// <param name="key">键值</param>
/// <param name="t">数值</param>
/// <param name="dbId">库</param>
/// <returns></returns>
public static bool Set_Contains<T>(string key, T t, long dbId = 0)
{
var res = Do(db =>
{
return db.SetContains(key, ConvertJson(t));
}, dbId);
return res;
}
/// <summary>
/// 移除集合某个值
/// </summary>
/// <typeparam name="T">类型</typeparam>
/// <param name="key">键值</param>
/// <param name="t">数值</param>
/// <param name="dbId">库</param>
/// <returns></returns>
public static bool Set_Remove<T>(string key, T t, long dbId = 0)
{
var res = Do(db =>
{
return db.SetRemove(key, ConvertJson(t));
}, dbId);
return res;
}
#endregion
#region -- SortedSet --
/// <summary>
/// 添加数据到 SortedSet
/// </summary>
/// <typeparam name="T">类型</typeparam>
/// <param name="key">集合id</param>
/// <param name="t">数值</param>
/// <param name="sp">有效时间</param>
/// <param name="score">排序码</param>
/// <param name="dbId">库</param>
public static bool SortedSet_Add<T>(string key, T t, TimeSpan sp, double score, long dbId = 0)
{
var res = Do(db =>
{
string value = ConvertJson(t);
if (db.SortedSetAdd(key, value, score) == true)
{
return db.KeyExpire(key, sp);
}
else
{
return false;
}
}, dbId);
return res;
}
/// <summary>
/// 移除数据从SortedSet
/// </summary>
/// <typeparam name="T">类型</typeparam>
/// <param name="key">集合id</param>
/// <param name="t">数值</param>
/// <param name="dbId">库</param>
/// <returns></returns>
public static bool SortedSet_Remove<T>(string key, T t, long dbId = 0)
{
var res = Do(db =>
{
return db.SortedSetRemove(key, ConvertJson<T>(t));
}, dbId);
return res;
}
/// <summary>
/// 修剪SortedSet
/// </summary>
/// <param name="key">键值</param>
/// <param name="size">保留的条数</param>
/// <param name="dbId">库</param>
/// <param name="stop">删除的最大排名</param>
/// <returns></returns>
public static long SortedSet_Trim(string key, int size, long dbId = 0, long stop = 9999999)
{
var res = Do(db =>
{
return db.SortedSetRemoveRangeByRank(key, size, stop);
}, dbId);
return res;
}
/// <summary>
/// 获取SortedSet的长度
/// </summary>
/// <param name="key">键值</param>
/// <param name="dbId">库</param>
/// <returns></returns>
public static long SortedSet_Count(string key, long dbId = 0)
{
var res = Do(db =>
{
return db.SortedSetLength(key);
}, dbId);
return res;
}
/// <summary>
/// 获取SortedSet的分页数据
/// </summary>
/// <typeparam name="T">类型</typeparam>
/// <param name="key">键值</param>
/// <param name="pageIndex">页码</param>
/// <param name="pageSize">每页条数</param>
/// <param name="dbId">库</param>
/// <returns></returns>
public static List<T> SortedSet_GetList<T>(string key, int pageIndex, int pageSize, long dbId = 0)
{
var res = Do(db =>
{
var list = db.SortedSetRangeByValue(key, RedisValue.Null, RedisValue.Null, Exclude.None, (pageIndex - 1) * pageSize, pageSize);
var result = ConvetList<T>(list);
return result;
}, dbId);
return res;
}
/// <summary>
/// 获取SortedSet的全部数据
/// </summary>
/// <typeparam name="T">类</typeparam>
/// <param name="key">键值</param>
/// <param name="dbId">库</param>
/// <returns></returns>
public static List<T> SortedSet_GetListALL<T>(string key, long dbId = 0)
{
var res = Do(db =>
{
var list = db.SortedSetRangeByRank(key);
List<T> result = ConvetList<T>(list);
return result;
}, dbId);
return res;
}
#endregion
#region -- Hash --
/// <summary>
/// 判断某个数据是否已经被缓存
/// </summary>
/// <typeparam name="T">类型</typeparam>
/// <param name="key">hashID</param>
/// <param name="dataKey">键值</param>
/// <param name="dbId">库</param>
/// <returns></returns>
public static bool Hash_Exist(string key, string dataKey, long dbId = 0)
{
var res = Do(db => db.HashExists(key, dataKey), dbId);
return res;
}
/// <summary>
/// 存储数据到hash表需要设置失效时间
/// </summary>
/// <typeparam name="T">类型</typeparam>
/// <param name="key">hashID</param>
/// <param name="dataKey">键值</param>
/// <param name="t">数值</param>
/// <param name="dbId">库</param>
/// <returns></returns>
public static bool Hash_Set<T>(string key, string dataKey, T t, TimeSpan sp, long dbId = 0)
{
var res = Do(db =>
{
string value = ConvertJson(t);
if (db.HashSet(key, dataKey, value) == true)
{
return db.KeyExpire(key, sp);
}
else
{
return false;
}
}, dbId);
return res;
}
/// <summary>
/// 存储数据到hash表不需要设置失效时间
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="key"></param>
/// <param name="dataKey"></param>
/// <param name="t"></param>
/// <param name="dbId"></param>
/// <returns></returns>
public static bool Hash_Set<T>(string key, string dataKey, T t, long dbId = 0)
{
var res = Do(db =>
{
string value = ConvertJson(t);
return db.HashSet(key, dataKey, value);
}, dbId);
return res;
}
/// <summary>
/// 存储文本数据到hash表需要设置失效时间
/// </summary>
/// <param name="key"></param>
/// <param name="dataKey"></param>
/// <param name="value"></param>
/// <param name="dbId"></param>
/// <returns></returns>
public static bool Hash_SetText(string key, string dataKey, string value, TimeSpan sp, long dbId = 0)
{
var res = Do(db =>
{
if (db.HashSet(key, dataKey, value) == true)
{
return db.KeyExpire(key, sp);
}
else
{
return false;
}
}, dbId);
return res;
}
/// <summary>
/// 存储文本数据到hash表不需要设置失效时间
/// </summary>
/// <param name="key"></param>
/// <param name="dataKey"></param>
/// <param name="value"></param>
/// <param name="dbId"></param>
/// <returns></returns>
public static bool Hash_SetText(string key, string dataKey, string value, long dbId = 0)
{
var res = Do(db =>
{
return db.HashSet(key, dataKey, value);
}, dbId);
return res;
}
/// <summary>
/// 获取hashid数据集中所有key的集合
/// </summary>
public static List<string> GetHashKeys(string hashid, long dbId = 0)
{
var res = Do(db =>
{
List<string> result = new List<string>();
RedisValue[] arr = db.HashKeys(hashid);
foreach (var item in arr)
{
if (!item.IsNullOrEmpty)
{
result.Add(item.ToString());
}
}
return result;
}, dbId);
return res;
}
/// <summary>
/// 获取hashid数据集中的所有value集合
/// </summary>
public static List<string> GetHashValues(string hashid, long dbId = 0)
{
var res = Do(db =>
{
List<string> result = new List<string>();
RedisValue[] arr = db.HashValues(hashid);
foreach (var item in arr)
{
if (!item.IsNullOrEmpty)
{
result.Add(item.ToString());
}
}
return result;
}, dbId);
return res;
}
/// <summary>
/// 移除hash中的某值
/// </summary>
/// <param name="key">hashID</param>
/// <param name="dataKey">键值</param>
/// <param name="dbId">库</param>
/// <returns></returns>
public static bool Hash_Remove(string key, string dataKey, long dbId = 0)
{
var res = Do(db =>
{
return db.HashDelete(key, dataKey);
}, dbId);
return res;
}
/// <summary>
/// 移除整个hash
/// </summary>
/// <param name="key">hashID</param>
/// <param name="dbId">库</param>
/// <returns></returns>
public static bool Hash_Remove(string key, long dbId = 0)
{
var res = Do(db =>
{
RedisValue[] arr = db.HashKeys(key);
return db.HashDelete(key, arr) >= 0;
}, dbId);
return res;
}
/// <summary>
/// 从hash表获取数据
/// </summary>
/// <typeparam name="T">类型</typeparam>
/// <param name="key">hashID</param>
/// <param name="dataKey">键值</param>
/// <param name="dbId">库</param>
/// <returns></returns>
public static T Hash_Get<T>(string key, string dataKey, long dbId = 0)
{
var res = Do(db =>
{
string value = db.HashGet(key, dataKey);
return ConvertObj<T>(value);
}, dbId);
return res;
}
/// <summary>
/// 从hash表获取文本数据
/// </summary>
/// <typeparam name="T">类型</typeparam>
/// <param name="key">hashID</param>
/// <param name="dataKey">键值</param>
/// <param name="dbId">库</param>
/// <returns></returns>
public static string Hash_GetText(string key, string dataKey, long dbId = 0)
{
var res = Do(db =>
{
return db.HashGet(key, dataKey);
}, dbId);
return res;
}
/// <summary>
/// 获取整个hash的数据
/// </summary>
/// <typeparam name="T">类型</typeparam>
/// <param name="key">hashID</param>
/// <param name="dbId">库</param>
/// <returns></returns>
public static List<T> Hash_GetAll<T>(string key, long dbId = 0)
{
var res = Do(db =>
{
List<T> list = new List<T>();
RedisValue[] arr = db.HashKeys(key);
foreach (var item in arr)
{
if (!item.IsNullOrEmpty)
{
string value = db.HashGet(key, item);
list.Add(ConvertObj<T>(value));
}
}
return list;
}, dbId);
return res;
}
#endregion
#region -- Stream 消息队列 --
/// <summary>
/// 发送Redis消息
/// </summary>
/// <param name="key"></param>
/// <param name="value"></param>
public static bool SendMessage(string key, string value, long dbId = 0)
{
Do(db => db.ListLeftPush(key, value), dbId);
return true;
}
/// <summary>
/// 接收Redis消息
/// </summary>
/// <param name="key"></param>
/// <param name="value"></param>
public static T ReceiveMessages<T>(string key, long dbId = 0)
{
return Do(db =>
{
var value = db.ListRightPop(key);
return ConvertObj<T>(value);
}, dbId);
}
#endregion
#region 帮助方法
/// <summary>
/// 反序列化
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="value"></param>
/// <returns></returns>
private static T ConvertObj<T>(RedisValue value)
{
try
{
if (typeof(T).Name.Equals(typeof(string).Name))
{
return JsonConvert.DeserializeObject<T>($"'{value}'");
}
if (value.HasValue)
{
return JsonConvert.DeserializeObject<T>(value);
}
else
{
return default(T);
}
}
catch (Exception ex)
{
WriteSqlErrorLog(ex);
throw;
}
}
/// <summary>
/// 反序列化(集合)
/// </summary>
/// <typeparam name="T">返回值类型</typeparam>
/// <param name="values">反序列化参数</param>
/// <returns></returns>
private static List<T> ConvetList<T>(RedisValue[] values)
{
List<T> result = new List<T>();
if (values != null)
{
foreach (var item in values)
{
var model = ConvertObj<T>(item);
result.Add(model);
}
}
return result;
}
/// <summary>
/// 序列化
/// </summary>
/// <typeparam name="T">类</typeparam>
/// <param name="value">值</param>
/// <returns></returns>
private static string ConvertJson<T>(T value)
{
try
{
string result = value is string ? value.ToString() : JsonConvert.SerializeObject(value);
return result;
}
catch (Exception ex)
{
WriteSqlErrorLog(ex);
throw;
}
}
#endregion
#region 操作报错写入日志
public static void WriteSqlErrorLog(Exception ex)
{
}
#endregion
}
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