用redis来实现Session保存的一个简单Demo
2024-04-01 17:38:52
现在很多项目都用Redis（RedisSessionStateProvider）来保存Session数据，但是最近遇到一个比较典型的情况，需要把用户数据全部load到redis里面，在加上RedisSessionStateProvider本身的数据，造成很多内存的浪费。首先我们要知道Session会针对用户的数据，比如用户在chrome登录会保存一套信息，用ie登录有保存一套信息，用FF登录还是保存一套信息，那么redis就保存了3套一样的session data数据。
如RedisSessionStateProvider默认会生成*****_Data来保存我们的session数据，******_Internal来记录session过期，这里的*****_2qfxy3ie51m5oneffzr0jkrd****和****_isudg4h01axx3lnd3pao4zcj****其实是用一个用户在2个浏览器上的数据，我们是否可以只保留一份****——Data数据，多分_Internal数据（用与表示到***_Data数据的关联）。
demo如下：
public class BaseController : Controller
{
string cookieName;
public BaseController()
{
cookieName = SessionStateManage.CookieName; HttpCookie cookie = System.Web.HttpContext.Current.Request.Cookies[cookieName];
if (cookie != null)
{
SessionCookieValue = cookie.Value;
if (string.IsNullOrEmpty(SessionCookieValue))
{
UserSession = SessionStateManage.GetUser(SessionCookieValue);
}
} } public void Login(UserInfo info)
{
string sessionID = Guid.NewGuid().ToString();
System.Web.HttpContext.Current.Response.Cookies.Set(new HttpCookie(cookieName, sessionID));
SessionStateManage.SetLogin(sessionID, info);
}
public string SessionCookieValue { set; get; } public UserInfo UserSession { set; get; }
}
public class HomeController : BaseController
{
public ActionResult Index()
{
if (UserSession == null)
{
UserSession = new UserInfo { Email = "gavin@test", Password = "", UserID = "", UserName = "gavin" };
Login(UserSession);
}
return View();
} public ActionResult About()
{
ViewBag.Message = "Your application description page."; return View();
} public ActionResult Contact()
{
ViewBag.Message = "Your contact page."; return View();
}
从当前请求中获取cookie，如果有就加载用户信息，如果没有我们在用户登录的时候除了写Redis还需要给浏览器写上cookie。
public class UserInfo
{
public string UserID { set; get; }
public string UserName { set; get; }
public string Password { set; get; }
public string Email { set; get; }
}
public class SessionStateManage
{
static RedisHelper Redis;
static SessionStateManage()
{
CookieName = ConfigurationManager.AppSettings["cookieName"] ?? "SESSION_ID";
ApplicationName = ConfigurationManager.AppSettings["ApplicationName"] ?? "SESSION"; Redis = new RedisHelper(); Redis.SetSysCustomKey(ApplicationName);
string sessionTimeOutStr = ConfigurationManager.AppSettings["SessionTimeOut"] ?? "";
SessionTimeOut = int.Parse(sessionTimeOutStr);
}
#region Property public static string CookieName { get; private set; } public static string ApplicationName { get; private set; } public static int SessionTimeOut { get; private set; }
#endregion public static void SetLogin(string cookieName, UserInfo user)
{
Redis.StringSet(cookieName, user.UserID);
Redis.KeyExpire(cookieName, new TimeSpan(, SessionTimeOut, )); Redis.HashSet(user.UserID, user);
} public static UserInfo GetUser(string cookinNme)
{
string userID = Redis.StringGet(cookinNme);
return userID == null ? null : Redis.HashGet<UserInfo>(userID);
} }
用户的session过期直接用redis里面key的过期时间。redis操作需要辅助类如下：
/// <summary>
/// ConnectionMultiplexer对象管理帮助类
/// </summary>
public static class RedisConnectionHelp
{
//系统自定义Key前缀
public static readonly string SysCustomKey = ConfigurationManager.AppSettings["redisKey"] ?? ""; //"127.0.0.1:6379,allowadmin=true
private static readonly string RedisConnectionString = ConfigurationManager.ConnectionStrings["RedisExchangeHosts"].ConnectionString; private static readonly object Locker = new object();
private static ConnectionMultiplexer _instance;
private static readonly ConcurrentDictionary<string, ConnectionMultiplexer> ConnectionCache = new ConcurrentDictionary<string, ConnectionMultiplexer>(); /// <summary>
/// 单例获取
/// </summary>
public static ConnectionMultiplexer Instance
{
get
{
if (_instance == null)
{
lock (Locker)
{
if (_instance == null || !_instance.IsConnected)
{
_instance = GetManager();
}
}
}
return _instance;
}
} /// <summary>
/// 缓存获取
/// </summary>
/// <param name="connectionString"></param>
/// <returns></returns>
public static ConnectionMultiplexer GetConnectionMultiplexer(string connectionString)
{
if (!ConnectionCache.ContainsKey(connectionString))
{
ConnectionCache[connectionString] = GetManager(connectionString);
}
return ConnectionCache[connectionString];
} private static ConnectionMultiplexer GetManager(string connectionString = null)
{
connectionString = connectionString ?? RedisConnectionString;
var connect = ConnectionMultiplexer.Connect(connectionString); //注册如下事件
connect.ConnectionFailed += MuxerConnectionFailed;
connect.ConnectionRestored += MuxerConnectionRestored;
connect.ErrorMessage += MuxerErrorMessage;
connect.ConfigurationChanged += MuxerConfigurationChanged;
connect.HashSlotMoved += MuxerHashSlotMoved;
connect.InternalError += MuxerInternalError; return connect;
} #region 事件 /// <summary>
/// 配置更改时
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private static void MuxerConfigurationChanged(object sender, EndPointEventArgs e)
{
Console.WriteLine("Configuration changed: " + e.EndPoint);
} /// <summary>
/// 发生错误时
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private static void MuxerErrorMessage(object sender, RedisErrorEventArgs e)
{
Console.WriteLine("ErrorMessage: " + e.Message);
} /// <summary>
/// 重新建立连接之前的错误
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private static void MuxerConnectionRestored(object sender, ConnectionFailedEventArgs e)
{
Console.WriteLine("ConnectionRestored: " + e.EndPoint);
} /// <summary>
/// 连接失败 ， 如果重新连接成功你将不会收到这个通知
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private static void MuxerConnectionFailed(object sender, ConnectionFailedEventArgs e)
{
Console.WriteLine("重新连接：Endpoint failed: " + e.EndPoint + ", " + e.FailureType + (e.Exception == null ? "" : (", " + e.Exception.Message)));
} /// <summary>
/// 更改集群
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private static void MuxerHashSlotMoved(object sender, HashSlotMovedEventArgs e)
{
Console.WriteLine("HashSlotMoved:NewEndPoint" + e.NewEndPoint + ", OldEndPoint" + e.OldEndPoint);
} /// <summary>
/// redis类库错误
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private static void MuxerInternalError(object sender, InternalErrorEventArgs e)
{
Console.WriteLine("InternalError:Message" + e.Exception.Message);
} #endregion 事件
}
/// <summary>
/// Redis操作
/// </summary>
public class RedisHelper
{
private int DbNum { get; }
private readonly ConnectionMultiplexer _conn;
public string CustomKey; #region 构造函数 public RedisHelper(int dbNum = )
: this(dbNum, null)
{
} public RedisHelper(int dbNum, string readWriteHosts)
{
DbNum = dbNum;
_conn =
string.IsNullOrWhiteSpace(readWriteHosts) ?
RedisConnectionHelp.Instance :
RedisConnectionHelp.GetConnectionMultiplexer(readWriteHosts);
} #endregion 构造函数 #region String #region 同步方法 /// <summary>
/// 保存单个key value
/// </summary>
/// <param name="key">Redis Key</param>
/// <param name="value">保存的值</param>
/// <param name="expiry">过期时间</param>
/// <returns></returns>
public bool StringSet(string key, string value, TimeSpan? expiry = default(TimeSpan?))
{
key = AddSysCustomKey(key);
return Do(db => db.StringSet(key, value, expiry));
} /// <summary>
/// 保存多个key value
/// </summary>
/// <param name="keyValues">键值对</param>
/// <returns></returns>
public bool StringSet(List<KeyValuePair<RedisKey, RedisValue>> keyValues)
{
List<KeyValuePair<RedisKey, RedisValue>> newkeyValues =
keyValues.Select(p => new KeyValuePair<RedisKey, RedisValue>(AddSysCustomKey(p.Key), p.Value)).ToList();
return Do(db => db.StringSet(newkeyValues.ToArray()));
} /// <summary>
/// 保存一个对象
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="key"></param>
/// <param name="obj"></param>
/// <param name="expiry"></param>
/// <returns></returns>
public bool StringSet<T>(string key, T obj, TimeSpan? expiry = default(TimeSpan?))
{
key = AddSysCustomKey(key);
string json = ConvertJson(obj);
return Do(db => db.StringSet(key, json, expiry));
} /// <summary>
/// 获取单个key的值
/// </summary>
/// <param name="key">Redis Key</param>
/// <returns></returns>
public string StringGet(string key)
{
key = AddSysCustomKey(key);
return Do(db => db.StringGet(key));
} /// <summary>
/// 获取多个Key
/// </summary>
/// <param name="listKey">Redis Key集合</param>
/// <returns></returns>
public RedisValue[] StringGet(List<string> listKey)
{
List<string> newKeys = listKey.Select(AddSysCustomKey).ToList();
return Do(db => db.StringGet(ConvertRedisKeys(newKeys)));
} /// <summary>
/// 获取一个key的对象
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="key"></param>
/// <returns></returns>
public T StringGet<T>(string key)
{
key = AddSysCustomKey(key);
return Do(db => ConvertObj<T>(db.StringGet(key)));
} /// <summary>
/// 为数字增长val
/// </summary>
/// <param name="key"></param>
/// <param name="val">可以为负</param>
/// <returns>增长后的值</returns>
public double StringIncrement(string key, double val = )
{
key = AddSysCustomKey(key);
return Do(db => db.StringIncrement(key, val));
} /// <summary>
/// 为数字减少val
/// </summary>
/// <param name="key"></param>
/// <param name="val">可以为负</param>
/// <returns>减少后的值</returns>
public double StringDecrement(string key, double val = )
{
key = AddSysCustomKey(key);
return Do(db => db.StringDecrement(key, val));
} #endregion 同步方法 #region 异步方法 /// <summary>
/// 保存单个key value
/// </summary>
/// <param name="key">Redis Key</param>
/// <param name="value">保存的值</param>
/// <param name="expiry">过期时间</param>
/// <returns></returns>
public async Task<bool> StringSetAsync(string key, string value, TimeSpan? expiry = default(TimeSpan?))
{
key = AddSysCustomKey(key);
return await Do(db => db.StringSetAsync(key, value, expiry));
} /// <summary>
/// 保存多个key value
/// </summary>
/// <param name="keyValues">键值对</param>
/// <returns></returns>
public async Task<bool> StringSetAsync(List<KeyValuePair<RedisKey, RedisValue>> keyValues)
{
List<KeyValuePair<RedisKey, RedisValue>> newkeyValues =
keyValues.Select(p => new KeyValuePair<RedisKey, RedisValue>(AddSysCustomKey(p.Key), p.Value)).ToList();
return await Do(db => db.StringSetAsync(newkeyValues.ToArray()));
} /// <summary>
/// 保存一个对象
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="key"></param>
/// <param name="obj"></param>
/// <param name="expiry"></param>
/// <returns></returns>
public async Task<bool> StringSetAsync<T>(string key, T obj, TimeSpan? expiry = default(TimeSpan?))
{
key = AddSysCustomKey(key);
string json = ConvertJson(obj);
return await Do(db => db.StringSetAsync(key, json, expiry));
} /// <summary>
/// 获取单个key的值
/// </summary>
/// <param name="key">Redis Key</param>
/// <returns></returns>
public async Task<string> StringGetAsync(string key)
{
key = AddSysCustomKey(key);
return await Do(db => db.StringGetAsync(key));
} /// <summary>
/// 获取多个Key
/// </summary>
/// <param name="listKey">Redis Key集合</param>
/// <returns></returns>
public async Task<RedisValue[]> StringGetAsync(List<string> listKey)
{
List<string> newKeys = listKey.Select(AddSysCustomKey).ToList();
return await Do(db => db.StringGetAsync(ConvertRedisKeys(newKeys)));
} /// <summary>
/// 获取一个key的对象
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="key"></param>
/// <returns></returns>
public async Task<T> StringGetAsync<T>(string key)
{
key = AddSysCustomKey(key);
string result = await Do(db => db.StringGetAsync(key));
return ConvertObj<T>(result);
} /// <summary>
/// 为数字增长val
/// </summary>
/// <param name="key"></param>
/// <param name="val">可以为负</param>
/// <returns>增长后的值</returns>
public async Task<double> StringIncrementAsync(string key, double val = )
{
key = AddSysCustomKey(key);
return await Do(db => db.StringIncrementAsync(key, val));
} /// <summary>
/// 为数字减少val
/// </summary>
/// <param name="key"></param>
/// <param name="val">可以为负</param>
/// <returns>减少后的值</returns>
public async Task<double> StringDecrementAsync(string key, double val = )
{
key = AddSysCustomKey(key);
return await Do(db => db.StringDecrementAsync(key, val));
} #endregion 异步方法 #endregion String #region Hash #region 同步方法 /// <summary>
/// 判断某个数据是否已经被缓存
/// </summary>
/// <param name="key"></param>
/// <param name="dataKey"></param>
/// <returns></returns>
public bool HashExists(string key, string dataKey)
{
key = AddSysCustomKey(key);
return Do(db => db.HashExists(key, dataKey));
} /// <summary>
/// 存储数据到hash表
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="key"></param>
/// <param name="dataKey"></param>
/// <param name="t"></param>
/// <returns></returns>
public bool HashSet<T>(string key, string dataKey, T t)
{
key = AddSysCustomKey(key);
return Do(db =>
{
string json = ConvertJson(t);
return db.HashSet(key, dataKey, json);
});
} public bool HashSet<T>(string key, T t)
{
key = AddSysCustomKey(key);
return Do(db =>
{
var val = ToHash<T>(t);
db.HashSet(key, val);
return true;
});
}
/// <summary>
/// 移除hash中的某值
/// </summary>
/// <param name="key"></param>
/// <param name="dataKey"></param>
/// <returns></returns>
public bool HashDelete(string key, string dataKey)
{
key = AddSysCustomKey(key);
return Do(db => db.HashDelete(key, dataKey));
} /// <summary>
/// 移除hash中的多个值
/// </summary>
/// <param name="key"></param>
/// <param name="dataKeys"></param>
/// <returns></returns>
public long HashDelete(string key, List<RedisValue> dataKeys)
{
key = AddSysCustomKey(key);
//List<RedisValue> dataKeys1 = new List<RedisValue>() {"1","2"};
return Do(db => db.HashDelete(key, dataKeys.ToArray()));
} /// <summary>
/// 从hash表获取数据
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="key"></param>
/// <param name="dataKey"></param>
/// <returns></returns>
public T HashGet<T>(string key, string dataKey)
{
key = AddSysCustomKey(key);
return Do(db =>
{
string value = db.HashGet(key, dataKey);
return ConvertObj<T>(value);
});
} public T HashGet<T>(string key)
{
key = AddSysCustomKey(key);
return Do(db =>
{
var value = db.HashGetAll(key);
return ToEntity<T>(value);
});
}
/// <summary>
/// 为数字增长val
/// </summary>
/// <param name="key"></param>
/// <param name="dataKey"></param>
/// <param name="val">可以为负</param>
/// <returns>增长后的值</returns>
public double HashIncrement(string key, string dataKey, double val = )
{
key = AddSysCustomKey(key);
return Do(db => db.HashIncrement(key, dataKey, val));
} /// <summary>
/// 为数字减少val
/// </summary>
/// <param name="key"></param>
/// <param name="dataKey"></param>
/// <param name="val">可以为负</param>
/// <returns>减少后的值</returns>
public double HashDecrement(string key, string dataKey, double val = )
{
key = AddSysCustomKey(key);
return Do(db => db.HashDecrement(key, dataKey, val));
} /// <summary>
/// 获取hashkey所有Redis key
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="key"></param>
/// <returns></returns>
public List<T> HashKeys<T>(string key)
{
key = AddSysCustomKey(key);
return Do(db =>
{
RedisValue[] values = db.HashKeys(key);
return ConvetList<T>(values);
});
} #endregion 同步方法 #region 异步方法 /// <summary>
/// 判断某个数据是否已经被缓存
/// </summary>
/// <param name="key"></param>
/// <param name="dataKey"></param>
/// <returns></returns>
public async Task<bool> HashExistsAsync(string key, string dataKey)
{
key = AddSysCustomKey(key);
return await Do(db => db.HashExistsAsync(key, dataKey));
} /// <summary>
/// 存储数据到hash表
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="key"></param>
/// <param name="dataKey"></param>
/// <param name="t"></param>
/// <returns></returns>
public async Task<bool> HashSetAsync<T>(string key, string dataKey, T t)
{
key = AddSysCustomKey(key);
return await Do(db =>
{
string json = ConvertJson(t);
return db.HashSetAsync(key, dataKey, json);
});
} /// <summary>
/// 移除hash中的某值
/// </summary>
/// <param name="key"></param>
/// <param name="dataKey"></param>
/// <returns></returns>
public async Task<bool> HashDeleteAsync(string key, string dataKey)
{
key = AddSysCustomKey(key);
return await Do(db => db.HashDeleteAsync(key, dataKey));
} /// <summary>
/// 移除hash中的多个值
/// </summary>
/// <param name="key"></param>
/// <param name="dataKeys"></param>
/// <returns></returns>
public async Task<long> HashDeleteAsync(string key, List<RedisValue> dataKeys)
{
key = AddSysCustomKey(key);
//List<RedisValue> dataKeys1 = new List<RedisValue>() {"1","2"};
return await Do(db => db.HashDeleteAsync(key, dataKeys.ToArray()));
} /// <summary>
/// 从hash表获取数据
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="key"></param>
/// <param name="dataKey"></param>
/// <returns></returns>
public async Task<T> HashGeAsync<T>(string key, string dataKey)
{
key = AddSysCustomKey(key);
string value = await Do(db => db.HashGetAsync(key, dataKey));
return ConvertObj<T>(value);
} /// <summary>
/// 为数字增长val
/// </summary>
/// <param name="key"></param>
/// <param name="dataKey"></param>
/// <param name="val">可以为负</param>
/// <returns>增长后的值</returns>
public async Task<double> HashIncrementAsync(string key, string dataKey, double val = )
{
key = AddSysCustomKey(key);
return await Do(db => db.HashIncrementAsync(key, dataKey, val));
} /// <summary>
/// 为数字减少val
/// </summary>
/// <param name="key"></param>
/// <param name="dataKey"></param>
/// <param name="val">可以为负</param>
/// <returns>减少后的值</returns>
public async Task<double> HashDecrementAsync(string key, string dataKey, double val = )
{
key = AddSysCustomKey(key);
return await Do(db => db.HashDecrementAsync(key, dataKey, val));
} /// <summary>
/// 获取hashkey所有Redis key
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="key"></param>
/// <returns></returns>
public async Task<List<T>> HashKeysAsync<T>(string key)
{
key = AddSysCustomKey(key);
RedisValue[] values = await Do(db => db.HashKeysAsync(key));
return ConvetList<T>(values);
} #endregion 异步方法 #endregion Hash #region List #region 同步方法 /// <summary>
/// 移除指定ListId的内部List的值
/// </summary>
/// <param name="key"></param>
/// <param name="value"></param>
public void ListRemove<T>(string key, T value)
{
key = AddSysCustomKey(key);
Do(db => db.ListRemove(key, ConvertJson(value)));
} /// <summary>
/// 获取指定key的List
/// </summary>
/// <param name="key"></param>
/// <returns></returns>
public List<T> ListRange<T>(string key)
{
key = AddSysCustomKey(key);
return Do(redis =>
{
var values = redis.ListRange(key);
return ConvetList<T>(values);
});
} /// <summary>
/// 入队
/// </summary>
/// <param name="key"></param>
/// <param name="value"></param>
public void ListRightPush<T>(string key, T value)
{
key = AddSysCustomKey(key);
Do(db => db.ListRightPush(key, ConvertJson(value)));
} /// <summary>
/// 出队
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="key"></param>
/// <returns></returns>
public T ListRightPop<T>(string key)
{
key = AddSysCustomKey(key);
return Do(db =>
{
var value = db.ListRightPop(key);
return ConvertObj<T>(value);
});
} /// <summary>
/// 入栈
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="key"></param>
/// <param name="value"></param>
public void ListLeftPush<T>(string key, T value)
{
key = AddSysCustomKey(key);
Do(db => db.ListLeftPush(key, ConvertJson(value)));
} /// <summary>
/// 出栈
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="key"></param>
/// <returns></returns>
public T ListLeftPop<T>(string key)
{
key = AddSysCustomKey(key);
return Do(db =>
{
var value = db.ListLeftPop(key);
return ConvertObj<T>(value);
});
} /// <summary>
/// 获取集合中的数量
/// </summary>
/// <param name="key"></param>
/// <returns></returns>
public long ListLength(string key)
{
key = AddSysCustomKey(key);
return Do(redis => redis.ListLength(key));
} #endregion 同步方法 #region 异步方法 /// <summary>
/// 移除指定ListId的内部List的值
/// </summary>
/// <param name="key"></param>
/// <param name="value"></param>
public async Task<long> ListRemoveAsync<T>(string key, T value)
{
key = AddSysCustomKey(key);
return await Do(db => db.ListRemoveAsync(key, ConvertJson(value)));
} /// <summary>
/// 获取指定key的List
/// </summary>
/// <param name="key"></param>
/// <returns></returns>
public async Task<List<T>> ListRangeAsync<T>(string key)
{
key = AddSysCustomKey(key);
var values = await Do(redis => redis.ListRangeAsync(key));
return ConvetList<T>(values);
} /// <summary>
/// 入队
/// </summary>
/// <param name="key"></param>
/// <param name="value"></param>
public async Task<long> ListRightPushAsync<T>(string key, T value)
{
key = AddSysCustomKey(key);
return await Do(db => db.ListRightPushAsync(key, ConvertJson(value)));
} /// <summary>
/// 出队
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="key"></param>
/// <returns></returns>
public async Task<T> ListRightPopAsync<T>(string key)
{
key = AddSysCustomKey(key);
var value = await Do(db => db.ListRightPopAsync(key));
return ConvertObj<T>(value);
} /// <summary>
/// 入栈
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="key"></param>
/// <param name="value"></param>
public async Task<long> ListLeftPushAsync<T>(string key, T value)
{
key = AddSysCustomKey(key);
return await Do(db => db.ListLeftPushAsync(key, ConvertJson(value)));
} /// <summary>
/// 出栈
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="key"></param>
/// <returns></returns>
public async Task<T> ListLeftPopAsync<T>(string key)
{
key = AddSysCustomKey(key);
var value = await Do(db => db.ListLeftPopAsync(key));
return ConvertObj<T>(value);
} /// <summary>
/// 获取集合中的数量
/// </summary>
/// <param name="key"></param>
/// <returns></returns>
public async Task<long> ListLengthAsync(string key)
{
key = AddSysCustomKey(key);
return await Do(redis => redis.ListLengthAsync(key));
} #endregion 异步方法 #endregion List #region SortedSet 有序集合 #region 同步方法 /// <summary>
/// 添加
/// </summary>
/// <param name="key"></param>
/// <param name="value"></param>
/// <param name="score"></param>
public bool SortedSetAdd<T>(string key, T value, double score)
{
key = AddSysCustomKey(key);
return Do(redis => redis.SortedSetAdd(key, ConvertJson<T>(value), score));
} /// <summary>
/// 删除
/// </summary>
/// <param name="key"></param>
/// <param name="value"></param>
public bool SortedSetRemove<T>(string key, T value)
{
key = AddSysCustomKey(key);
return Do(redis => redis.SortedSetRemove(key, ConvertJson(value)));
} /// <summary>
/// 获取全部
/// </summary>
/// <param name="key"></param>
/// <returns></returns>
public List<T> SortedSetRangeByRank<T>(string key)
{
key = AddSysCustomKey(key);
return Do(redis =>
{
var values = redis.SortedSetRangeByRank(key);
return ConvetList<T>(values);
});
} /// <summary>
/// 获取集合中的数量
/// </summary>
/// <param name="key"></param>
/// <returns></returns>
public long SortedSetLength(string key)
{
key = AddSysCustomKey(key);
return Do(redis => redis.SortedSetLength(key));
} #endregion 同步方法 #region 异步方法 /// <summary>
/// 添加
/// </summary>
/// <param name="key"></param>
/// <param name="value"></param>
/// <param name="score"></param>
public async Task<bool> SortedSetAddAsync<T>(string key, T value, double score)
{
key = AddSysCustomKey(key);
return await Do(redis => redis.SortedSetAddAsync(key, ConvertJson<T>(value), score));
} /// <summary>
/// 删除
/// </summary>
/// <param name="key"></param>
/// <param name="value"></param>
public async Task<bool> SortedSetRemoveAsync<T>(string key, T value)
{
key = AddSysCustomKey(key);
return await Do(redis => redis.SortedSetRemoveAsync(key, ConvertJson(value)));
} /// <summary>
/// 获取全部
/// </summary>
/// <param name="key"></param>
/// <returns></returns>
public async Task<List<T>> SortedSetRangeByRankAsync<T>(string key)
{
key = AddSysCustomKey(key);
var values = await Do(redis => redis.SortedSetRangeByRankAsync(key));
return ConvetList<T>(values);
} /// <summary>
/// 获取集合中的数量
/// </summary>
/// <param name="key"></param>
/// <returns></returns>
public async Task<long> SortedSetLengthAsync(string key)
{
key = AddSysCustomKey(key);
return await Do(redis => redis.SortedSetLengthAsync(key));
} #endregion 异步方法 #endregion SortedSet 有序集合 #region key /// <summary>
/// 删除单个key
/// </summary>
/// <param name="key">redis key</param>
/// <returns>是否删除成功</returns>
public bool KeyDelete(string key)
{
key = AddSysCustomKey(key);
return Do(db => db.KeyDelete(key));
} /// <summary>
/// 删除多个key
/// </summary>
/// <param name="keys">rediskey</param>
/// <returns>成功删除的个数</returns>
public long KeyDelete(List<string> keys)
{
List<string> newKeys = keys.Select(AddSysCustomKey).ToList();
return Do(db => db.KeyDelete(ConvertRedisKeys(newKeys)));
} /// <summary>
/// 判断key是否存储
/// </summary>
/// <param name="key">redis key</param>
/// <returns></returns>
public bool KeyExists(string key)
{
key = AddSysCustomKey(key);
return Do(db => db.KeyExists(key));
} /// <summary>
/// 重新命名key
/// </summary>
/// <param name="key">就的redis key</param>
/// <param name="newKey">新的redis key</param>
/// <returns></returns>
public bool KeyRename(string key, string newKey)
{
key = AddSysCustomKey(key);
return Do(db => db.KeyRename(key, newKey));
} /// <summary>
/// 设置Key的时间
/// </summary>
/// <param name="key">redis key</param>
/// <param name="expiry"></param>
/// <returns></returns>
public bool KeyExpire(string key, TimeSpan? expiry = default(TimeSpan?))
{
key = AddSysCustomKey(key);
return Do(db => db.KeyExpire(key, expiry));
} #endregion key #region 发布订阅 /// <summary>
/// Redis发布订阅 订阅
/// </summary>
/// <param name="subChannel"></param>
/// <param name="handler"></param>
public void Subscribe(string subChannel, Action<RedisChannel, RedisValue> handler = null)
{
ISubscriber sub = _conn.GetSubscriber();
sub.Subscribe(subChannel, (channel, message) =>
{
if (handler == null)
{
Console.WriteLine(subChannel + " 订阅收到消息：" + message);
}
else
{
handler(channel, message);
}
});
} /// <summary>
/// Redis发布订阅 发布
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="channel"></param>
/// <param name="msg"></param>
/// <returns></returns>
public long Publish<T>(string channel, T msg)
{
ISubscriber sub = _conn.GetSubscriber();
return sub.Publish(channel, ConvertJson(msg));
} /// <summary>
/// Redis发布订阅 取消订阅
/// </summary>
/// <param name="channel"></param>
public void Unsubscribe(string channel)
{
ISubscriber sub = _conn.GetSubscriber();
sub.Unsubscribe(channel);
} /// <summary>
/// Redis发布订阅 取消全部订阅
/// </summary>
public void UnsubscribeAll()
{
ISubscriber sub = _conn.GetSubscriber();
sub.UnsubscribeAll();
} #endregion 发布订阅 #region 其他 public ITransaction CreateTransaction()
{
return GetDatabase().CreateTransaction();
} public IDatabase GetDatabase()
{
return _conn.GetDatabase(DbNum);
} public IServer GetServer(string hostAndPort)
{
return _conn.GetServer(hostAndPort);
} /// <summary>
/// 设置前缀
/// </summary>
/// <param name="customKey"></param>
public void SetSysCustomKey(string customKey)
{
CustomKey = customKey;
} #endregion 其他 #region 辅助方法 private string AddSysCustomKey(string oldKey)
{
var prefixKey = CustomKey ?? RedisConnectionHelp.SysCustomKey;
return prefixKey + oldKey;
} private T Do<T>(Func<IDatabase, T> func)
{
var database = _conn.GetDatabase(DbNum);
return func(database);
} private string ConvertJson<T>(T value)
{
string result = value is string ? value.ToString() : JsonConvert.SerializeObject(value);
return result;
} private T ConvertObj<T>(RedisValue value)
{
return JsonConvert.DeserializeObject<T>(value);
} private List<T> ConvetList<T>(RedisValue[] values)
{
List<T> result = new List<T>();
foreach (var item in values)
{
var model = ConvertObj<T>(item);
result.Add(model);
}
return result;
} private RedisKey[] ConvertRedisKeys(List<string> redisKeys)
{
return redisKeys.Select(redisKey => (RedisKey)redisKey).ToArray();
}
static HashEntry[] ToHash<T>(T obj, bool isIncludNull = false)
{
PropertyInfo[] properties = obj.GetType().GetProperties(); return isIncludNull
? properties.Select(x =>
{
var tempValue = x.GetValue(obj);
return new HashEntry(x.Name, tempValue == null ? string.Empty : tempValue.ToString());
}).ToArray()
: properties.Where(x => x.GetValue(obj) != null).Select(x => new HashEntry(x.Name, x.GetValue(obj).ToString())).ToArray();
} static T ToEntity<T>(HashEntry[] hashEntries)
{
Type t = typeof(T);
PropertyInfo[] properties = t.GetProperties();
var obj = Activator.CreateInstance(typeof(T));
foreach (var property in properties)
{
HashEntry entry = hashEntries.FirstOrDefault(g => g.Name.ToString().Equals(property.Name));
if (entry.Equals(new HashEntry())) continue; object value = null;
if (!property.PropertyType.IsGenericType)
{
value = Convert.ChangeType(entry.Value.ToString(), property.PropertyType);
}
else
{
Type genericTypeDefinition = property.PropertyType.GetGenericTypeDefinition();
if (genericTypeDefinition == typeof(Nullable<>))
{
if (entry.Value.HasValue)
{
value = Convert.ChangeType(entry.Value.ToString(), Nullable.GetUnderlyingType(property.PropertyType));
}
}
} property.SetValue(obj, value);
}
return (T)obj;
} #endregion 辅助方法
}
增加的配置文件
<connectionStrings>
<add name="RedisExchangeHosts" connectionString="127.0.0.1:6379,abortConnect=false,connectRetry=3,connectTimeout=3000,defaultDatabase=0,syncTimeout=3000,version=3.2.1,responseTimeout=3000" />
</connectionStrings>
<appSettings> <add key="cookieName" value="gavintest" />
<add key="ApplicationName" value="CustStateDemo" />
<add key="SessionTimeOut" value="" />
</appSettings>
运行效果:
CustStateDemo1是我真正的数据，CustStateDemo451c3163-7586-494d-b331-89bae1045ba0和其他2个一样 数据都是指向CustStateDemo1的数据。
最新文章
- linux下系统编程C环境搭建
- SQLBulkCopy使用实例--读取Excel写入数据库/将 Excel 文件转成 DataTable
- 【Tyvj 1060】【NOIP 2005】等价表达式
- 创建URL为空的解决办法
- ubuntu定时执行脚本(crond)
- Zookeeper实战之单机模式
- 国外it网站收集
- 自学Python二 Python中的屠龙刀（续）
- Makefile与shell脚本的区别
- System.AccessViolationException: 尝试读取或写入受保护的内存 解决办法
- JavaEE Tutorials (25) - 使用Java EE拦截器
- 设置Ubuntu 10.10版本的软件源
- bunoj 34990（hash）
- gulp package.json
- PMP测试实践- 内附PMBOK中字与备考资料
- RCNN 目标识别基本原理
- SQL Server存储过程输入参数使用表值
- lua连接redis集群
- sql_auoload_regiester() 解释（转载）
- html基础知识汇总（二）之Emmet语法
热门文章
- JavaScript对象复制（一）(转载)
- 嵌入式linux系统中，lsusb出现unable to initialize libusb: -99 解决办法 【转】
- UART中的硬件流控RTS与CTS DTR DSR DTE设备和DCE设备【转】
- DataTables 1.10.x与1.9.x参数名对照表
- 一步步实现windows版ijkplayer系列文章之四——windows下编译ijkplyer版ffmpeg
- centos6 -> zabbix2.2升级3.0.5教程
- angularjs入门（二）
- 集成Struts2+Spring+Hibernate_两种方案
- nagios系列(五)之nagios图形显示的配置及自定义插件检测密码是否修改详解
- 《Oracle 11g 入门到精通.明日科技.pdf》学习笔记