現在很多項目都用Redis（RedisSessionStateProvider）來保存Session數據，但是最近遇到一個比較典型的情況，需要把用戶數據全部load到redis里面，在加上RedisSessionStateProvider本身的數據，造成很多內存的浪費。首先我們要知道Session會針對用戶的數據，比如用戶在chrome登錄會保存一套信息，用ie登錄有保存一套信息，用FF登錄還是保存一套信息，那么redis就保存了3套一樣的session data數據。
如RedisSessionStateProvider默認會生成*****_Data來保存我們的session數據，******_Internal來記錄session過期，這里的*****_2qfxy3ie51m5oneffzr0jkrd****和****_isudg4h01axx3lnd3pao4zcj****其實是用一個用戶在2個瀏覽器上的數據，我們是否可以只保留一份****——Data數據，多分_Internal數據（用與表示到***_Data數據的關聯）。
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 = "123", UserID = "1", 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(); }
從當前請求中獲取cookie，如果有就加載用戶信息，如果沒有我們在用戶登錄的時候除了寫Redis還需要給瀏覽器寫上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(1); Redis.SetSysCustomKey(ApplicationName); string sessionTimeOutStr = ConfigurationManager.AppSettings["SessionTimeOut"] ?? "20"; 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(0, SessionTimeOut, 0)); Redis.HashSet(user.UserID, user); } public static UserInfo GetUser(string cookinNme) { string userID = Redis.StringGet(cookinNme); return userID == null ? null : Redis.HashGet<UserInfo>(userID); } }
用戶的session過期直接用redis里面key的過期時間。redis操作需要輔助類如下：
/// <summary> /// ConnectionMultiplexer對象管理幫助類 /// </summary> public static class RedisConnectionHelp { //系統自定義Key前綴 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> /// 單例獲取 /// </summary> public static ConnectionMultiplexer Instance { get { if (_instance == null) { lock (Locker) { if (_instance == null || !_instance.IsConnected) { _instance = GetManager(); } } } return _instance; } } /// <summary> /// 緩存獲取 /// </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); //注冊如下事件 connect.ConnectionFailed += MuxerConnectionFailed; connect.ConnectionRestored += MuxerConnectionRestored; connect.ErrorMessage += MuxerErrorMessage; connect.ConfigurationChanged += MuxerConfigurationChanged; connect.HashSlotMoved += MuxerHashSlotMoved; connect.InternalError += MuxerInternalError; return connect; } #region 事件 /// <summary> /// 配置更改時 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private static void MuxerConfigurationChanged(object sender, EndPointEventArgs e) { Console.WriteLine("Configuration changed: " + e.EndPoint); } /// <summary> /// 發生錯誤時 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private static void MuxerErrorMessage(object sender, RedisErrorEventArgs e) { Console.WriteLine("ErrorMessage: " + e.Message); } /// <summary> /// 重新建立連接之前的錯誤 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private static void MuxerConnectionRestored(object sender, ConnectionFailedEventArgs e) { Console.WriteLine("ConnectionRestored: " + e.EndPoint); } /// <summary> /// 連接失敗 ， 如果重新連接成功你將不會收到這個通知 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private static void MuxerConnectionFailed(object sender, ConnectionFailedEventArgs e) { Console.WriteLine("重新連接：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類庫錯誤 /// </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 構造函數 public RedisHelper(int dbNum = 0) : this(dbNum, null) { } public RedisHelper(int dbNum, string readWriteHosts) { DbNum = dbNum; _conn = string.IsNullOrWhiteSpace(readWriteHosts) ? RedisConnectionHelp.Instance : RedisConnectionHelp.GetConnectionMultiplexer(readWriteHosts); } #endregion 構造函數 #region String #region 同步方法 /// <summary> /// 保存單個key value /// </summary> /// <param name="key">Redis Key</param> /// <param name="value">保存的值</param> /// <param name="expiry">過期時間</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> /// 保存多個key value /// </summary> /// <param name="keyValues">鍵值對</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> /// 保存一個對象 /// </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> /// 獲取單個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> /// 獲取多個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> /// 獲取一個key的對象 /// </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> /// 為數字增長val /// </summary> /// <param name="key"></param> /// <param name="val">可以為負</param> /// <returns>增長后的值</returns> public double StringIncrement(string key, double val = 1) { key = AddSysCustomKey(key); return Do(db => db.StringIncrement(key, val)); } /// <summary> /// 為數字減少val /// </summary> /// <param name="key"></param> /// <param name="val">可以為負</param> /// <returns>減少后的值</returns> public double StringDecrement(string key, double val = 1) { key = AddSysCustomKey(key); return Do(db => db.StringDecrement(key, val)); } #endregion 同步方法 #region 異步方法 /// <summary> /// 保存單個key value /// </summary> /// <param name="key">Redis Key</param> /// <param name="value">保存的值</param> /// <param name="expiry">過期時間</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> /// 保存多個key value /// </summary> /// <param name="keyValues">鍵值對</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> /// 保存一個對象 /// </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> /// 獲取單個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> /// 獲取多個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> /// 獲取一個key的對象 /// </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> /// 為數字增長val /// </summary> /// <param name="key"></param> /// <param name="val">可以為負</param> /// <returns>增長后的值</returns> public async Task<double> StringIncrementAsync(string key, double val = 1) { key = AddSysCustomKey(key); return await Do(db => db.StringIncrementAsync(key, val)); } /// <summary> /// 為數字減少val /// </summary> /// <param name="key"></param> /// <param name="val">可以為負</param> /// <returns>減少后的值</returns> public async Task<double> StringDecrementAsync(string key, double val = 1) { key = AddSysCustomKey(key); return await Do(db => db.StringDecrementAsync(key, val)); } #endregion 異步方法 #endregion String #region Hash #region 同步方法 /// <summary> /// 判斷某個數據是否已經被緩存 /// </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> /// 存儲數據到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中的多個值 /// </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> /// 從hash表獲取數據 /// </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> /// 為數字增長val /// </summary> /// <param name="key"></param> /// <param name="dataKey"></param> /// <param name="val">可以為負</param> /// <returns>增長后的值</returns> public double HashIncrement(string key, string dataKey, double val = 1) { key = AddSysCustomKey(key); return Do(db => db.HashIncrement(key, dataKey, val)); } /// <summary> /// 為數字減少val /// </summary> /// <param name="key"></param> /// <param name="dataKey"></param> /// <param name="val">可以為負</param> /// <returns>減少后的值</returns> public double HashDecrement(string key, string dataKey, double val = 1) { key = AddSysCustomKey(key); return Do(db => db.HashDecrement(key, dataKey, val)); } /// <summary> /// 獲取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 異步方法 /// <summary> /// 判斷某個數據是否已經被緩存 /// </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> /// 存儲數據到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中的多個值 /// </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> /// 從hash表獲取數據 /// </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> /// 為數字增長val /// </summary> /// <param name="key"></param> /// <param name="dataKey"></param> /// <param name="val">可以為負</param> /// <returns>增長后的值</returns> public async Task<double> HashIncrementAsync(string key, string dataKey, double val = 1) { key = AddSysCustomKey(key); return await Do(db => db.HashIncrementAsync(key, dataKey, val)); } /// <summary> /// 為數字減少val /// </summary> /// <param name="key"></param> /// <param name="dataKey"></param> /// <param name="val">可以為負</param> /// <returns>減少后的值</returns> public async Task<double> HashDecrementAsync(string key, string dataKey, double val = 1) { key = AddSysCustomKey(key); return await Do(db => db.HashDecrementAsync(key, dataKey, val)); } /// <summary> /// 獲取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 異步方法 #endregion Hash #region List #region 同步方法 /// <summary> /// 移除指定ListId的內部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> /// 獲取指定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> /// 入隊 /// </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> /// 出隊 /// </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> /// 入棧 /// </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> /// 出棧 /// </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> /// 獲取集合中的數量 /// </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 異步方法 /// <summary> /// 移除指定ListId的內部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> /// 獲取指定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> /// 入隊 /// </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> /// 出隊 /// </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> /// 入棧 /// </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> /// 出棧 /// </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> /// 獲取集合中的數量 /// </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 異步方法 #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> /// 刪除 /// </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> /// 獲取全部 /// </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> /// 獲取集合中的數量 /// </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 異步方法 /// <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> /// 刪除 /// </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> /// 獲取全部 /// </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> /// 獲取集合中的數量 /// </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 異步方法 #endregion SortedSet 有序集合 #region key /// <summary> /// 刪除單個key /// </summary> /// <param name="key">redis key</param> /// <returns>是否刪除成功</returns> public bool KeyDelete(string key) { key = AddSysCustomKey(key); return Do(db => db.KeyDelete(key)); } /// <summary> /// 刪除多個key /// </summary> /// <param name="keys">rediskey</param> /// <returns>成功刪除的個數</returns> public long KeyDelete(List<string> keys) { List<string> newKeys = keys.Select(AddSysCustomKey).ToList(); return Do(db => db.KeyDelete(ConvertRedisKeys(newKeys))); } /// <summary> /// 判斷key是否存儲 /// </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> /// 設置Key的時間 /// </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 發布訂閱 /// <summary> /// Redis發布訂閱 訂閱 /// </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 + " 訂閱收到消息：" + message); } else { handler(channel, message); } }); } /// <summary> /// Redis發布訂閱 發布 /// </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發布訂閱 取消訂閱 /// </summary> /// <param name="channel"></param> public void Unsubscribe(string channel) { ISubscriber sub = _conn.GetSubscriber(); sub.Unsubscribe(channel); } /// <summary> /// Redis發布訂閱 取消全部訂閱 /// </summary> public void UnsubscribeAll() { ISubscriber sub = _conn.GetSubscriber(); sub.UnsubscribeAll(); } #endregion 發布訂閱 #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> /// 設置前綴 /// </summary> /// <param name="customKey"></param> public void SetSysCustomKey(string customKey) { CustomKey = customKey; } #endregion 其他 #region 輔助方法 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 輔助方法 }
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="20" />
</appSettings>
運行效果:
CustStateDemo1是我真正的數據，CustStateDemo451c3163-7586-494d-b331-89bae1045ba0和其他2個一樣 數據都是指向CustStateDemo1的數據。