redis是否代替session

?<appsettings> ?????<!--每臺(tái)Redis之間用,分割.第一個(gè)必須為主機(jī)--> ????<add></add> ?</appsettings>

static?Managers() ????????{ ????????????string?sessionRedis=?ConfigurationManager.AppSettings["SessionRedis"]; ????????????string?timeOut?=?ConfigurationManager.AppSettings["SessionRedisTimeOut"]; ????????????if?(string.IsNullOrEmpty(sessionRedis)) ????????????{ ????????????????throw?new?Exception("web.config?缺少配置SessionRedis,每臺(tái)Redis之間用,分割.第一個(gè)必須為主機(jī)"); ????????????} ????????????if?(string.IsNullOrEmpty(timeOut)==false) ????????????{ ????????????????TimeOut?=?Convert.ToInt32(timeOut); ????????????} ????????????var?host?=?sessionRedis.Split(char.Parse(",")); ????????????var?writeHost?=?new?string[]?{?host[0]?}; ????????????var?readHosts?=?host.Skip(1).ToArray(); ????????????ClientManagers?=?new?PooledRedisClientManager(writeHost,?readHosts,?new?RedisClientManagerConfig ????????????{ ????????????????MaxWritePoolSize?=?writeReadCount,//“寫”鏈接池鏈接數(shù) ????????????????MaxReadPoolSize?=?writeReadCount,//“讀”鏈接池鏈接數(shù) ????????????????AutoStart?=?true ????????????}); ????????}

?///?<summary> ????????///?寫入 ????????///?</summary> ????????///?<typeparam></typeparam> ????????///?<param> ????????///?<returns></returns> ????????public?F?TryRedisWrite<f>(Func<iredisclient>?doWrite) ????????{ ????????????PooledRedisClientManager?prcm?=?new?Managers().GetClientManagers(); ????????????IRedisClient?client?=?null; ????????????try ????????????{ ????????????????using?(client?=?prcm.GetClient()) ????????????????{ ????????????????????return?doWrite(client); ????????????????} ????????????} ????????????catch?(RedisException) ????????????{ ????????????????throw?new?Exception("Redis寫入異常.Host:"?+?client.Host?+?",Port:"?+?client.Port); ????????????} ????????????finally ????????????{ ????????????????if?(client?!=?null) ????????????????{ ????????????????????client.Dispose(); ????????????????} ????????????} ????????}</iredisclient></f>

????????///?<summary> ????????///?以Key/Value的形式存儲(chǔ)對(duì)象到緩存中 ????????///?</summary> ????????///?<typeparam>對(duì)象類別</typeparam> ????????///?<param>要寫入的集合 ????????public?void?KSet(Dictionary<string>?value) ????????{ ????????????Func<iredisclient>?fun?=?(IRedisClient?client)?=&gt; ????????????{ ????????????????client.SetAll<t>(value); ????????????????return?true; ????????????}; ????????????TryRedisWrite(fun); ????????}</t></iredisclient></string>

????///?<summary> ????///?用戶狀態(tài)管理 ????///?</summary> ????public?class?Session ????{ ????????///?<summary> ????????///?初始化 ????????///?</summary> ????????///?<param> ????????public?Session(HttpContextBase?_context) ????????{ ????????????var?context?=?_context; ????????????var?cookie?=?context.Request.Cookies.Get(SessionName); ????????????if?(cookie?==?null?||?string.IsNullOrEmpty(cookie.Value)) ????????????{ ????????????????SessionId?=?NewGuid(); ????????????????context.Response.Cookies.Add(new?HttpCookie(SessionName,?SessionId)); ????????????????context.Request.Cookies.Add(new?HttpCookie(SessionName,?SessionId)); ????????????} ????????????else ????????????{ ????????????????SessionId?=?cookie.Value; ????????????} ????????} ????}

????????///?<summary> ????????///?獲取當(dāng)前用戶信息 ????????///?</summary> ????????///?<typeparam></typeparam> ????????///?<returns></returns> ????????public?object?Get<t>()?where?T:class,new() ????????{ ????????????return?new?RedisClient<t>().KGet(SessionId); ????????} ????????///?<summary> ????????///?用戶是否在線 ????????///?</summary> ????????///?<returns></returns> ????????public?bool?IsLogin() ????????{ ????????????return?new?RedisClient<object>().KIsExist(SessionId); ????????} ????????///?<summary> ????????///?登錄 ????????///?</summary> ????????///?<typeparam></typeparam> ????????///?<param> ????????public?void?Login<t>(T?obj)?where?T?:?class,new() ????????{ ????????????new?RedisClient<t>().KSet(SessionId,?obj,?new?TimeSpan(0,?Managers.TimeOut,?0)); ????????}</t></t></object></t></t>

??????///?<summary> ????????///?延期 ????????///?</summary> ????????///?<param> ????????///?<param> ????????public?void?KSetEntryIn(string?key,?TimeSpan?expiresTime) ????????{ ????????????Func<iredisclient>?fun?=?(IRedisClient?client)?=&gt; ????????????{ ????????????????client.ExpireEntryIn(key,?expiresTime); ????????????????return?false; ????????????}; ????????????TryRedisWrite(fun); ????????}</iredisclient>

///?<summary> ///?續(xù)期 ///?</summary> public?void?Postpone() { new?RedisClient<object>().KSetEntryIn(SessionId,?new?TimeSpan(0,?Managers.TimeOut,?0)); }</object>

namespace?Test { ????public?class?SessionFilterAttribute?:?ActionFilterAttribute ????{ ????????///?<summary> ????????///?每次請(qǐng)求都續(xù)期 ????????///?</summary> ????????///?<param> ????????public?override?void?OnActionExecuting(ActionExecutingContext?filterContext) ????????{ ????????????new?Session(filterContext.HttpContext).Postpone(); ????????} ????} }

public?static?void?RegisterGlobalFilters(GlobalFilterCollection?filters) ????????{ ????????????filters.Add(new?SessionFilterAttribute()); ????????} ????????protected?void?Application_Start() ????????{ ????????????RegisterGlobalFilters(GlobalFilters.Filters); ????????}

public?static?class?ExtSessions {public?static?Session?SessionExt(this?Controller?controller) ????{ ????????return?new?Session(controller.HttpContext); ????} }

????public?class?HomeController?:?Controller ????{ ????????public?ActionResult?Index() ????????{ ????????????this.SessionExt().IsLogin(); ????????????return?View(); ????????} ????}