C# Global.asax.cs 定时任务

定时执行更新Redis缓存操作

protected void Application_Start(object sender, EventArgs e)
{Timer timer = new Timer();timer.Enabled = true;timer.Interval = 3600000; //执行间隔时间,单位为毫秒; 这里实际间隔为1小时  
    timer.Start();timer.Elapsed += new System.Timers.ElapsedEventHandler(OrgCacheInterval); 
}/// <summary>
/// 定时检测组织机构缓存是否需要更新
/// </summary>
/// <param name="source"></param>
/// <param name="e"></param>
public void OrgCacheInterval(object source, ElapsedEventArgs e)
{ SystemService ser = new SystemService();ser.OrgCacheInterval();
}

/// <summary>
/// 组织机构缓存定时更新
/// </summary>
public void OrgCacheInterval()
{//不存在组织机构缓存或者时间戳时，更新if (!RedisCacheHelper.Exists("OrgList") || !RedisCacheHelper.Exists("OrgList:Time")){UpdateAllOrgCache();}//存在时间戳时判断时间是否一致，不一致时更新else{//缓存时间戳string cacheTime = RedisCacheHelper.Get<string>("OrgList:Time");//数据库更新缓存时间string modifyTime = OrgDb.GetKeyLastModifyTime("OrgList", "");//时间戳标记不一致时更新if (cacheTime != modifyTime){UpdateAllOrgCache();}}
}

/// <summary>
/// 获取键值更新时间
/// </summary>
/// <param name="db_key"></param>
/// <param name="lang_type"></param>
/// <returns></returns>
public string GetKeyLastModifyTime(string db_key, string lang_type)
{string time = string.Empty;try{string sql = string.Format(@"select * from sys_dbcache_time t where 1=1 and t.db_key='{0}' ", db_key);if (!string.IsNullOrEmpty(lang_type)){sql += string.Format(@" and t.lang_type='{0}' ", lang_type);}DataTable dt = OdpOracleHelper.Query(sql).Tables[0];if (dt != null && dt.Rows.Count > 0){time = Convert.ToDateTime(dt.Rows[0]["op_modify_time"]).ToString("yyyy-MM-dd HH:mm:ss");}else{string _time = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss");string insertSql = string.Format(@"insert into sys_dbcache_time(db_key,lang_type,op_modify_time) 
　　　　　　　　　　　　　　　　　　　　　　　　　　　 values('{0}','{1}',to_date('{2}','yyyy-MM-dd HH24:MI:SS'))", db_key, lang_type, _time);OdpOracleHelper.ExecuteSql(insertSql);time = _time;}}catch (Exception ex){throw ex;}return time;
}