/// <summary>
/// 获取模块菜单表，从缓存读取
/// </summary>
public static List <BaseModuleEntity> GetEntities()
{
if (HttpContext.Current.Session == null || HttpContext.Current.Cache[BaseModuleEntity.TableName] == null)
{
lock (BaseSystemInfo.UserLock)
{
if (HttpContext.Current.Session == null || HttpContext.Current.Cache[BaseModuleEntity.TableName] == null)
{
// 读取目标表中的数据
List <BaseModuleEntity> entityList = null;
string tableName = BaseSystemInfo.SystemCode + "Module";
BaseModuleManager manager = new DotNet.Business.BaseModuleManager(tableName);
entityList = manager.GetList <BaseModuleEntity>();
// 这个是没写过期时间的方法
// HttpContext.Current.Cache[tableName] = entityList;
// 设置过期时间为8个小时，第2天若有不正常的自动就可以正常了
HttpContext.Current.Cache.Add(BaseModuleEntity.TableName, entityList, null, DateTime.Now.AddMinutes(10), TimeSpan.Zero, CacheItemPriority.Normal, null);
}
}
}
return(HttpContext.Current.Cache[BaseModuleEntity.TableName] as List <BaseModuleEntity>);
}
/// <summary>
/// 从缓存获取获取实体
/// </summary>
/// <param name="id">主键</param>
public static BaseModuleEntity GetObjectByCache(string systemCode, string id)
{
if (string.IsNullOrWhiteSpace(systemCode))
{
systemCode = "Base";
}
BaseModuleEntity result = null;
System.Web.Caching.Cache cache = HttpRuntime.Cache;
string cacheObject = systemCode + "Module";
if (!string.IsNullOrEmpty(id))
{
cacheObject = systemCode + "Module" + id;
}
if (cache != null && cache[cacheObject] == null)
{
lock (locker)
{
if (cache != null && cache[cacheObject] == null)
{
BaseModuleManager manager = new DotNet.Business.BaseModuleManager(BaseModuleEntity.TableName);
result = manager.GetObject(id);
// 若是空的不用缓存，继续读取实体
if (result != null)
{
cache.Add(cacheObject, result, null, DateTime.Now.AddMinutes(10), TimeSpan.Zero, CacheItemPriority.Normal, null);
System.Console.WriteLine(System.DateTime.Now.ToString(BaseSystemInfo.DateTimeFormat) + " cache " + systemCode + " Module " + id);
}
}
}
}
result = cache[cacheObject] as BaseModuleEntity;
return(result);
}
