/// <summary>
/// 从实体池中获取实体
/// </summary>
/// <typeparam name="T">实体类型</typeparam>
/// <param name="key">标识符</param>
/// <returns></returns>
public static T GetDbContext <T>(object key) where T : DbContext, new()
{
string fullname = typeof(T).FullName;
string connName = "";
string lastName = fullname.Split('.').Last();
foreach (ConnectionStringSettings item in System.Configuration.ConfigurationManager.ConnectionStrings)
{
if (lastName.StartsWith(item.Name))
{
connName = item.Name;
break;
}
}
if (string.IsNullOrEmpty(connName))
{
throw new Exception(string.Format("配置文件中不包含{0}的链接字符串", fullname));
}
lock (l)
{
if (_DbContextPool.ContainsKey(connName))
{
var pool = (DbContextPool <T>)_DbContextPool[connName];
return(pool.Get(key));
}
else
{
var pool = new DbContextPool <T>(connName);
_DbContextPool.Add(connName, pool);
return(pool.Get(key));
}
}
}