/// <summary>
/// 取得服务实例，实例为单实例对象，释放实例只能用Reset()方法。
/// </summary>
/// <param name="daoFilePath">dao文件路径, 如传入空则由AppSettings["DaoFile"]决定</param>
/// <returns>服务实例</returns>
public static ServiceConfig GetInstance(string daoFilePath)
{
if (_instance == null)
{
object synRoot = _synRoot;
lock (synRoot)
{
if (_instance == null)
{
ConfigureHandler configureHandler = new ConfigureHandler(Reset);
DomDaoManagerBuilder domDaoManagerBuilder = new DomDaoManagerBuilder();
string text = string.IsNullOrEmpty(daoFilePath) ? ConfigurationManager.Configuration.GetSection("serviceCore:daoFile").Value : daoFilePath;
if (!Path.IsPathRooted(text))
{
text = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, text);
}
if (!File.Exists(text))
{
throw new Exception("AppSettings中指定的配置文件(DaoFile)不存在!");
}
try
{
domDaoManagerBuilder.ConfigureAndWatch(text, configureHandler);
}
catch (Exception ex2)
{
Exception ex = ex2;
while (ex.InnerException != null)
{
ex = ex.InnerException;
}
throw new Exception("dao.config不存在或错! " + ex2.Message, ex);
}
_instance = new ServiceConfig
{
DaoManager = IBatisNet.DataAccess.DaoManager.GetInstance("SqlMapDao")
};
ModifyConnectString(_instance.DaoManager, "SqlMapDao");
}
}
}
return(_instance);
}
/// <summary>
/// 释放实例现有实例。
/// </summary>
/// <param name="obj"></param>
public static void Reset(object obj)
{
_instance = null;
}