internal bool OpenCon(ConnBean cb)
{
try
{
if (!isOpenTrans && cb != null && isAllowResetConn && connObject.IsAllowSlave())
{
ResetConn(cb);
}
Open();
if (IsAllowRecordSql)
{
_watch.Start();
}
return(true);
}
catch (DbException err)
{
if (cb == null && connObject.BackUp != null)
{
connObject.InterChange();
return(OpenCon(connObject.BackUp));
//if (OpenConBak())
//{
// return true;
//}
}
else
{
WriteError("OpenCon():" + err.Message);
}
}
return(false);
}
/// <summary>
/// 打开链接，允许切从。
/// </summary>
internal bool OpenCon(ConnBean cb, AllowConnLevel leve)
{
try
{
if (cb == null)
{
cb = useConnBean;
if (isOpenTrans && cb.IsSlave)
{
ResetConn(connObject.Master);
}
}
if (!cb.IsOK)
{
if ((int)leve > 1 && connObject.BackUp != null && connObject.BackUp.IsOK)
{
ResetConn(connObject.BackUp); //重置链接。
connObject.InterChange(); //主从换位置
return(OpenCon(connObject.Master, leve));
}
else if ((int)leve > 2)
{
//主挂了，备也挂了（因为备会替主）
ConnBean nextSlaveBean = connObject.GetSlave();
if (nextSlaveBean != null)
{
ResetConn(nextSlaveBean);//重置链接。
return(OpenCon(nextSlaveBean, leve));
}
}
}
else if (!isOpenTrans && cb != useConnBean && isAllowResetConn && connObject.IsAllowSlave())
{
ResetConn(cb);//,_IsAllowRecordSql只有读数据错误才切，表结构错误不切？
}
if (useConnBean.IsOK)
{
Open();//异常抛
}
else
{
WriteError("OpenCon():" + useConnBean.ErrorMsg);
}
if (IsAllowRecordSql)
{
_watch.Start();
}
return(useConnBean.IsOK);
}
catch (DbException err)
{
useConnBean.IsOK = false;
useConnBean.ErrorMsg = err.Message;
return(OpenCon(null, leve));
}
}
