CString转化为COleDateTime

背景需求：

需要将一个从SqlServer数据库中读取的时间字符串转化为COleDateTime，以便进行日期操作。

数据库读取为Webservice接口方式，传递到客户端即为字符串。

1、错误调用

CString strDateTime = _T("2011-09-28 14:51:18.640");

COleDateTime oleDate;
oleDate.ParseDateTime(strDateTime);

说明：strDateTime数据含有毫秒级数据，转化为日期格式时出错。

2、正确调用

CString strDateTime = _T("2011-09-28 14:51:18.640");

//除去豪秒
int nIndex = strDateTime.ReverseFind('.');
strDateTime = strDateTime.Left(nIndex);


//转化为标准时间
COleDateTime oleDate;
oleDate.ParseDateTime(strDateTime);


CString strDate = oleDate.Format(_T("%Y-%m-%d"));
CString strTime = oleDate.Format("%H:%M:%S");


int nDayOfWeek = oleDate.GetDayOfWeek();
CString strDayOfWeek = _T("");
switch (nDayOfWeek)
{
case 1:strDayOfWeek = _T("星期日"); break;
case 2: strDayOfWeek = _T("星期一"); break;
case 3: strDayOfWeek = _T("星期二"); break;
case 4: strDayOfWeek = _T("星期三"); break;
case 5:strDayOfWeek = _T("星期四"); break;
case 6:strDayOfWeek = _T("星期五"); break;
case 7:strDayOfWeek = _T("星期六"); break;
}

strDateTime = _T("");
strDateTime += strDate;
strDateTime += _T(" ");
strDateTime += strDayOfWeek;
strDateTime += _T(" ");
strDateTime += strTime;

输出结果为：2011-09-28?星期三?14:51:18