VC++中使用CMarkup类操作Xml

//----------UserInfo.xml--------------
<?xml version="1.0" encoding="UTF-8" ?>
<UserInfo>
<UserID>luo</UserID>
<UserID>lin</UserID>
</UserInfo>

1、生成UserInfo.xml

CMarkup xml;
xml.SetDoc("<?xml version=/"1.0/" encoding=/"UTF-8/"?>/r/n");
xml.AddElem("UserInfo");
xml.IntoElem();
xml.AddElem("UserID","luo");
xml.AddElem("UserID","lin");
xml.OutOfElem();
xml.Save("UserInfo.xml");

 

2、浏览特定元素

//----查看所有UserID----
CMarkup xml;
xml.Load("UserInfo.xml");

BOOL bFind = true;
xml.ResetMainPos();

while (xml.FindChildElem("UserID"))
{
    //此时接点还是父接点
      CString strTagName = _T("");
      CString strData = _T("");
     strTagName = xml.GetChildTagName();
      strData = xml.GetChildData();
      TRACE("/n---tagName:%s,Data:%s--/n",strTagName,strData);
}

 /********************这样也可以******************
    CMarkup xml;
    xml.Load("UserInfo.xml");
    BOOL bFind = true;
    xml.ResetMainPos();   

    while (xml.FindChildElem("UserID"))
    {
              xml.IntoElem();
              CString strTagName = _T("");
              CString strData = _T("");
              strTagName = xml.GetTagName();
              strData = xml.GetData();
              TRACE("/n---tagName:%s,Data:%s--/n",strTagName,strData);
              xml.OutOfElem();
    }*/

/**************这样也可以**********************
    CMarkup xml;
    xml.Load("UserInfo.xml");
    BOOL bFind = true;
    xml.ResetMainPos();
    xml.FindElem(); //UserInfo
    xml.IntoElem();
    while (xml.FindElem("UserID"))
    {

         CString strTagName = _T("");
         CString strData = _T("");
         strTagName = xml.GetTagName();
         strData = xml.GetData();
         TRACE("/n---tagName:%s,Data:%s--/n",strTagName,strData);
    }
    */
//-------------结果----------
---tagName:UserID,Data:luo--
---tagName:UserID,Data:lin—

3、修改
//--------把UserID为”luo”改为”flypigluo”-----------

BOOL bLoadXml = false;
CMarkup xml;
bLoadXml = xml.Load("UserInfo.xml");
  if (bLoadXml)
  {
     CString strUserID = _T("");
     xml.ResetMainPos();
     xml.FindElem();
     xml.IntoElem();
     while (xml.FindElem("UserID"))
     {

        strUserID = xml.GetData();
        if (strUserID=="luo")
         {
            xml.SetData(CString("flypig")+strUserID);
            xml.Save("UserInfo.xml");
            break;

          }
        }
    }

4、添加

4.1   添在最后面（使用的是AddElem）

//加在最后面
    BOOL bLoadXml = false;
    CMarkup xml;
    bLoadXml = xml.Load("UserInfo.xml");
    if (bLoadXml)
    {
        xml.ResetMainPos();
        xml.FindElem();
        xml.IntoElem();
        xml.AddElem("UserID","luoluo");
        xml.OutOfElem();
        xml.Save("UserInfo.xml");
    }
//--------原来为------
<?xml version="1.0" encoding="UTF-8" ?>
<UserInfo>
<UserID>luo</UserID>
<UserID>lin</UserID>
</UserInfo>
//---------添加后为-------------
<?xml version="1.0" encoding="UTF-8" ?>
<UserInfo>
<UserID>luo</UserID>
<UserID>lin</UserID>
<UserID>luoluo</UserID>
</UserInfo>

4、2 加在最前面（使用InsertElem）

BOOL bLoadXml = false;
CMarkup xml;
bLoadXml = xml.Load("UserInfo.xml");
if (bLoadXml)
{
    xml.ResetMainPos();
    xml.FindElem();
    xml.IntoElem();
    xml.InsertElem("UserID","AddUserIDHead");
    xml.OutOfElem();
    xml.Save("UserInfo.xml");
}

//----原来为—

<?xml version="1.0" encoding="UTF-8" ?>
<UserInfo>
<UserID>luo</UserID>
<UserID>lin</UserID>
</UserInfo>

//------修改后-----

<?xml version="1.0" encoding="UTF-8" ?>
<UserInfo>
<UserID>AddUserIDHead</UserID>
<UserID>luo</UserID>
<UserID>lin</UserID>
</UserInfo>

5、删除

CMarkup xml;
xml.Load("UserInfo.xml");
BOOL bFind = true;
xml.ResetMainPos(); 
while (bFind)
{
    bFind = xml.FindChildElem("UserID");
    if (bFind)
    {
        //此时接点还是父接点
        CString strData = _T("");
        strData = xml.GetChildData();
        if (strData=="luo")
        {
          xml.RemoveChildElem();
          xml.Save("UserInfo.xml");
           break;
       }
    }
}

6、查找

见第二点浏览。类似
上面的例子里面没有属性这些东西，下面的一个例子是有属性的

//UserInfo1.xml
<?xml version="1.0" encoding="UTF-8" ?>
<UserInfo>
<User UserID="UserID00" UserPwd="UserPwd00" UserLevel="158" />
<User UserID="UserID01" UserPwd="UserPwd01" UserLevel="162" />
<User UserID="UserID02" UserPwd="UserPwd02" UserLevel="165" />
<User UserID="UserID03" UserPwd="UserPwd03" UserLevel="168" />
<User UserID="UserID04" UserPwd="UserPwd04" UserLevel="171" />
<User UserID="UserID05" UserPwd="UserPwd05" UserLevel="175" />
<User UserID="UserID06" UserPwd="UserPwd06" UserLevel="178" />
<User UserID="UserID07" UserPwd="UserPwd07" UserLevel="181" />
<User UserID="UserID08" UserPwd="UserPwd08" UserLevel="184" />
<User UserID="UserID09" UserPwd="UserPwd09" UserLevel="188" />

</UserInfo>

7、产生

    CString strID = _T("");
    CString strPwd = _T("");
    CMarkup xml;
    xml.SetDoc("<?xml version=/"1.0/" encoding=/"UTF-8/"?>");
    xml.AddElem("UserInfo");
    xml.IntoElem();
    for (int i=0; i<10; i++)
    {
        //产生一个随机数，作为权限
        srand(UINT(time(NULL)+i));
        int nLevel = rand()%256;
        strID.Format("UserID%02d",i);
        strPwd.Format("UserPwd%02d",i);
        xml.AddElem("User");
        xml.AddAttrib("UserID",strID);
        xml.AddAttrib("UserPwd",strPwd);
       xml.AddAttrib("UserLevel",nLevel);
    }
    xml.OutOfElem();
    xml.Save("UserInfo1.xml");

8、查找

CMarkup xml;
BOOL bLoad = false;
BOOL bFind = false;
bLoad = xml.Load("UserInfo1.xml");
   if (bLoad)
    {
        CString strID;
        CString strPwd;
        xml.ResetMainPos();
        xml.FindElem();   //UserInfo
        while (xml.FindChildElem("User"))
        {
              strID = xml.GetChildAttrib("UserID");
              strPwd = xml.GetChildAttrib("UserPwd");
              TRACE("/n----id:%s,pwd:%s-------/n",strID,strPwd);
              if (strID=="UserID00"&&strPwd=="UserPwd00")
              {
                  bFind = true;
                  break;
              }
        }
    }
    if (bFind)
    {
        TRACE("/n---- find------/n");
    }
    else
    {
        TRACE("/n----no find------/n");
    }


9、修改

    CMarkup xml;
    BOOL bLoad = false;
    BOOL bFind = false;
    bLoad = xml.Load("UserInfo1.xml");
    if (bLoad)
    {
        CString strID;
        CString strPwd;
        xml.ResetMainPos();
        xml.FindElem();   //UserInfo
        while (xml.FindChildElem("User"))
        {
              strID = xml.GetChildAttrib("UserID");
              strPwd = xml.GetChildAttrib("UserPwd");
              TRACE("/n----id:%s,pwd:%s-------/n",strID,strPwd);
              if (strID=="UserID00"&&strPwd=="UserPwd00")
              {
                  bFind = true;
                  xml.SetChildAttrib("UserID",strID+CString("Modify"));
                  xml.Save("UserInfo1.xml");
                  break;
              }
        }
   }
    if (bFind)
    {
        TRACE("/n---- find------/n");
    }
    else
    {
        TRACE("/n----no find------/n");
    }

 

 

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