vc中操作Xml--使用CMarkup类

DotNet中使用xml相对比较轻松，在vc中操作xml，有些繁琐。最近在网络上得知CMarkup比较好用，于是试了下，还好，就把部分例子写出来。以后有时间的话，再写清楚点。

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//----------UserInfo.xml--------------

luo

lin

//----------UserInfo.xml--------------

luo

lin

1. 生成UserInfo.xml

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CMarkup xml;

xml.SetDoc(""r"n");

xml.AddElem("UserInfo");

xml.IntoElem();

xml.AddElem("UserID","luo");

xml.AddElem("UserID","lin");

xml.OutOfElem();

xml.Save("UserInfo.xml");

CMarkup xml;

xml.SetDoc(""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

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//----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―

//----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

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//--------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;

}

}

}

//--------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）

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//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------

luo

lin

//---------添加后为-------------

luo

lin

luoluo

//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------

luo

lin

//---------添加后为-------------

luo

lin

luoluo

4.2 加在最前面（使用InsertElem）

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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―

luo

lin

//------修改后-----

AddUserIDHead

luo

lin

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―

luo

lin

//------修改后-----

AddUserIDHead

luo

lin

5. 删除

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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;

}

}

}

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

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//UserInfo1.xml

//UserInfo1.xml

7. 产生

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CString strID = _T("");

CString strPwd = _T("");

CMarkup xml;

xml.SetDoc("");

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");

CString strID = _T("");

CString strPwd = _T("");

CMarkup xml;

xml.SetDoc("");

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

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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");

}

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

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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");

}