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
查看源代码拷贝至剪贴板打印代码
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
查看源代码拷贝至剪贴板打印代码
//--------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
查看源代码拷贝至剪贴板打印代码
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

查看源代码拷贝至剪贴板打印代码
//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
查看源代码拷贝至剪贴板打印代码
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");
}