VC轻松解析XML文件 - CMarkup类的使用方法
http://www.cctry.com/thread-3866-1-1.html
VC解析XML文件的工具有很多,CMarkup, tinyXML,还有IBM的,MS的等等。
据说tinyXML很好,可能字符集问题,我编译不了。
所以就用CMarkup来解析,使用过后,觉得非常不错,使用起来很方便。
CMarkup下载地址:http://www.firstobject.com/
发现网上有方法很法,我就摘下来了
//----------UserInfo.xml--------------
xml version="1.0" encoding="UTF-8" ?>
luo
lin
//----------UserInfo.xml--------------
xml version="1.0" encoding="UTF-8" ?>
luo
lin
复制代码
- 生成UserInfo.xml
CMarkup xml;
xml.SetDoc("xml version="1.0" encoding="UTF-8"?>rn");
xml.AddElem("UserInfo");
xml.IntoElem();
xml.AddElem("UserID","luo");
xml.AddElem("UserID","lin");
xml.OutOfElem();
xml.Save("UserInfo.xml");
CMarkup xml;
xml.SetDoc("xml version="1.0" encoding="UTF-8"?>rn");
xml.AddElem("UserInfo");
xml.IntoElem();
xml.AddElem("UserID","luo");
xml.AddElem("UserID","lin");
xml.OutOfElem();
xml.Save("UserInfo.xml");
复制代码
- 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);
}
*/
复制代码
//-------------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);
}
*/
复制代码
//-------------结果----------
---tagName:UserID,Data:luo--
---tagName:UserID,Data:lin—
- 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;
}
}
}
//--------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;
}
}
}
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- 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" ?>
luo
lin
//---------添加后为-------------
xml version="1.0" encoding="UTF-8" ?>
luo
lin
luoluo
复制代码
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" ?>
luo
lin
//------修改后-----
xml version="1.0" encoding="UTF-8" ?>
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—
xml version="1.0" encoding="UTF-8" ?>
luo
lin
//------修改后-----
xml version="1.0" encoding="UTF-8" ?>
AddUserIDHead
luo
lin
复制代码
- 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;
}
}
}
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;
}
}
}
复制代码
- 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" ?>
//UserInfo1.xml
xml version="1.0" encoding="UTF-8" ?>
复制代码
- 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");
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");
复制代码
- 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");
}
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");
}
复制代码
- 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");
}
复制代码
CMarkup字符集问题
daubwu posted @ 2008年9月08日 00:54 in VC with tags XML CMarkup , 38 阅读
CMarkup支持Unicode,_MBCS宏定义。VS默认设置为MBCS宏定义,未设置该宏时为UTF-8编码。
有 MBCS宏定义,且 打开的文件是UTF-8编码:
CMarkup在Load时将UTF-8转换ANSI编码格式,所以要在读取的地方设置
include
setlocale(LC_ALL, "");
没有MBCS宏定义,且打开的文件是UTF-8编码:
系统默认将文件按UTF-8格式读入系统中,所以显示的时候要手动将数据转换为ANSI格式的进行显示
include
setlocale(LC_ALL, "");
strVal = CMarkup::UTF8ToA(strVal);
PS:通过strcpy等拷贝函数可以修正。