【 tulaoshi.com - 编程语言 】
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
代码如下:
//----------UserInfo.xml--------------
xml version="1.0" encoding="UTF-8" ?
UserInfo
UserIDluo/UserID
UserIDlin/UserID
/UserInfo
//----------UserInfo.xml--------------
xml version="1.0" encoding="UTF-8" ?
UserInfo
UserIDluo/UserID
UserIDlin/UserID
/UserInfo
一、生成UserInfo.xml
代码如下:
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");
二、浏览特定元素
代码如下:
//----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);
}
*/
代码如下:
//-------------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—
三、修改
代码如下:
//--------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;
}
}
}
四、添加
1 添在最后面(使用的是AddElem)
代码如下:
//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
UserIDluo/UserID
UserIDlin/UserID
/UserInfo
//---------添加后为-------------
xml version="1.0" encoding="UTF-8" ?
UserInfo
UserIDluo/UserID
UserIDlin/UserID
UserIDluoluo/UserID
/UserInfo
2 加在最前面(使用InsertElem)
代码如下:
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
UserIDluo/UserID
UserIDlin/UserID
/UserInfo
//------修改后-----
xml version="1.0" encoding="UTF-8" ?
UserInfo
UserIDAddUserIDHead/UserID
UserIDluo/UserID
UserIDlin/UserID
/UserInfo
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
UserIDluo/UserID
UserIDlin/UserID
/UserInfo
//------修改后-----
xml version="1.0" encoding="UTF-8" ?
UserInfo
UserIDAddUserIDHead/UserID
UserIDluo/UserID
UserIDlin/UserID
/UserInfo
五、删除
代码如下:
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;
}
}
}
六、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
代码如下:
//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
//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
七、产生
代码如下:
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; i10; 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; i10; 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");
八、查找
代码如下:
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");
}
九、修改
代码如下:
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");
}
CMarkup字符集问题
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 locale.h
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 locale.h
setlocale(LC_ALL, "");
strVal = CMarkup::UTF8ToA(strVal);
PS:通过strcpy等拷贝函数可以修正。