转:VC解析XML文件-CMarkup的使用详解

时间:2021-01-05 07:29:29

本篇文章是对VC解析XML文件-CMarkup的使用进行了详细的分析介绍,需要的朋友参考下

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

复制代码 代码如下:

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

一、生成UserInfo.xml

复制代码 代码如下:

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");   
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");

二、浏览特定元素

复制代码 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);   

      }   
      */

复制代码 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

复制代码 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)

复制代码 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>    
  <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>

2  加在最前面(使用InsertElem)

复制代码 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>    
  <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>   
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>

五、删除

复制代码 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

复制代码 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

复制代码 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; 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");

八、查找

复制代码 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

复制代码 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。