VC解析XML文件-CMarkup的使用详解

时间：2021-07-20 08:53:03|栏目：C代码|点击：次

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。

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