转:VC解析XML文件-CMarkup的使用详解

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转:VC解析XML文件-CMarkup的使用详解

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"?> ");
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"?> ");
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(" ---tagName:%s,Data:%s-- ",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(" ---tagName:%s,Data:%s-- ",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(" ---tagName:%s,Data:%s-- ",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(" ---tagName:%s,Data:%s-- ",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(" ---tagName:%s,Data:%s-- ",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(" ---tagName:%s,Data:%s-- ",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(" ----id:%s,pwd:%s------- ",strID,strPwd);
                    if (strID=="UserID00"&&strPwd=="UserPwd00")
                    {
                            bFind = true;
                            break;
                    }
              }
      }
      if (bFind)
      {
              TRACE(" ---- find------ ");
      }
      else
      {
              TRACE(" ----no find------ ");
      }
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(" ----id:%s,pwd:%s------- ",strID,strPwd);
                    if (strID=="UserID00"&&strPwd=="UserPwd00")
                    {
                            bFind = true;
                            break;
                    }
              }
      }
      if (bFind)
      {
              TRACE(" ---- find------ ");
      }
      else
      {
              TRACE(" ----no find------ ");
      }

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(" ----id:%s,pwd:%s------- ",strID,strPwd);
                    if (strID=="UserID00"&&strPwd=="UserPwd00")
                    {
                            bFind = true;
                            xml.SetChildAttrib("UserID",strID+CString("Modify"));
                            xml.Save("UserInfo1.xml");
                            break;
                    }
              }
      }
      if (bFind)
      {
              TRACE(" ---- find------ ");
      }
      else
      {
              TRACE(" ----no find------ ");
      }

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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原文地址：https://www.cnblogs.com/skyofbitbit/p/4769243.html