轉:VC解析XML文件-CMarkup的使用詳解

時間 2019-11-06

標籤解析 xml 文件 cmarkup 使用詳解欄目 C&C++ 简体版

原文原文鏈接

本篇文章是對VC解析XML文件-CMarkup的使用進行了詳細的分析介紹，須要的朋友參考下函數

VC解析XML文件的工具備不少，CMarkup， tinyXML，還有IBM的，MS的等等。
聽說tinyXML很好，可能字符集問題，我編譯不了。
因此就用CMarkup來解析，使用事後，以爲很是不錯，使用起來很方便。
CMarkup下載地址：http://www.firstobject.com/
發現網上有方法很法，我就摘下來了工具

複製代碼代碼以下:編碼

//----------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>spa

1、生成UserInfo.xmlcode

複製代碼代碼以下:orm

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");xml

2、瀏覽特定元素io

複製代碼代碼以下:編譯

//----查看全部UserID----
CMarkup xml;
xml.Load("UserInfo.xml");
BOOL bFind = true;
xml.ResetMainPos();
while (xml.FindChildElem("UserID");)
{
      //此時接點仍是父接點
        CString strTagName = _T("");
        CString strData = _T("");
        strTagName = xml.GetChildTagName();
        strData = xml.GetChildData();
        TRACE("\n---tagName:%s,Data:%s--\n",strTagName,strData);
}
      /********************這樣也能夠******************
      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();
      }*/
      /**************這樣也能夠**********************
      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);
      }
      */     隨機數

複製代碼代碼以下:

//-------------結果----------
---tagName:UserID,Data:luo--
---tagName:UserID,Data:lin—
//----查看全部UserID----
CMarkup xml;
xml.Load("UserInfo.xml");
BOOL bFind = true;
xml.ResetMainPos();
while (xml.FindChildElem("UserID");)
{
      //此時接點仍是父接點
        CString strTagName = _T("");
        CString strData = _T("");
        strTagName = xml.GetChildTagName();
        strData = xml.GetChildData();
        TRACE("\n---tagName:%s,Data:%s--\n",strTagName,strData);
}
      /********************這樣也能夠******************
      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();
      }*/
      /**************這樣也能夠**********************
      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);
      }
      */
//-------------結果----------
---tagName:UserID,Data:luo--
---tagName:UserID,Data:lin—

3、修改

複製代碼代碼以下:

//--------把UserID爲」luo」改成」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爲」luo」改成」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;
                    }
              }
      }

4、添加
1 添在最後面（使用的是AddElem）

複製代碼代碼以下:

//加在最後面
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");
      }
//--------原來爲------
xml version="1.0" encoding="UTF-8" ?>
<UserInfo>
<UserID>luo</UserID>
<UserID>lin</UserID>
</UserInfo>
//---------添加後爲-------------
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）

複製代碼代碼以下:

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");
}
//----原來爲—
xml version="1.0" encoding="UTF-8" ?>
<UserInfo>
<UserID>luo</UserID>
<UserID>lin</UserID>
</UserInfo>
//------修改後-----
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");
}
//----原來爲—
xml version="1.0" encoding="UTF-8" ?>
<UserInfo>
<UserID>luo</UserID>
<UserID>lin</UserID>
</UserInfo>
//------修改後-----
xml version="1.0" encoding="UTF-8" ?>
<UserInfo>
<UserID>AddUserIDHead</UserID>
<UserID>luo</UserID>
<UserID>lin</UserID>
</UserInfo>

5、刪除

複製代碼代碼以下:

CMarkup xml;
xml.Load("UserInfo.xml");
BOOL bFind = true;
xml.ResetMainPos();
while (bFind)
{
      bFind = xml.FindChildElem("UserID");
      if (bFind)
      {
              //此時接點仍是父接點
              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)
      {
              //此時接點仍是父接點
              CString strData = _T("");
              strData = xml.GetChildData();
              if (strData=="luo")
              {
                    xml.RemoveChildElem();
                    xml.Save("UserInfo.xml");
                    break;
              }
      }
}

6、查找
見第二點瀏覽。相似上面的例子裏面沒有屬性這些東西，下面的一個例子是有屬性的

複製代碼代碼以下:

//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>

7、產生

複製代碼代碼以下:

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++)
      {
              //產生一個隨機數，做爲權限
              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++)
      {
              //產生一個隨機數，做爲權限
              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");

8、查找

複製代碼代碼以下:

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");
      }

9、修改

複製代碼代碼以下:

CMarkup字符集問題CMarkup支持Unicode，_MBCS宏定義。VS默認設置爲MBCS宏定義，未設置該宏時爲UTF-8編碼。有 MBCS宏定義，且打開的文件是UTF-8編碼： CMarkup在Load時將UTF-8轉換ANSI編碼格式，因此要在讀取的地方設置 #include <locale.h> setlocale(LC_ALL, ""); 沒有MBCS宏定義，且打開的文件是UTF-8編碼：系統默認將文件按UTF-8格式讀入系統中，因此顯示的時候要手動將數據轉換爲ANSI格式的進行顯示 #include <locale.h> setlocale(LC_ALL, ""); strVal = CMarkup::UTF8ToA(strVal); PS：經過strcpy等拷貝函數能夠修正。