CMarkup类解析xml文件

将CMarkup.cpp和CMarkup.h导入到我们的工程中就可以了。编译可能会出现问题，解决的方法是在CMarkup.cpp的开头加上#include <stdafx.h>，或者关闭预编译也可以。

1、创建一个XML文档

 

对于创建一个XML文档，需要实例化一个CMarkup对象，并调用AddElem创建根元素。在这个位置，如果你调用 AddElem("School") ，文档会简单的装一个空元素<School/>. 然后调用AddChildElem 在根元素的下面创建元素。

1      CMarkup xml;
2      xml.SetDoc( " <?xml version=/ " 1.0 / " encoding=/ " UTF - 8 / " ?>/r/n " );
3      xml.AddElem( " School " );
4      xml.IntoElem();
5      xml.AddElem( " Department " , " Automation " );
6      xml.AddElem( " Department " , " Computer " );
7      xml.AddElem( " Department " , " Math " );
8      xml.AddElem( " Department " , " English " );
9      xml.OutOfElem();
10      xml.Save( " School.xml " );

效果如下：

 

1 <? xml version="1.0" encoding="UTF-8" ?>
2 < School >
3      < Department > Automation </ Department >
4      < Department > Computer </ Department >
5      < Department > Math </ Department >
6      < Department > English </ Department >
7 </ School >
8

2、浏览特定元素

4、添加
4、1 添加在最后面（用AddElem）

1      CMarkup xml;
2      BOOL bLoadXml = FALSE;
3      bLoadXml = xml.Load( " School.xml " );
4      if (bLoadXml)
5      {
6          xml.ResetMainPos();
7          xml.FindElem();
8          xml.IntoElem();
9          xml.AddElem( " Department " , " SiQinghua " );
10          xml.OutOfElem();
11          xml.Save( " School.xml " );
12      }

效果如下：

1 <? xml version="1.0" encoding="UTF-8" ?>
2 < School >
3      < Department > Automation </ Department >
4      < Department > Computer </ Department >
5      < Department > Math </ Department >
6      < Department > Chinese </ Department >
7      < Department > SiQinghua </ Department >
8 </ School >

4、2 添加在最前面（用InsertElem）

1      CMarkup xml;
2      BOOL bLoadXml = FALSE;
3      bLoadXml = xml.Load( " School.xml " );
4      if (bLoadXml)
5      {
6          xml.ResetMainPos();
7          xml.FindElem();
8          xml.IntoElem();
9          xml.AddElem( " Department " , " SiQinghua " );
10          xml.OutOfElem();
11          xml.Save( " School.xml " );
12      }

效果如下：

1 <? xml version="1.0" encoding="UTF-8" ?>
2 < School >
3      < Department > NARI </ Department >
4      < Department > Automation </ Department >
5      < Department > Computer </ Department >
6      < Department > Math </ Department >
7      < Department > Chinese </ Department >
8      < Department > SiQinghua </ Department >
9 </ School >
10

5、删除

1      CMarkup xml;
2      BOOL bLoadXml = FALSE;
3      bLoadXml = xml.Load( " School.xml " );
4      if (bLoadXml)
5      {
6          BOOL bFind = TRUE;
7          xml.ResetMainPos();
8          while (bFind)
9          {
10              bFind = xml.FindChildElem( " Department " );
11              if (bFind)
12              {
13                  CString strData = _T( "" );
14                  strData = xml.GetChildData();     // 此时节点还是父节点
15                  if ( " SiQinghua " == strData)
16                  {
17                      xml.RemoveChildElem();
18                      xml.Save( " School.xml " );
19                      break ;
20                  }
21              }
22          }
23      }

效果如下：

1 <? xml version="1.0" encoding="UTF-8" ?>
2 < School >
3      < Department > NARI </ Department >
4      < Department > Automation </ Department >
5      < Department > Computer </ Department >
6      < Department > Math </ Department >
7      < Department > Chinese </ Department >
8 </ School >
9

上面的例子都是不带属性的，下面举一个带有属性的例子。
1、生成XML文档

1      CMarkup xml;
2      xml.SetDoc( " <?xml version=/ " 1.0 / " encoding=/ " UTF - 8 / " ?> " );
3      xml.AddElem( " UserInfo " );
4      xml.IntoElem();
5      for ( int i = 0 ;i < 10 ;i ++ )
6      {
7          CString strID = _T( "" );
8          CString strPwd = _T( "" );
9
10          srand(UINT(time(NULL) + i)); // 产生一个随机数
11          int nLevel = rand() % 256 ;
12
13          strID.Format( " UserID%02d " ,i);
14          strPwd.Format( " UserPwd%02d " ,i);
15
16          xml.AddElem( " User " );
17          xml.AddAttrib( " UserID " ,strID);
18          xml.AddAttrib( " UserPwd " ,strPwd);
19          xml.AddAttrib( " UserLevel " ,nLevel);
20      }
21      xml.OutOfElem();
22      xml.Save( " UserInfo.xml " );

效果如下：

1 <? xml version="1.0" encoding="UTF-8" ?>
2 < UserInfo >
3      < User UserID ="UserID00" UserPwd ="UserPwd00" UserLevel ="85" />
4      < User UserID ="UserID01" UserPwd ="UserPwd01" UserLevel ="88" />
5      < User UserID ="UserID02" UserPwd ="UserPwd02" UserLevel ="92" />
6      < User UserID ="UserID03" UserPwd ="UserPwd03" UserLevel ="95" />
7      < User UserID ="UserID04" UserPwd ="UserPwd04" UserLevel ="98" />
8      < User UserID ="UserID05" UserPwd ="UserPwd05" UserLevel ="101" />
9      < User UserID ="UserID06" UserPwd ="UserPwd06" UserLevel ="105" />
10      < User UserID ="UserID07" UserPwd ="UserPwd07" UserLevel ="108" />
11      < User UserID ="UserID08" UserPwd ="UserPwd08" UserLevel ="111" />
12      < User UserID ="UserID09" UserPwd ="UserPwd09" UserLevel ="115" />
13 </ UserInfo >
14

 

2、查找特定属性

1      CMarkup xml;
2      BOOL bLoadXml = FALSE;
3      BOOL bFind = FALSE;
4      bLoadXml = xml.Load( " UserInfo.xml " );
5      if (bLoadXml)
6      {
7          CString strID;
8          CString strPwd;
9          xml.ResetMainPos();
10          xml.FindElem();     // UserInfo
11          while (xml.FindChildElem( " User " ))
12          {
13              strID = xml.GetChildAttrib( " UserID " );
14              strPwd = xml.GetChildAttrib( " UserPwd " );
15              TRACE( " /n---id:%s,pwd:%s---/n " ,strID,strPwd);
16              if (strID == " UserID02 " && strPwd == " UserPwd02 " )
17              {
18                  bFind = TRUE;
19                  break ;
20              }
21          }
22      }
23      if (bFind == TRUE)
24          TRACE( " /n---find---/n " );
25      else
26          TRACE( " /n---not find---/n " );

修改特定属性

1      CMarkup xml;
2      BOOL bFind = FALSE;
3      BOOL bLoadXml = FALSE;
4      bLoadXml = xml.Load( " UserInfo.xml " );
5      if (bLoadXml)
6      {
7          CString strID;
8          CString strPwd;
9          xml.ResetMainPos();
10          xml.FindElem();     // UserInfo
11          while (xml.FindChildElem( " User " ))
12          {
13              strID = xml.GetChildAttrib( " UserID " );
14              strPwd = xml.GetChildAttrib( " UserPwd " );
15              TRACE( " /n--id:%s,pwd:%s--/n " ,strID,strPwd);
16              if (strID == " UserID02 " && strPwd == " UserPwd02 " )
17              {
18                  bFind = TRUE;
19                  xml.SetChildAttrib( " UserID " ,strID + CString( " Modified " ));
20                  xml.Save( " UserInfo.xml " );
21                  break ;
22              }
23          }
24      }
25      if (bFind == TRUE)
26          TRACE( " /n---find---/n " );
27      else
28          TRACE( " /n---not find---/n " );

效果如下：

1 <? xml version="1.0" encoding="UTF-8" ?>
2 < UserInfo >
3      < User UserID ="UserID00" UserPwd ="UserPwd00" UserLevel ="85" />
4      < User UserID ="UserID01" UserPwd ="UserPwd01" UserLevel ="88" />
5      < User UserID ="UserID02Modified" UserPwd ="UserPwd02" UserLevel ="92" />
6      < User UserID ="UserID03" UserPwd ="UserPwd03" UserLevel ="95" />
7      < User UserID ="UserID04" UserPwd ="UserPwd04" UserLevel ="98" />
8      < User UserID ="UserID05" UserPwd ="UserPwd05" UserLevel ="101" />
9      < User UserID ="UserID06" UserPwd ="UserPwd06" UserLevel ="105" />
10      < User UserID ="UserID07" UserPwd ="UserPwd07" UserLevel ="108" />
11      < User UserID ="UserID08" UserPwd ="UserPwd08" UserLevel ="111" />
12      < User UserID ="UserID09" UserPwd ="UserPwd09" UserLevel ="115" />
13 </ UserInfo >

1      CMarkup xml;
2      xml.Load("School.xml");
3      BOOL bFind=TRUE;
4      xml.ResetMainPos();
5     
6     while(xml.FindChildElem("Department"))
7      {
8          CString strTagName=_T("");
9          CString strData=_T("");
10          strTagName=xml.GetChildTagName();    //此时节点是父节点
11          strData=xml.GetChildData();
12          TRACE("/n---tagName:%s,Data:%s--/n",strTagName,strData);
13      }

//***********************这样也可以*****************************/

1      CMarkup xml;
2      xml.Load("School.xml");
3      BOOL bFind = TRUE;
4      xml.ResetMainPos();
5     
6     while (xml.FindChildElem("Department"))        
7      {
8          xml.IntoElem();
9          CString strTagName = _T("");
10          CString strData = _T("");
11          strTagName = xml.GetTagName();
12          strData = xml.GetData();
13          TRACE("/n---tagName:%s,Data:%s--/n",strTagName,strData);
14          xml.OutOfElem();
15      }

//***********************或者这样也可以***************************/

1      CMarkup xml;
2      xml.Load("School.xml");
3      BOOL bFind = TRUE;
4      xml.ResetMainPos();
5      xml.FindElem();  //School
6      xml.IntoElem();
7     
8     while (xml.FindElem("Department"))
9      {
10          CString strTagName = _T("");
11          CString strData = _T("");
12          strTagName = xml.GetTagName();
13          strData = xml.GetData();
14          TRACE("/n---tagName:%s,Data:%s--/n",strTagName,strData);
15      }

 

3、修改元素
//把Department为”English“改为”Chinese“

1      CMarkup xml;
2      BOOL bLoadXml = FALSE;
3      bLoadXml = xml.Load( " School.xml " );
4
5      if (bLoadXml)
6      {
7          CString str = _T( "" );
8          xml.ResetMainPos();
9          xml.FindElem();
10          xml.IntoElem();
11          while (xml.FindElem( " Department " ))
12          {
13              str = xml.GetData();
14              if (str == " English " )
15              {
16                  xml.SetData( " Chinese " );
17                  xml.Save( " School.xml " );
18                  break ;
19              }
20          }
21      }

效果如下：

1 <? xml version="1.0" encoding="UTF-8" ?>
2 < School >
3      < Department > Automation </ Department >
4      < Department > Computer </ Department >
5      < Department > Math </ Department >
6      < Department > Chinese </ Department >
7 </ School >
8

1      CMarkup xml;
2      xml.Load("School.xml");
3      BOOL bFind=TRUE;
4      xml.ResetMainPos();
5     
6     while(xml.FindChildElem("Department"))
7      {
8          CString strTagName=_T("");
9          CString strData=_T("");
10          strTagName=xml.GetChildTagName();    //此时节点是父节点
11          strData=xml.GetChildData();
12          TRACE("/n---tagName:%s,Data:%s--/n",strTagName,strData);
13      }

//***********************这样也可以*****************************/

1      CMarkup xml;
2      xml.Load("School.xml");
3      BOOL bFind = TRUE;
4      xml.ResetMainPos();
5     
6     while (xml.FindChildElem("Department"))        
7      {
8          xml.IntoElem();
9          CString strTagName = _T("");
10          CString strData = _T("");
11          strTagName = xml.GetTagName();
12          strData = xml.GetData();
13          TRACE("/n---tagName:%s,Data:%s--/n",strTagName,strData);
14          xml.OutOfElem();
15      }

//***********************或者这样也可以***************************/

1      CMarkup xml;
2      xml.Load("School.xml");
3      BOOL bFind = TRUE;
4      xml.ResetMainPos();
5      xml.FindElem();  //School
6      xml.IntoElem();
7     
8     while (xml.FindElem("Department"))
9      {
10          CString strTagName = _T("");
11          CString strData = _T("");
12          strTagName = xml.GetTagName();
13          strData = xml.GetData();
14          TRACE("/n---tagName:%s,Data:%s--/n",strTagName,strData);
15      }

//***********结果**************
      ---tagName:Department,Data:Automation--