一个读取和配置XML文件的例子

1、配置文件

xml version="1.0" encoding="UTF-8" ?>

- < configs >

- < HelpFile >

  < name > hdlcnet.chm name >

  HelpFile >

- < OrderTree >

  < state > 1 state >

  OrderTree >

- < Other >

  < routetestperiod > 60 routetestperiod >

  < resetwaittime > 6 resetwaittime >

  Other >

- < DataBase >

  < type > 0 type >

  < dsn > hdlcnet dsn >

  < serverip > 192.168.0.80 serverip >

  < dbservername > SQLSERVER2005 dbservername >

  < dbname > hdlcnet dbname >

  < usrname > admin usrname >

  < usrpwd />

  DataBase >

- < Proxy >

  < uiport > 12345 uiport >

  < deviceport > 1998 deviceport >

  < almsyncperiod > 300 almsyncperiod >

  < heartbeatperiod > 30 heartbeatperiod >

  Proxy >

  configs >

2//读取某一个元素的文本
// TODO: Add your control notification handler code here
    //创建一个XML的文档对象。
    TiXmlDocument *myDocument = new TiXmlDocument("config.xml");
    myDocument->LoadFile();
    //获得根元素，即configs。
    TiXmlElement *RootElement = myDocument->RootElement();
    //输出根元素名称，即输出configs。
    char * pszRootName = (char *)RootElement->Value();
    CString strRootName = pszRootName;
    //
    TiXmlElement * element = RootElement->FirstChildElement("HelpFile")->FirstChildElement("name");
    char * pszHelpName = (char *)element->GetText();
    CString strHelpName = pszHelpName;
   
    element = RootElement->FirstChildElement("DataBase")->FirstChildElement("dbservername");
    char * pszDbServerName = (char *)element->GetText();
    CString strDbServerName = pszDbServerName;

    delete myDocument;

3、修改某一元素文本
TiXmlDocument *myDocument = new TiXmlDocument("config.xml");
    myDocument->LoadFile();
   
    TiXmlNode  * node = myDocument->FirstChild("configs")->FirstChild("HelpFile")->FirstChild("name");
    char * pszNode = (char *)node->Value();
    if(!node)
    {
        ASSERT(FALSE);
        return;
    }
   
    TiXmlElement * element = node->ToElement();
    char * pszElement = (char *)element->GetText();


    if(!element)
    {
        ASSERT(FALSE);
        return;
    }
    //先清除文本
    node->Clear();
    TiXmlText * HelpFileContent = new TiXmlText("hdlcnet.chm");
    element->LinkEndChild(HelpFileContent);

    //element->ReplaceChild(node, HelpFileContent);

    myDocument->SaveFile("config.xml");
 
    //
    delete myDocument;

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