读取XML配置

本文主要是介绍读取XML配置，对大家解决编程问题具有一定的参考价值，需要的程序猿们随着小编来一起学习吧！

#include <QtXml>

private:

    const QString CONFIG_PATH = "./config.xml";

    const QString UDP_STR = "udp";

    const QString TCP_STR = "tcp";

    const QString SQL_STR = "sql";

    const QString PACK_STR = "package";

    const QString MULT_IP = "multicastIp";

    const QString PORT = "port";

    const QString LOCAL_IP = "localIp";

    const QString LOCAL_PORT = "localPort";

    const QString dbIp = "dbIp";

    const QString userName="userName";

    const QString Password="Password";

    const QString dbName="dbName";

    QByteArray _onePackage; //一个整包数据

    QUdpSocket _multicastUdp;

    QHostAddress localIp;

    uint localPort;

    uint _port;

    QHostAddress _multIp;

    QDomElement _packElement;

    QString dbip,username,password,dbname;

 void NetworkRcv::_initConfig()

{

    QDomDocument doc;

    QDomElement root; 

    QFile file(CONFIG_PATH);

    if(file.open(QFile::ReadOnly)){

        if(doc.setContent(&file)){

            root = doc.documentElement();

        }

        file.close();

    }

    for(int i=0;i<root.childNodes().size();i++){

        QDomElement secondElement = root.childNodes().at(i).toElement();

        if(secondElement.tagName() == UDP_STR)

        {

            _multIp = QHostAddress(secondElement.attribute(MULT_IP, ""));//组网地址

            _port = secondElement.attribute(PORT, "").toInt();//组网端口

            localIp = QHostAddress(secondElement.attribute(LOCAL_IP, ""));

            localPort = secondElement.attribute(LOCAL_PORT, "").toInt();

        }

        else if(secondElement.tagName()== SQL_STR)

        {

            dbip =  secondElement.attribute(dbIp, "");

            username= secondElement.attribute(userName, "");

            password= secondElement.attribute(Password, "");

            dbname =secondElement.attribute(dbName, "");

        }

    }

}

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