QT 下载文件解析XML

  #include "readxml.h"

#include "ui_readxml.h"

#include <QXmlStreamReader>

#include <QMessageBox>

#include<QFile>

#include <qt4/QtXml/qdom.h>

#include <HttpGet.h>

#include <QUrl>

ReadXml::ReadXml(QWidget *parent) :

    QDialog(parent),

    ui(new Ui::ReadXml)

{

    ui->setupUi(this);

}

ReadXml::~ReadXml()

{

    delete ui;

}

void ReadXml::on_readXml_clicked()

{

    QDomDocument doc("mydocument");

        QFile file("configfilepath_temp.xml");

    if (!file.open(QIODevice::ReadOnly))

             return;

    if (!doc.setContent(&file))

    {

    //file.close();

            // return;

    }

    file.close();

    QDomElement docElem = doc.documentElement();

    //QDomNodeList nodeList = docElem.elementsByTagName("Proxy").at(0).toElement().elementsByTagName("ProxyTypes").at(0).toElement().elementsByTagName("Type");

    QDomNodeList nodeList = docElem.elementsByTagName("Section").at(1).toElement().elementsByTagName("Key");

    if (nodeList.count() > 0)

    {  HttpGet getter;

       for(int iDx = 0;iDx < nodeList.count(); iDx++)

           {

                 bool bOk = false;

                 //int iD = nodeList.at(iDx).attributes().namedItem("Enc").nodeValue().toInt(&bOk,10);

                 QString Type(nodeList.at(iDx).attributes().namedItem("Value").nodeValue());

                ui->comboBox->addItem(Type,iDx);

                getter.downloadFile(QUrl(Type));

                 QObject::connect(&getter, SIGNAL(finished()),  SLOT(quit()));

           }

    }

}

void ReadXml::on_downXml_clicked()

{

    HttpGet getter;

       getter.downloadFile(QUrl("http://dev.pubds.com/configFile/2/4/configfilepath_temp.xml"));

        QObject::connect(&getter, SIGNAL(finished()),  SLOT(quit()));

               /*QHttp *http;

                http=new QHttp();

                QUrl *url=new QUrl("http://hi.baidu.com/sdink/blog/item/6178ccb77650bcc537d3ca68.html"); // this can download

                QFileInfo fileinfo(url->path());

                QFile *file = new QFile(fileinfo.fileName());

                file->open(QIODevice::WriteOnly);

                http->setHost(url->host(),80);

                int httpGetId=http->get(url->path(),file);

                QString errore=http->readAll();

               ui->textEdit->setText(errore);

                qDebug() << httpGetId;

                http->closeConnection();

                file->close();*/

}