How to read the xml file using QXmlStreamReader

[mythili]

Hi I am having xml file. I want to read all the Id's from <Qu Id = > and the file names inside the tag 'file'.Please help me.

My xml file is
@<Response>
<Qu Id="1">
<An_Pas>
<file>Q1P1.png</file>
<file>Q1P2.png</file>
</An_Pas>
<Ro_pas>
<file>Q1R1.png</file>
</Ro_pas>
</Qu>
<Qu Id="2">
<An_Pas>
<file>Q2P1.png</file>
</An_Pas>
<Ro_pas>
<file>Q2R1.png</file>
<file>Q2R2.png</file>
</Ro_pas>
</Qu>
</Response>@

[francescmm]

Here are some examples:

"QtForum Parsing XML document":http://www.qtforum.org/article/28453/qxmlstreamreader-parsing-a-simple-xml-document.html

"Parsing XML in Qt":http://www.developer.nokia.com/Community/Wiki/QXmlStreamReader_to_parse_XML_in_Qt

[mythili]

please help me with the code

[francescmm]

The second link has the code your are looking for. You only have to copy and change some lines for your tags.

I can help you in doubts or problems but you have to try it yourself.

[mythili]

I have tried. But I am unable to read. Please check this and make changes if any. Thank u very much
@
void MainWindow::parseXML()
{

QFile* file = new QFile(":/new/prefix1/recov.xml");
if (!file->open(QIODevice::ReadOnly | QIODevice::Text)) {
    QMessageBox::critical(this,
                          "QXSRExample::parseXML",
                          "Couldn't open example.xml",
                          QMessageBox::Ok);
    return;
}
/* QXmlStreamReader takes any QIODevice. */
QXmlStreamReader xml(file);
QList< QMap<QString,QString> > persons;
/* We'll parse the XML until we reach end of it.*/
while(!xml.atEnd() &&  !xml.hasError()) {
    /* Read next element.*/
    QXmlStreamReader::TokenType token = xml.readNext();
    /* If token is just StartDocument, we'll go to next.*/
    if(token == QXmlStreamReader::StartDocument) {
        continue;
    }
    /* If token is StartElement, we'll see if we can read it.*/
    if(token == QXmlStreamReader::StartElement) {
        /* If it's named persons, we'll go to the next.*/
        if(xml.name() == "Response") {
            continue;
        }
        /* If it's named person, we'll dig the information from there.*/
        if(xml.name() == "Qu") {
            persons.append(this->parsePerson(xml));
        }
    }
}
/* Error handling. */
if(xml.hasError()) {
    QMessageBox::critical(this,
                          "QXSRExample::parseXML",
                          xml.errorString(),
                          QMessageBox::Ok);
}
/* Removes any device() or data from the reader
 * and resets its internal state to the initial state. */
xml.clear();
this->addPersonsToUI(persons);

}

QMap<QString, QString> MainWindow::parsePerson(QXmlStreamReader& xml)
{

QMap<QString, QString> person;
/* Let's check that we're really getting a person. */
if(xml.tokenType() != QXmlStreamReader::StartElement &&
        xml.name() == "Qu") {
    return person;
}
/* Let's get the attributes for person */
QXmlStreamAttributes attributes = xml.attributes();
/* Let's check that person has id attribute. */
if(attributes.hasAttribute("Id"))
{
    /* We'll add it to the map. */
    person["Id"] = attributes.value("Id").toString();
    qDebug()<<"id:"<<person["Id"]<<endl;
}

/* Next element... */
xml.readNext();

    if(xml.name() == "An_Pas")
    {

        if(xml.name() == "file")
        {
            QString elementName = xml.text().toString();
            qDebug()<<"add:"<<elementName<<endl;
        }
        xml.readNext();

    }

return person;

}

@

[bjanuario]

What method you want to use? JSON or DOM ?

[walshmagger]

This post is deleted!