How to parse html with QWebElement?

**orkto** · 23rd December 2014, 16:50

Qt Code:

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#include <QApplication>
#include <QDebug>
#include <QWebPage>
#include <QWebFrame>
#include <QWebElement>
 
int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    QWebPage frame;
    frame.mainFrame()->setHtml("<html><body><p>First Paragraph</p><p>Second Paragraph</p></body></html>");
    QWebElement doc = frame.mainFrame()->documentElement();
    QWebElement body = doc.firstChild();
    qDebug() << body.toPlainText();
    QWebElement firstParagraph = body.firstChild();
    qDebug() << firstParagraph.toPlainText();
    QWebElement secondParagraph = firstParagraph.nextSibling();
    qDebug() << secondParagraph.toPlainText();
    return a.exec();
}

#include <QApplication>
#include <QDebug>
#include <QWebPage>
#include <QWebFrame>
#include <QWebElement>
 
int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    QWebPage frame;
    frame.mainFrame()->setHtml("<html><body><p>First Paragraph</p><p>Second Paragraph</p></body></html>");
    QWebElement doc = frame.mainFrame()->documentElement();
    QWebElement body = doc.firstChild();
    qDebug() << body.toPlainText();
    QWebElement firstParagraph = body.firstChild();
    qDebug() << firstParagraph.toPlainText();
    QWebElement secondParagraph = firstParagraph.nextSibling();
    qDebug() << secondParagraph.toPlainText();
    return a.exec();
}

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Output is :

This example is from oficial doc so why this always empty and when i use other exaples it is empty too.

**ChrisW67** · 25th December 2014, 21:33

Print the tagName() of each element and you will likely find that WebKit has provided the missing <head> element and that your "body" variable is pointing there. It has no content, so you see no output. That is what happened with Qt5.4 for me. Try:

Qt Code:

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QWebElement body = doc.findFirst("body");

QWebElement body = doc.findFirst("body");

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