QWebPage，获取mime类型

class TestClass: public QObject
{
    Q_OBJECT
public:
    TestClass();
    void run();

public slots:
    void ready(QNetworkReply * response);

protected:
    QNetworkAccessManager * manager;
};


TestClass::TestClass()
{
    manager = new QNetworkAccessManager(this);

    this->connect(manager, SIGNAL(finished(QNetworkReply*)), this, SLOT(ready(QNetworkReply*)));
}

void TestClass::run()
{
    QUrl url(\"http://www.widefido.com/\");

    manager->head(QNetworkRequest(url));
}

void TestClass::ready(QNetworkReply * response)
{
    QVariant contentMimeType = response->header(QNetworkRequest::ContentTypeHeader);

    qDebug() << contentMimeType;
}