QT    同步下载

#include
#include
#include
#include
#include
using namespace std ;
class TT : public QObject
{
Q_OBJECT
public:
static QString getHtml(QString url)
{
QNetworkAccessManager *manager = new QNetworkAccessManager();
QNetworkReply *reply = manager->get(QNetworkRequest(QUrl(url)));
QByteArray responseData;
QEventLoop eventLoop;
connect(manager, SIGNAL(finished(QNetworkReply*)), &eventLoop, SLOT(quit()));
eventLoop.exec(); //block until finish
responseData = reply->readAll();
return QString(responseData);
}
};

int main(int argc, char *argv[])
{
QCoreApplication a(argc, argv);
QString data = TT::getHtml(QString("http://outofmemory.cn );
cout<<data.toStdString()<<endl;
return a.exec();
}