本文整理汇总了C++中QNetworkSession::errorString方法的典型用法代码示例。如果您正苦于以下问题：C++ QNetworkSession::errorString方法的具体用法？C++ QNetworkSession::errorString怎么用？C++ QNetworkSession::errorString使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类QNetworkSession的用法示例。
在下文中一共展示了QNetworkSession::errorString方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: main
int main(int argc, char**argv)
{
QCoreApplication app(argc, argv);
#ifdef Q_OS_SYMBIAN
QNetworkConfigurationManager configurationManager;
QNetworkConfiguration configuration = configurationManager.defaultConfiguration();
if (!configuration.isValid()) {
qDebug() << "Got an invalid session configuration";
exit(1);
}
qDebug() << "Opening session...";
QNetworkSession *session = new QNetworkSession(configuration);
// Does not work:
// session->open();
// session->waitForOpened();
// works:
QEventLoop loop;
QObject::connect(session, SIGNAL(opened()), &loop, SLOT(quit()), Qt::QueuedConnection);
QMetaObject::invokeMethod(session, "open", Qt::QueuedConnection);
loop.exec();
if (session->isOpen()) {
qDebug() << "session opened";
} else {
qDebug() << "session could not be opened -" << session->errorString();
exit(1);
}
#endif
// create it
QAbstractSocketEngine *socketEngine =
QAbstractSocketEngine::createSocketEngine(QAbstractSocket::TcpSocket, QNetworkProxy(QNetworkProxy::NoProxy), 0);
if (!socketEngine) {
qDebug() << "could not create engine";
exit(1);
}
// initialize it
bool initialized = socketEngine->initialize(QAbstractSocket::TcpSocket, QAbstractSocket::IPv4Protocol);
if (!initialized) {
qDebug() << "not able to initialize engine";
exit(1);
}
// wait for connected
int r = socketEngine->connectToHost(QHostAddress("74.125.77.99"), 80); // google
bool readyToRead = false;
bool readyToWrite = false;
socketEngine->waitForReadOrWrite(&readyToRead, &readyToWrite, true, true, 10*1000);
if (r <= 0) //timeout or error
exit(1);
if (readyToWrite) {
// write the request
QByteArray request("GET /robots.txt HTTP/1.0\r\n\r\n");
int ret = socketEngine->write(request.constData(), request.length());
if (ret == request.length()) {
// read the response in a loop
do {
bool waitReadResult = socketEngine->waitForRead(10*1000);
int available = socketEngine->bytesAvailable();
if (waitReadResult == true && available == 0) {
// disconnected
exit(0);
}
bzero(buf, bufsize);
ret = socketEngine->read(buf, available);
if (ret > 0) {
#ifdef Q_OS_SYMBIAN
qDebug() << buf; //printf goes only to screen, this goes to remote debug channel
#else
printf("%s", buf);
#endif
} else {
// some failure when reading
exit(1);
}
} while (1);
} else {
qDebug() << "failed writing";
}
} else {
qDebug() << "failed connecting";
}
delete socketEngine;
}