我有一个有趣的问题...我正在尝试编写的程序会崩溃,显示以下错误:
QObject::startTimer: QTimer can only be used with threads started with QThread
让我困惑的是,我的程序是单线程的。这个类的目标是将POST数据发送到我服务器上的php页面。一旦它试图发送POST,我就会收到那个消息。这是我的代码。
#ifndef TRANSMISSIONS_H
#define TRANSMISSIONS_H
#include "name_spawn.h"
#include <QNetworkReply>
#include <QObject>
#include <QNetworkConfigurationManager>
class Transmissions : public QObject
{
Q_OBJECT
public:
Transmissions();
void Send(GeneratedData);
public slots:
void serviceRequestFinished(QNetworkReply*);
signals:
void configurationAdded(const QNetworkConfiguration);
void configurationChanged(const QNetworkConfiguration);
void configurationRemoved(const QNetworkConfiguration);
void onlineStateChanged(bool);
void updateCompleted();
};
#endif // TRANSMISSIONS_H
And
#include "transmissions.h"
#include "name_spawn.h"
#include <QHttp>
#include <QUrl>
#include <QString>
#include <QNetworkReply>
#include <QNetworkRequest>
#include <iostream>
#include <QNetworkAccessManager>
#include <QNetworkConfigurationManager>
#include <QObject>
using namespace std;
Transmissions::Transmissions()
{
}
void Transmissions::Send(GeneratedData User)
{
cerr<<"transmitting"<<endl;
QUrl serviceUrl = QUrl("http://192.168.1.138/postTest.php");
QByteArray postData;
QString username="user="+User.Email()+"&";
QString Passwd="password="+User.pass();
postData.append(username);
postData.append(Passwd);
QNetworkAccessManager *networkManager = new QNetworkAccessManager(this);
connect(networkManager, SIGNAL(finished(QNetworkReply*)), this, SLOT(serviceRequestFinished(QNetworkReply*)));
networkManager->post(QNetworkRequest(serviceUrl), postData);
}
void Transmissions::serviceRequestFinished(QNetworkReply *reply)
{
//this will do other things once post is working
QString data = reply->readAll();
cerr <<"Data is "<< data.toStdString()<<endl;
}
我认为我想做的事情相当简单,但尝试让它工作起来却令我非常沮丧。我在文档中没有看到QNetworkAccessManager需要线程的任何说明。我承认我对Qt不是很了解,所以任何帮助(或链接到完整的POST示例)都将不胜感激。