Question

这是我的档案。我有一些问题。

   // networking.h

#ifndef NETWORKING_H
#define NETWORKING_H

#include <QNetworkReply>

class Networking
{
public:
    Networking();
    void getNetReply();
    void replyFinished(QNetworkReply*);
};

#endif // NETWORKING_H




//networking.cpp
#include "networking.h"
#include <QtNetwork/QNetworkAccessManager>
#include <QUrl>
#include <QNetworkRequest>
#include <QObject>

Networking::Networking()
{
}

void Networking::getNetReply(){
    QNetworkAccessManager * man;
    man = new QNetworkAccessManager(this);
    qDebug() << "Getting content..." << endl;

    QNetworkRequest request(QUrl("http://www.google.pl"));
    qDebug() << "Network request..." << endl;

    QNetworkReply * NetRepl;
    QObject::connect(man, SIGNAL(finished(QNetworkReply *)), this, SLOT(replyFinished(QNetworkReply*)));

    NetRepl = man->get(request);
    qDebug() << "Network reply..." << endl;

    qDebug() << "Connecting..." << endl;

}

void Networking::replyFinished(QNetworkReply* reply){
    // my code
    reply->readAll();
}

我的错误消息。我已经google了很多并阅读了文档：

错误：没有匹配函数来调用'QNetworkAccessManager :: QNetworkAccessManager（Networking * const）' man = new QNetworkAccessManager（this）; ^

20：错误：没有匹配函数来调用'QObject :: connect（QNetworkAccessManager *＆amp;，const char *，Networking * const，const char *）' QObject :: connect（man，SIGNAL（已完成（QNetworkReply ）），这个，SLOT（replyFinished（QNetworkReply ）））; ^

Answer 1

在没有Q_OBJECT

的情况下向您的班级添加;宏

class Networking : public QObject
{
Q_OBJECT
public:
    Networking();
    void getNetReply();

重建所有项目

如果没有此宏moc无法找到您的课程，您就无法使用信号/插槽机制。此外，您的类应该显式或隐式地从QObject派生。

错误：没有匹配函数来调用＆＃39; QNetworkAccessManager :: QNetworkAccessManager（Networking * const）＆＃39;

1 个答案: