小编Bla*_*ris的帖子

在我的程序中,我需要下载一个文件,我发现了这篇文章:

http://www.java2s.com/Code/Cpp/Qt/DownloadfromURL.htm

这段代码确实有效,但它不适合我的程序,所以我重新编写了它.我还没有完成所有这些,但我已经编码了基础知识.但是,当我测试它时,会弹出一个发送错误报告窗口.

到目前为止这是我的代码:

QtDownload.h

#include <QObject>
#include <QString>
#include <QNetworkAccessManager>
#include <QNetworkReply>


class QtDownload : public QObject
{
    Q_OBJECT
public:
    explicit QtDownload();
    ~QtDownload();

    void setTarget(const QString& t);

private:
    QNetworkAccessManager manager;
    QNetworkReply* reply;
    QString target;
    void connectSignalsAndSlots();

signals:

public slots:
    void download();
    void downloadFinished(QNetworkReply* data);
    void downloadProgress(qint64 recieved, qint64 total);
};

QtDownload.cpp

#include "qtdownload.h"

#include <QUrl>
#include <QNetworkRequest>
#include <QFile>

QtDownload::QtDownload()
    : QObject(0)
{
    this->connectSignalsAndSlots();
}

QtDownload::~QtDownload()
{
    if (reply != 0)
        delete reply;
}

void QtDownload::connectSignalsAndSlots()
{
    QObject::connect(&manager, SIGNAL(finished(QNetworkReply*)),this, …