QT制作http上传小软件

1，主界面

2，代码部分

#include "mainwindow.h"

#include "ui_mainwindow.h"

#include    

#include    

#include    

 
 
MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow)
{
    ui->setupUi(this);
    ui->editURL->setClearButtonEnabled(true);
}
 
MainWindow::~MainWindow()
{
    delete ui;
}
 
void MainWindow::on_finished()
{// 络响应结束

    QFileInfo fileInfo;
    fileInfo.setFile(downloadedFile->fileName());
 
    downloadedFile->close();
    delete downloadedFile;
    downloadedFile = Q_NULLPTR;
 
    reply->deleteLater(); //

    reply = Q_NULLPTR;
 
    if (ui->checkOpen->isChecked())//打开下载的文件

        QDesktopServices::openUrl(QUrl::fromLocalFile(fileInfo.absoluteFilePath()));
 
    ui->btnDownload->setEnabled(true);
}
 
void MainWindow::on_readyRead()
{//读取下载的数据

    downloadedFile->write(reply->readAll());
}
 
void MainWindow::on_downloadProgress(qint64 bytesRead, qint64 totalBytes)
{//下载进程

    ui->progressBar->setMaximum(totalBytes);
    ui->progressBar->setValue(bytesRead);
}
 
void MainWindow::on_btnDefaultPath_clicked()
{//缺省路径  按钮

    QString  curPath=QDir::currentPath();
    QDir    dir(curPath);
 
    QString  sub="temp";
    dir.mkdir(sub);
 
    ui->editPath->setText(curPath+"/"+sub+"/");
}
 
void MainWindow::on_btnDownload_clicked()
{//开始下载 按钮

    QString urlSpec = ui->editURL->text().trimmed();
    if (urlSpec.isEmpty())
    {
        QMessageBox::information(this, u8"错误",
          u8"请指定需要下载的URL");
        return;
    }
 
    QUrl newUrl = QUrl::fromUserInput(urlSpec);//URL地址

    if (!newUrl.isValid())
    {
        QMessageBox::information(this, u8"错误",
          QString(u8"无效URL: %1 n 错误信息: %2").arg(urlSpec, newUrl.errorString()));
        return;
    }
 
    QString tempDir =ui->editPath->text().trimmed();//临时目录

    if (tempDir.isEmpty())
    {
        QMessageBox::information(this, tr("错误"), u8"请指定保存下载文件的目录");
        return;
    }
 
    QString fullFileName =tempDir+newUrl.fileName(); //文件名


                                                        
声明：本站部分文章及图片源自用户投稿，如本站任何资料有侵权请您尽早请联系jinwei@zod.com.cn进行处理,非常感谢！