如何利用curl实现form表单提交 带文件上传
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发布时间：2022-04-23 13:36
共2个回答
懂视网
时间：2022-04-30 09:29
心酸的过程我就不说了，直接上菜。
如何用Qt实现：curl -F file=@task.plist http://www.fatjb.com/uploadfile
QFile file(m_sTaskPlistPath);
if(file.exists())
{
if(!file.open(QIODevice::ReadOnly))
{
QMessageBox::warning(this, tr("Warning"), tr("打开task.plist失败！"), QMessageBox::Yes);
return;
}
QByteArray fileContent = file.readAll();
file.close();
QString sCrlf="
";
qsrand(QDateTime::currentDateTime().toTime_t());
QString b=QVariant(qrand()).toString()+QVariant(qrand()).toString()+QVariant(qrand()).toString();
QString sBoundary="---------------------------"+b;
QString sEndBoundary=sCrlf+"--"+sBoundary+"--"+sCrlf;
QString sContentType="multipart/form-data; boundary="+sBoundary;
sBoundary="--"+sBoundary+sCrlf;
QByteArray boundary=sBoundary.toAscii();
QByteArray sendData;
sendData.append(boundary);
sBoundary = sCrlf + sBoundary;
boundary = sBoundary.toAscii();
sendData.append(QString("Content-Disposition: form-data; name="file"; filename=""+QString(m_sTaskPlistPath.toUtf8().constData())+"""+sCrlf).toAscii());
sendData.append(QString("Content-Transfer-Encoding: 8bit"+sCrlf).toAscii());
sendData.append(sCrlf.toAscii());
sendData.append(fileContent);
sendData.append(sEndBoundary.toAscii());
QNetworkRequest req(QUrl(m_sAddress+m_sUploadPath));
req.setHeader(QNetworkRequest::ContentTypeHeader, sContentType.toAscii());
req.setHeader(QNetworkRequest::ContentLengthHeader, QVariant(sendData.size()).toString());
QNetworkReply* pReply = m_pManager->post(req, sendData);
connect(pReply, SIGNAL(error(QNetworkReply::NetworkError)), SLOT(NetworkError(QNetworkReply::NetworkError)));
}
else
{
QMessageBox::warning(this, tr("Warning"), tr("task.plist不存在！"), QMessageBox::Yes);
}
为什么我会知道？下个wireshark抓包，然后跟着正确包慢慢调就知道了，果然还是不能懒。
QNetworkAccessManager实现curl上传表单文件
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时间：2022-04-30 06:37
$data = array('name' => 'Foo', 'file' => '@d:/test.jpg');
注： PHP 5.5.0起，文件上传建议使用CURLFile代替@
$ch = curl_init('http://localhost/upload.php');
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
curl_exec($ch);
更多内容请参考：http://www.zjmainstay.cn/php-curl#十模拟上传文件
