我在Qt 5工作并且正在努力进行分段上传。我的脚本尽可能接近docs:
QUrl testUrl("http://localhost/upload/test.php");
QNetworkRequest request(testUrl);
QHttpMultiPart *multiPart = new QHttpMultiPart(QHttpMultiPart::FormDataType);
QString preview_path = "C:/preview.jpg";
QHttpPart previewPathPart;
previewPathPart.setHeader(QNetworkRequest::ContentDispositionHeader, QVariant("form-data; name=\"preview_path\""));
previewPathPart.setBody(preview_path.toLatin1());
QHttpPart previewFilePart;
previewFilePart.setHeader(QNetworkRequest::ContentTypeHeader, QVariant( "image/jpeg"));
previewFilePart.setHeader(QNetworkRequest::ContentDispositionHeader, QVariant("form-data; name=\"preview_file\""));
QFile *file = new QFile(preview_path);
if (!file->exists()) {
emit error(tr("Upload Error. File does not exist: ") + preview_path);
return;
}
file->open(QIODevice::ReadOnly);
previewFilePart.setBodyDevice(file);
file->setParent(multiPart); // we cannot delete the file now, so delete it with the multiPart
multiPart->append(previewPathPart);
multiPart->append(previewFilePart);
reply = networkManager->post(request, multiPart);
multiPart->setParent(reply); // delete the multiPart with the reply
connect(reply, SIGNAL(finished()),
this, SLOT (uploadReply()));
connect(reply, SIGNAL(error(QNetworkReply::NetworkError)),
this, SLOT (uploadError(QNetworkReply::NetworkError)));
connect(reply, SIGNAL(uploadProgress(qint64, qint64)),
this, SLOT (uploadProgress(qint64, qint64)));
然后我的uploadReply()插槽只打印回复:
QString data = (QString) reply->readAll();
qDebug() << data;
我已经使上传脚本尽可能简单,并在XAMPP中使用Apache / 2.2.21和PHP 5.3.8运行。我的upload_max_filesize和post_max_size是1000M。
echo "preview_path: " . (isset($_POST['preview_path']) ? $_POST['preview_path'] : "not set") . "\r\n";
echo "preview_file exists: " . (isset($_POST['preview_file']) ? "true" : "false" ). "\r\n";
echo '$_FILES: ';
print_r($_FILES);
echo "preview_file content: " . $_POST['preview_file'];
我的进度插槽显示了大致正确的上传字节数。
但输出显示:
preview_path: C:/preview.jpg
preview_file exists: true
$_FILES: Array
(
)
preview_file content: ????
看起来这些字节是作为$ _POST变量而不是$ _FILE提交的,因为它们应该是? apache日志中没有错误。我该怎么调试呢?
答案 0 :(得分:8)
解决!
感谢this question提示 - 我在QHttpPart的内容处理中添加了'filename',现在按预期上传。我认为文件名是可选的,但似乎在这种情况下工作。希望这有助于其他人!
QString preview_name = "preview.jpg";
QHttpPart previewFilePart;
previewFilePart.setHeader(QNetworkRequest::ContentTypeHeader, QVariant("image/jpeg"));
previewFilePart.setHeader(QNetworkRequest::ContentDispositionHeader, QVariant("form-data; name=\"preview_file\"; filename=\""+ preview_name + "\""));