我不是 PHP 专家,但我发现没有必要使用内容类型 application/json,因为 multipart(提交表单)不是该协议的一部分。另一方面,我找不到参考资料vardump_toerror
功能所以我改变var_dump
所以我的测试 php 是:
<?php
var_dump($_FILES);
?>
In a 上一个问题 https://stackoverflow.com/questions/55129643/pyqt5-and-django-how-to-upload-image-using-http-request-multipart-form/55132547#55132547对于 PyQt5,我为 django 实现了类似的逻辑,该逻辑也适用于本例,因此我将展示翻译。
#include <QCoreApplication>
#include <QFile>
#include <QHttpMultiPart>
#include <QNetworkAccessManager>
#include <QNetworkReply>
#include <QTextCodec>
QHttpMultiPart *buildMultpart(const QVariantMap & data, const QMap<QString, QString> filenames){
QHttpMultiPart *multipart = new QHttpMultiPart(QHttpMultiPart::FormDataType);
QVariantMap::const_iterator i_data = data.constBegin();
while (i_data != data.constEnd()) {
QHttpPart postpart;
postpart.setHeader(QNetworkRequest::ContentDispositionHeader, QString("form-data; name=\"%1\"").arg(i_data.key()));
postpart.setBody(i_data.value().toByteArray());
multipart->append(postpart);
++i_data;
}
QMap<QString, QString>::const_iterator i_filenames = filenames.constBegin();
while (i_filenames != filenames.constEnd()) {
QFile *file = new QFile(i_filenames.value());
if(!file->open(QIODevice::ReadOnly)){
delete file;
continue;
}
QHttpPart postpart;
postpart.setHeader(QNetworkRequest::ContentDispositionHeader,
QString("form-data; name=\"%1\"; filename=\"%2\"")
.arg(i_filenames.key(), file->fileName()));
postpart.setBodyDevice(file);
multipart->append(postpart);
file->setParent(multipart);
++i_filenames;
}
return multipart;
}
int main(int argc, char *argv[])
{
QCoreApplication a(argc, argv);
QUrl url("http://localhost:4000/upload.php");
QNetworkAccessManager manager;
QMap<QString, QString> filenames;
filenames["fileToUpload"] = "/path/of/data.txt";
QHttpMultiPart *multipart = buildMultpart({}, filenames);
QNetworkRequest request(url);
QNetworkReply *reply = manager.post(request, multipart);
multipart->setParent(reply);
QObject::connect(reply, &QNetworkReply::finished, QCoreApplication::quit);
a.exec();
if(reply->error() == QNetworkReply::NoError){
qDebug() << reply->readAll();
}
else{
qDebug() << reply->error() << reply->errorString();
}
delete reply;
return 0;
}
Output:
"array(1) {\n [\"fileToUpload\"]=>\n array(5) {\n [\"name\"]=>\n string(8) \"data.txt\"\n [\"type\"]=>\n string(0) \"\"\n [\"tmp_name\"]=>\n string(14) \"/tmp/phpVmOAhO\"\n [\"error\"]=>\n int(0)\n [\"size\"]=>\n int(6)\n }\n}\n"