不是单个文件,是多个
时间: 2024-02-27 21:52:58 浏览: 16
如果需要上传多个文件,可以通过循环添加多个文件上传部分来实现。下面是一个示例代码,用于上传多个文件和JSON数据到Django后端:
```cpp
QNetworkAccessManager *manager = new QNetworkAccessManager(this);
// 创建HTTP请求对象
QNetworkRequest request(QUrl("http://localhost:8000/api/upload/"));
request.setHeader(QNetworkRequest::ContentTypeHeader, "multipart/form-data");
// 创建多部分HTTP请求
QHttpMultiPart *multiPart = new QHttpMultiPart(QHttpMultiPart::FormDataType);
// 添加JSON数据上传部分
QHttpPart jsonPart;
jsonPart.setHeader(QNetworkRequest::ContentDispositionHeader, QVariant("form-data; name=\"json\""));
jsonPart.setBody("{\"name\": \"John\", \"age\": 30}".toUtf8());
multiPart->append(jsonPart);
// 添加文件上传部分
QStringList fileList;
fileList << "file1.txt" << "file2.txt" << "file3.txt";
for (int i = 0; i < fileList.size(); i++) {
QHttpPart filePart;
filePart.setHeader(QNetworkRequest::ContentDispositionHeader, QVariant(QString("form-data; name=\"file%d\"; filename=\"%s\"").arg(i+1).arg(fileList.at(i))));
QFile *file = new QFile(fileList.at(i));
file->open(QIODevice::ReadOnly);
filePart.setBodyDevice(file);
file->setParent(multiPart);
multiPart->append(filePart);
}
// 发送HTTP请求
QNetworkReply *reply = manager->post(request, multiPart);
multiPart->setParent(reply);
// 接收HTTP响应
connect(reply, &QNetworkReply::finished, this, [=]() {
if (reply->error() == QNetworkReply::NoError) {
qDebug() << "Upload success";
} else {
qDebug() << "Upload failed:" << reply->errorString();
}
reply->deleteLater();
});
```
在Django后端的处理方式和之前的示例代码类似,只需要在视图函数中循环获取上传的文件即可。