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我目前一个Qt项目中使用QHttpMultiPart，但它似乎对我的最终的一些问题？QHttpMultiPart发送“1” POST请求的结果
我都跟着榜样，用下面的代码上来：
#include "uploader.h"
#include <QFileInfo>
#include <QMimeDatabase>
#include <QHttpMultiPart>
#include <QNetworkReply>
#include <QDebug>
/**
* @brief Uploader::Uploader
* @param parent
*/
Uploader::Uploader(QObject *parent) :
QObject(parent)
{
uploadInProgress = false;
}
/**
* @brief Uploader::upload
* @param absoluteFilePath
*/
void Uploader::upload(QString absoluteFilePath)
{
qDebug() << "Upload Starting";
QFileInfo fileInfo(absoluteFilePath);
QHttpMultiPart *multiPart = new QHttpMultiPart(QHttpMultiPart::FormDataType);
//action part
QHttpPart textPart;
textPart.setHeader(QNetworkRequest::ContentDispositionHeader, QVariant("form-data; name=\"cmd\""));
textPart.setBody(QString("wFile").toLatin1());
//File Path
QHttpPart filePathPart;
filePathPart.setHeader(QNetworkRequest::ContentDispositionHeader, QVariant("form-data; name=\"file_path\""));
filePathPart.setBody(absoluteFilePath.toLatin1());
//filepart
QHttpPart filePart;
QMimeDatabase db;
QMimeType mime = db.mimeTypeForFile(absoluteFilePath);
filePart.setHeader(QNetworkRequest::ContentTypeHeader, QVariant(mime.name()));
filePart.setHeader(QNetworkRequest::ContentDispositionHeader, QVariant("form-data; name=\"preview_file\"; filename=\""+ fileInfo.baseName() + "\""));
QFile *file = new QFile(absoluteFilePath);
if (!file->exists())
{
qDebug() << "File Does not exist";
}
file->open(QIODevice::ReadOnly);
filePart.setBodyDevice(file);
file->setParent(multiPart); // we cannot delete the file now, so delete it with the multiPart
multiPart->append(textPart);
multiPart->append(filePathPart);
multiPart->append(filePart);
QUrl url("http://project.dbz.dev/index.php?controller=wapi&action=handle");
QNetworkRequest request(url);
pManager = new QNetworkAccessManager();
pReply = pManager->post(request, multiPart);
multiPart->setParent(pReply);
connect(pReply, SIGNAL(uploadProgress(qint64,qint64)),this,SLOT(uploadProgress(qint64,qint64)));
connect(pReply, SIGNAL(error(QNetworkReply::NetworkError)), this, SLOT(onError(QNetworkReply::NetworkError)));
connect(pReply, SIGNAL(finished()),this, SLOT(uploadFinished()));
// here connect signals etc.
uploadInProgress = true;
}
/**
* @brief Uploader::uploadFinished
*/
void Uploader::uploadFinished()
{
QString data = (QString) pReply->readAll();
qDebug() << data;
qDebug() << "Upload finished";
uploadInProgress = false;
if (pReply->error() > 0)
{
qDebug() << "Error occured: " << pReply->error() << " : " << pReply->errorString();
}
else
{
qDebug() << "Upload success";
}
delete pReply;
}
void Uploader::uploadProgress(qint64 a, qint64 b)
{
qDebug() << " SOME PROGRESS!";
qDebug() << a << "/" << b;
}
void Uploader::onError(QNetworkReply::NetworkError err)
{
qDebug() << " SOME ERROR!";
qDebug() << err;
}
可悲的是，没有一个时隙被从信号触发。我也无法在本地以太网适配器上看到使用wireshark发送的软件包。 然而，我的Apache确实得到一个请求：
192.168.178.21 - - [21/Sep/2013:05:10:41 +0200] "POST /index.php?controller=wapi&action=handle HTTP/1.1" 200 166 "-" "Mozilla/5.0"
而在我的PHP应用程序，我有以下结果：
Application_Controller_WapiController::handleAction: Command: wFile
Application_Controller_WapiController::wFile: POST Request: 1
这基本上意味着，它承认参数“CMD”和值“wFile”，打开相应的PHP动作，然后执行一个print_r($_POST)，它只显示了一个简单的1.
我不知道该怎么做。我在网上无处不在，似乎无法弄清楚。我跟随了官方纪录片上的所有例子和描述，并在SO上发现了一些线索。似乎有与QHttpMultiPart类的错误，虽然它被固定在主要5.0.0更新。
TL;博士：
connect(pReply, SIGNAL(uploadProgress(qint64,qint64)),this,SLOT(uploadProgress(qint64,qint64)));
connect(pReply, SIGNAL(error(QNetworkReply::NetworkError)), this, SLOT(onError(QNetworkReply::NetworkError)));
connect(pReply, SIGNAL(finished()),this, SLOT(uploadFinished()));
这些信号没有被触发，PHP的print_r显示我1，我无法跟踪我的机器上的POST请求。
这将是很好，如果有人能告诉我为什么信号不发射，更重要的是如何，我可以看到在我的C++应用程序我POST请求的最终版本在发送前。
非常感谢！我感谢任何帮助！