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儘管沒有任何請求數據包命中我的服務器，但我的代碼中沒有錯誤。我運行tcpdump端口80並沒有任何東西穿過電線，wireshark說同樣的。基本QNetworkAccessManager無法發送請求
//coreeng.h
#ifndef COREENG_H
#define COREENG_H
#include <QObject>
#include <QNetworkAccessManager>
class coreEng : public QObject
{
Q_OBJECT
public:
private slots:
public slots:
void connect();
void url();
void finishedSlot(QNetworkReply* reply);
private:
QNetworkAccessManager* nam;
};
#endif // COREENG_H
//coreengine.cpp
#include "coreeng.h"
#include <QNetworkAccessManager>
#include <QUrl>
#include <QNetworkRequest>
#include <QNetworkReply>
#include <QImageReader>
coreEng::coreEng(QObject *parent) :
QObject(parent)
{
}
explicit coreEng(QObject *parent = 0)
{
nam = new QNetworkAccessManager();
}
void coreEng::connect(){
QObject::connect(nam, SIGNAL(finished(QNetworkReply*)),
this, SLOT(finishedSlot(QNetworkReply*)));
}
void coreEng::url(){
QUrl url("http://www.myserver.com");
QNetworkReply* reply = nam->get(QNetworkRequest(url));
}
void coreEng::finishedSlot(QNetworkReply* reply){
QVariant statusCodeV = reply->attribute(QNetworkRequest::HttpStatusCodeAttribute);
QVariant redirectionTargetUrl = reply->attribute(QNetworkRequest::RedirectionTargetAttribute);
if (reply->error() == QNetworkReply::NoError)
{
QImageReader imageReader(reply);
QImage pic = imageReader.read();
QByteArray bytes = reply->readAll(); // bytes
QString string(bytes); // string
}
else
{
}
delete reply();
}
//main.cpp
#include <QCoreApplication>
#include "coreeng.h"
int main(int argc, char *argv[])
{
QCoreApplication a(argc, argv);
coreEng mConnect;
mConnect.connect();
return a.exec();
}