关于QNetworkAccessManager的get重复发消息的问题

sxy1993sxy2018 2020-10-12 07:36:44

调用用QNetworkAccessManager的get方法一次，抓包的时候发现重复发了两次相同的请求，有谁知道怎么回事吗？

# 测试代码



#include <QCoreApplication>

#include <QTcpSocket>

#include <QTcpServer>

#include <QDebug>

#include <QNetworkAccessManager>

#include <QNetworkReply>

#include <QNetworkRequest>

#include <QTimer>

#include <QEventLoop>

#include <unistd.h>





int main(int argc, char *argv[])

{

  QCoreApplication a(argc, argv);





  QNetworkAccessManager accessManager;

  QNetworkRequest request;

//  QUrl url("http://192.168.1.170");

  QUrl url("http://root:admin@192.168.1.170/cgi-bin/UVSSapi.cgi?{\"cmd\":\"get\",\"key\":\"server ip\"}");

  request.setUrl(url);



  QNetworkReply* reply = accessManager.get(request);  //通过发送数据，返回值保存在reply指针里.



  QTimer _timer;

  QEventLoop _event_loop;

  QObject::connect(&_timer, SIGNAL(timeout()), &_event_loop, SLOT(quit()));

  QObject::connect(&accessManager, SIGNAL(finished(QNetworkReply*)), &_event_loop, SLOT(quit()));

  _timer.setSingleShot(true);

  _timer.start(5 * 1000);

  _event_loop.exec();



  QByteArray response = reply->readAll();

  qDebug()<<"response"<<response;





  return a.exec();

}