Qt QNetworkReply连接关闭

本文介绍了Qt QNetworkReply连接关闭的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我尝试在c ++中执行post方法到url https：// ... ，但我收到连接关闭错误。

我看到如果我使用 www.google.gr 的另一个网址，我的代码可以正常工作。

如果我删除端口 8181 我得到错误：服务器回复：找不到 / p>

我的代码是

static const char * REQUEST_URL =https： // ... static const char * USER =....; static const char * PASSWORD =....; MainWindow :: MainWindow（QWidget * parent）： QMainWindow（parent）， ui（new Ui :: MainWindow） { ui- > setupUi（this）; finishedexecuted = 0; QByteArray postData; postData.append（username = ...）; postData.append（password = ...）; m_network = new QNetworkAccessManager（this）; QNetworkRequest request; request.setHeader（QNetworkRequest :: ContenttypeHeader，application / json）; QUrl url = QUrl（REQUEST_URL）; request.setUrl（url）; QSslConfiguration config = request.sslConfiguration（）; QList< QSslCertificate> certs = QSslCertificate :: fromPath（pistopoiitiko.crt）; config.setCaCertificates（certs）; request.setSslConfiguration（config）; QNetworkReply * reply = m_network-> post（request，postData）; DownloadTime.start（）; QObject :: connect（reply，SIGNAL（downloadProgress（qint64，qint64））， SLOT（slotSetProgress（qint64，qint64）））; QObject :: connect（m_network，SIGNAL（finished（QNetworkReply *））， SLOT（slotRequestFinished（QNetworkReply *）））; connect（m_network， SIGNAL（sslErrors（QNetworkReply *，const QList< QSslError>&））， this， SLOT（sslError（QNetworkReply * const QList< QSslError>&）））; } void MainWindow :: sslError（QNetworkReply * reply， const QList< QSslError>& errors） {...} void MainWindow :: slotRequestFinished（QNetworkReply * reply） { ... if（reply-> error（）> 0）{ m_label-> ; setText（Error number =+ reply-> errorString（））; } ... } void MainWindow :: slotSetProgress（qint64 received，qint64 total） {...}

解决方案

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我使用此代码实现了克服此问题

QSslConfiguration config = QSslConfiguration :: defaultConfiguration config.setProtocol（QSsl :: SslV3）;

然后我收到了通过ignoresslerrors（）传递的ssl错误

I try to execute post method in c++ to a url ..., but I receive connection closed error.

I see that my code works if I use another url like www.google.gr.

If I remove the port 8181 I get error: server replied:not found.

My code is

static const char *REQUEST_URL="..."; static const char *USER = "...."; static const char *PASSWORD = "...."; MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent), ui(new Ui::MainWindow) { ui->setupUi(this); finishedexecuted=0; QByteArray postData; postData.append("username=..."); postData.append("password= ..."); m_network = new QNetworkAccessManager(this); QNetworkRequest request; request.setHeader(QNetworkRequest::ContentTypeHeader, "application/json"); QUrl url=QUrl(REQUEST_URL); request.setUrl(url); QSslConfiguration config = request.sslConfiguration(); QList<QSslCertificate> certs = QSslCertificate::fromPath("pistopoiitiko.crt"); config.setCaCertificates(certs); request.setSslConfiguration(config); QNetworkReply *reply = m_network->post(request,postData); downloadTime.start(); QObject::connect(reply, SIGNAL(downloadProgress(qint64,qint64)), SLOT(slotSetProgress(qint64,qint64))); QObject::connect(m_network, SIGNAL(finished(QNetworkReply *)), SLOT(slotRequestFinished(QNetworkReply *))); connect(m_network, SIGNAL(sslErrors(QNetworkReply *, const QList<QSslError> &)), this, SLOT(sslError(QNetworkReply*, const QList<QSslError> &))); } void MainWindow::sslError(QNetworkReply* reply, const QList<QSslError> &errors ) {...} void MainWindow::slotRequestFinished(QNetworkReply *reply) { ... if (reply->error() > 0) { m_label->setText("Error number = " + reply->errorString()); } ... } void MainWindow::slotSetProgress(qint64 received, qint64 total) {...}

Any ideas?

解决方案

i achieved to overcome this problem with this code

QSslConfiguration config = QSslConfiguration::defaultConfiguration(); config.setProtocol(QSsl::SslV3);

then i received ssl errors that i passed with ignoresslerrors()