LIBS += -L"D:/OpenSSL-Win32/lib" -llibeay32 

LIBS += -L"D:/OpenSSL-Win32/lib" -lssleay32

INCLUDEPATH += $$quote(D:/OpenSSL-Win32/include)

可以測試ssl是否配置成功或者查看ssl的錯誤提示。

#include <QSslSocket>

qDebug() <<"ssl:" << QSslSocket::sslLibraryBuildVersionString();

2.4 編寫程序

這裏不必要的業務邏輯就不在寫了，主要放上https請求的代碼，著重關註和http請求的不同點。

bool MainWindow::SendHttp()

{

    /*QNetworkAccessManager *manager = new QNetworkAccessManager(this);

    qDebug() << manager->supportedSchemes();*/

    qDebug() <<"ssl:" << QSslSocket::sslLibraryBuildVersionString();

    QNetworkRequest request;

    QSslConfiguration config;

    QNetworkProxy proxy;

    proxy.setType(QNetworkProxy::HttpProxy);

    proxy.setHostName("127.0.0.1");

    proxy.setPort(8080);

    QNetworkProxy::setApplicationProxy(proxy);

	//url

	request.setUrl(QUrl(strWww));

    QSslConfiguration conf = request.sslConfiguration();

    config.setPeerVerifyMode(QSslSocket::VerifyNone);

    config.setProtocol(QSsl::TlsV1_0);

    request.setSslConfiguration(config);

    //header

    auto it = m_headerMap.begin();

    while(it != m_headerMap.end())

    {

        //qDebug() << it->second.m_skey.toLatin1() << it->second.m_sval.toLatin1() << ‘\n‘;

        request.setRawHeader(it->second.m_skey.toLatin1(), it->second.m_sval.toLatin1());

        ++it;

    }

    //nam

    QNetworkAccessManager qnam;

	qDebug() << qnam.supportedSchemes();

    // 開啟一個局部的事件循環，等待響應結束，退出

    QEventLoop loop;

    QTimer timer;

    //發出請求

    QNetworkReply *reply = qnam.get(request);

    QObject::connect(&qnam,SIGNAL(finished(QNetworkReply *)),&loop,SLOT(quit()));

    //請求結束並下載完成後，退出子事件循環

    QObject::connect(reply, SIGNAL(finished()), &loop, SLOT(quit()));

    //超時退出

    QObject::connect(&timer,SIGNAL(timeout()),&loop,SLOT(quit()));

    //超時設置5秒鐘

    timer.start(5000);

    //開啟子事件循環

    loop.exec();

    //....

    if (reply->error() == QNetworkReply::NoError)

    {

        QVariant statusCodeV =

            reply->attribute(QNetworkRequest::HttpStatusCodeAttribute);

       if(statusCodeV.toInt() == 200

                                    /*這裏寫了這個readAll(),

                                     * 下面readAll()就取不出數據了

                                     * && !reply->readAll().isEmpty()

                                     */

        )

        {

           //寫入文件

           std::ofstream ofile;

           ofile.open("test.txt");

           if(ofile.fail())

           {

                qDebug() << "error ofile" << ‘\n‘;

           }

           //reply->readAll().isEmpty()

           ofile << reply->readAll().toStdString();

           ofile.flush();

           ofile.close();

        }

    }

	return true;

}