QSslSocket 无法解析和权限被拒绝错误

Question

错误信息如下：

qt.network.ssl: QSslSocket: cannot resolve TLSv1_1_client_method

qt.network.ssl: QSslSocket: cannot resolve TLSv1_2_client_method

qt.network.ssl: QSslSocket: cannot resolve TLSv1_1_server_method

qt.network.ssl: QSslSocket: cannot resolve TLSv1_2_server_method

qt.network.ssl: QSslSocket: cannot resolve SSL_select_next_proto

qt.network.ssl: QSslSocket: cannot resolve SSL_CTX_set_next_proto_select_cb

qt.network.ssl: QSslSocket: cannot resolve SSL_get0_next_proto_negotiated

qt.network.ssl: QSslSocket: cannot resolve SSL_set_alpn_protos

qt.network.ssl: QSslSocket: cannot resolve SSL_CTX_set_alpn_select_cb

qt.network.ssl: QSslSocket: cannot resolve SSL_get0_alpn_selected

我运行一台Windows7机器，我的D盘安装了openssl 1.1.0。我正在使用 Qt5.9.0

我的 .pro 文件

QT += core network
QT -= gui

CONFIG += c++11 console
CONFIG -= app_bundle

# The following define makes your compiler emit warnings if you use
# any feature of Qt which as been marked deprecated (the exact warnings
# depend on your compiler). Please consult the documentation of the
# deprecated API in order to know how to port your code away from it.
DEFINES += QT_DEPRECATED_WARNINGS

# You can also make your code fail to compile if you use deprecated APIs.
# In order to do so, uncomment the following line.
# You can also select to disable deprecated APIs only up to a certain version of Qt.
#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0

SOURCES += main.cpp \
    server.cpp \
    commands.cpp \
    packet.cpp

HEADERS += \
    server.h \
    commands.h \
    packet.h

INCLUDEPATH += D:\OpenSSL-Win32\include\openssl
INCLUDEPATH += D:\OpenSSL-Win32\bin
LIBS += -L D:\OpenSSL-Win32\lib -llibcrypto
LIBS += -L D:\OpenSSL-Win32\lib -llibssl

这是触发错误的代码：

QString Commands::getPublicIp()
{

    QString temp;

    QNetworkAccessManager networkManager;
    QUrl url("http://api.ipify.org");

    QString query = "format=json";

    url.setQuery(query);

    QNetworkReply* reply = networkManager.get(QNetworkRequest(url));

    QObject::connect(
                reply
                , &QNetworkReply::finished
                , [&](){

                        if(reply->error() != QNetworkReply::NoError) {
                            return QString();
                        } else {
                                QJsonObject jsonObject= QJsonDocument::fromJson(reply->readAll()).object();
                                QHostAddress ip(jsonObject["ip"].toString());

                                temp = QString("002 " + ip.toString());
                        }

                reply->deleteLater();
                }
            );

    return temp;

}

我一直收到 qt.network.ssl 错误，链接 openssl 后我一直收到编译错误：

:-1: error: cannot find D:\OpenSSL-Win32\lib: Permission denied

:-1: error: cannot find -llibssl

collect2.exe:-1: error: error: ld returned 1 exit status

即使我目前没有使用 OpenSSL，我也愿意以后使用它。

Answer 1

OpenSSL 1.1.0 仅受 Qt 5.10 支持。请使用 OpenSSL 1.0.2l，您可以使用来自 npcglib.
您的 LIBS += 包含是正确的，但您的计算似乎没有权限或找不到库。无法告知为什么会出现此错误。验证文件夹中的库是否存在以及您的用户是否具有访问权限。
QNetworkReply *QNetworkAccessManager::get(const QNetworkRequest &request)是异步调用。在请求完成之前，您的函数 QString Commands::getPublicIp() 可能 return 一个空的 QString。

QSslSocket 无法解析和权限被拒绝错误

QSslSocket cannot resolve and Permission Denied error

c++

qt

openssl

qsslsocket