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错误消息如下：

qt.network.ssl：QSslSocket：无法解析 TLSv1_1_client_method

qt.network.ssl：QSslSocket：无法解析 TLSv1_2_client_method

qt.network.ssl：QSslSocket：无法解析 TLSv1_1_server_method

qt.network.ssl：QSslSocket：无法解析 TLSv1_2_server_method

qt.network.ssl：QSslSocket：无法解析 SSL_select_next_proto

qt.network.ssl：QSslSocket：无法解析 SSL_CTX_set_next_proto_select_cb

qt.network.ssl：QSslSocket：无法解析 SSL_get0_next_proto_negotiated

qt.network.ssl：QSslSocket：无法解析 SSL_set_alpn_protos

qt.network.ssl：QSslSocket：无法解析 SSL_CTX_set_alpn_select_cb

qt.network.ssl：QSslSocket：无法解析 SSL_get0_alpn_selected

我运行 Windows 7 机器，在我的 D: 驱动器上安装了 openssl 1.1.0。我正在使用 Qt5.9.0

我的简历

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;

}

我不断收到 qt.network.ssl 错误，在链接 openssl 后，我不断收到编译错误：

:-1: 错误: 找不到 D:\OpenSSL-Win32\lib: 权限被拒绝

:-1: 错误：找不到-llibssl

collect2.exe:-1: 错误: 错误: ld 返回 1 退出状态

尽管我目前没有使用 OpenSSL，但我愿意以后使用它。

4

1 回答 1

0

  1. 仅从 Qt 5.10 开始支持 OpenSSL 1.1.0。请使用 OpenSSL 1.0.2l，您可以使用与npcglib中的编译器匹配的预构建包。

  2. 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。无法说明为什么会发生此错误。验证文件夹中是否存在库以及您的用户是否有权访问。

  3. QNetworkReply *QNetworkAccessManager::get(const QNetworkRequest &request)是一个异步调用。在请求完成之前，您的函数QString Commands::getPublicIp()可能会返回一个空的 QString。

于 2018-04-25T19:19:13.513 回答