QSslSocket無法解決和權限被拒絕錯誤

Question

錯誤消息如下：

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

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

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

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

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

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

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

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

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

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

我運行Windows 7計算機，在D：驅動器上安裝了openssl 1.1.0。 我正在使用Qt5.9.0

我的簡歷

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

這是觸發錯誤的代碼：

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錯誤，並且在鏈接openssl之后，我一直收到編譯錯誤：

：-1：錯誤：找不到D：\\ OpenSSL-Win32 \\ lib：權限被拒絕

：-1：錯誤：找不到-llibssl

collect2.exe：-1：錯誤：錯誤：ld返回了1個退出狀態

即使我當前不使用OpenSSL，我也願意稍后使用它。

Answer 1

1. 僅Qt 5.10支持OpenSSL 1.1.0。 請使用OpenSSL 1.0.2l，您可以使用與npcglib中的編譯器匹配的預構建軟件包。

2. 您的LIBS +=包含是正確的，但似乎您的計算沒有權限或未找到庫。 無法確定為什么會發生此錯誤。 驗證文件夾中是否存在庫，並且您的用戶具有訪問權限。

3. QNetworkReply *QNetworkAccessManager::get(const QNetworkRequest &request)是一個異步調用。 您的函數QString Commands::getPublicIp()可能會在請求完成之前返回一個空的QString。