Qt Http body请求类比postman

最新推荐文章于 2023-10-01 20:28:37 发布

原创最新推荐文章于 2023-10-01 20:28:37 发布 · 226 阅读

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CC 4.0 BY-SA版权

文章标签：

#qt #http #postman

该代码片段展示了如何使用Qt的QNetworkAccessManager进行POST请求，设置URL和Content-Type头信息，发送JSON数据，并处理可能的错误。它还涉及到了事件循环以等待请求完成，以及解析和打印HTTP响应的状态码和错误信息。

 QNetworkAccessManager *m_pHttpMgr = new QNetworkAccessManager();
    QHttpMultiPart *multiPart = new QHttpMultiPart(QHttpMultiPart::FormDataType,this);

    //设置url
    QString url = "http://Your Host:Your Port/api/user/login";
    //设置头信息
    QNetworkRequest requestInfo;
    requestInfo.setUrl(QUrl(url));
    requestInfo.setHeader(QNetworkRequest::ContentTypeHeader,QVariant("application/json"));



	 QJsonObject jsonObj;
    jsonObj.insert("account","");
    jsonObj.insert("password","123456lpj");
    QJsonDocument document;
    document.setObject(jsonObj);
    QByteArray content = document.toJson(QJsonDocument::Compact);
  QNetworkReply *reply =  m_pHttpMgr->post(requestInfo, content);
    //添加事件循环机制，返回后再运行后面的
    QEventLoop eventLoop;
    //      connect(reply, SIGNAL(finished()), &eventLoop, SLOT(quit()));
    QObject::connect(m_pHttpMgr, &QNetworkAccessManager::finished, &eventLoop, &QEventLoop::quit);

    eventLoop.exec();       //block until finish
//错误处理
    if (reply->error() == QNetworkReply::NoError)
    {
        qDebug() << "request protobufHttp NoError";
    }
    else
    {
        qDebug()<<"request protobufHttp handle errors here";
        QVariant statusCodeV = reply->attribute(QNetworkRequest::HttpStatusCodeAttribute);
        //statusCodeV是HTTP服务器的相应码，reply->error()是Qt定义的错误码，可以参考QT的文档
        qDebug( "request protobufHttp found error ....code: %d %d\n", statusCodeV.toInt(), (int)reply->error());
        qDebug(qPrintable(reply->errorString()));
    }

//请求收到的结果
    QJsonObject json;
    QByteArray responseByte = reply->readAll();
    json = QJsonDocument::fromJson(responseByte).object();

    qDebug() << "request protobufHttp NoError";