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Qt使用HTTP上傳json格式數(shù)據(jù)

 更新時(shí)間:2024年12月27日 10:01:19   作者:小灰灰搞電子  
這篇文章主要為大家詳細(xì)介紹了Qt如何使用HTTP上傳json格式數(shù)據(jù),文中的示例代碼講解詳細(xì),具有一定的借鑒價(jià)值,有需要的小伙伴可以參考一下

話不多說(shuō),直接上源碼

httpHelper.h

#ifndef HTTPHELPER_H
#define HTTPHELPER_H

#include <QObject>
#include <QNetworkAccessManager>
#include <QNetworkReply>
#include <QNetworkRequest>
#include <QJsonParseError>
#include <QJsonObject>
#include <QTime>
#include <QEventLoop>
#include <QMutex>
#include <QMap>
#include <QHttpMultiPart>
#include <QUrlQuery>

class HttpHelper : public QObject
{
    Q_OBJECT
public:
    explicit HttpHelper(QObject *parent = nullptr);
    ~HttpHelper();

    void uploadSyncVertifyInfoSlot(QString url,const QMap<QString,QString> body,QString value);
private:
    QNetworkAccessManager *networkAccessManager;
};

#endif // HTTPHELPER_H

httpHelper.cpp

HttpHelper::HttpHelper(QObject *parent)
    : QObject{parent}
{
    this->networkAccessManager = new QNetworkAccessManager(this);
}
HttpHelper::~HttpHelper()
{
    if(this->networkAccessManager)
    {
        this->networkAccessManager->clearAccessCache();
        this->networkAccessManager->destroyed();
        delete this->networkAccessManager;
    }
}
void HttpHelper::uploadSyncVertifyInfoSlot(QString url, const QMap<QString, QString> body, QString value)
{
    this->networkAccessManager->setTransferTimeout(2000);

    //發(fā)送異步get請(qǐng)求
    QNetworkRequest request;


    request.setHeader(QNetworkRequest::ContentTypeHeader, QVariant("application/json"));
    request.setHeader(QNetworkRequest::ContentLengthHeader, value.toUtf8().size());
    for(QMap<QString,QString>::ConstIterator it = body.begin();it != body.end();it++)
    {
        request.setRawHeader(it.key().toUtf8(),it.value().toUtf8());
    }
    request.setUrl(QUrl(url));
    //qDebug()<<request.url().toString();

    QNetworkReply *reply = this->networkAccessManager->post(request,value.toUtf8());

    connect(reply, &QNetworkReply::finished,
            [=]()
            {
                if(reply->error()!=QNetworkReply::NoError)
                {
                    //處理中的錯(cuò)誤信息
                    qWarning()<<"upload reply error:"<<reply->error();
                    qDebug()<<"upload reply error string:"<<reply->errorString();
                    qDebug()<<"upload status code:"<<reply->attribute(QNetworkRequest::HttpStatusCodeAttribute).toInt();
                    if(reply->isOpen())
                        qDebug()<<"upload response content:"<<reply->readAll();
                }
                else
                {
                    //獲取響應(yīng)信息
                    QByteArray replyData = reply->readAll();
                    qDebug()<<"upload reply:"<<replyData;
                }
                reply->deleteLater();
            });
}

具體使用方法

//上次數(shù)據(jù)
QJsonObject jsonObj;
jsonObj["letter_id"] = letterId;
jsonObj["courier_number"] = courierNumber;
jsonObj["attachment"] = attachment;
jsonObj["load_start_time"] = dateTime;
jsonObj["verify_finished_time"] = QDateTime::currentDateTime().toString("yyyy-MM-dd hh:mm:ss");
jsonObj["verify_result"] = verifyRes?"Success":"Failed";
jsonObj["batch_no"] = TaskManage::getRunningTask().taskName;

// 將JSON對(duì)象包裝成一個(gè)QJsonDocument
QJsonDocument jsonDoc(jsonObj);

// 將JSON文檔轉(zhuǎn)換為字符串
QString jsonString = jsonDoc.toJson(QJsonDocument::Compact);

QString url = R"(https://xxxxxxxxxx)";

QMap<QString,QString> contentMap;
contentMap["Authorization"] = QString("Bearer ").append(token);
this->httpHelper->uploadSyncVertifyInfo(url,contentMap,jsonString);

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