目錄

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基本概念

代碼與實例

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基本概念

這里有一個查詢余額的：https://blog.csdn.net/qq78442761/article/details/100096351

下面來看看官方API文檔

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代碼與實例

成功的實例，Fiddler如下：

驗證碼如下：

程序運行截圖如下：

可見識別成功！

源碼如下：

#include <QCoreApplication> #include <QEventLoop> #include <QDebug> #include <QDateTime> #include <QString> #include <QMap> #include <QJsonDocument> #include <QCryptographicHash> #include <QNetworkAccessManager> #include <QNetworkReply> #include <QFile> #include <QNetworkRequest>const QString pdId = "AAAAA"; const QString pdKey = "BBBBBBBBBBBB"; const QString appId = "CCCCC"; const QString appKey = "DDDDDDDDDDDDDDDD/DDDDDDDDDDDDDD";int main(int argc, char *argv[]) {QCoreApplication a(argc, argv);QNetworkAccessManager *manager = new QNetworkAccessManager;QNetworkRequest *request = new QNetworkRequest;QString requestStr = "http://pred.fateadm.com/api/capreg";request->setUrl(requestStr);request->setRawHeader("Content-type", "application/x-www-form-urlencoded");//參數uint currentTime = QDateTime::currentDateTime().toTime_t();//簽名串QCryptographicHash pdMD5_1(QCryptographicHash::Md5);QCryptographicHash pdMD5_2(QCryptographicHash::Md5);QString pdMD51Str = QString::number(currentTime) + pdKey;pdMD5_1.addData(pdMD51Str.toUtf8());QString pdMD52Str = pdId + QString::number(currentTime) + QString(pdMD5_1.result().toHex());pdMD5_2.addData(pdMD52Str.toUtf8());//app簽名串QCryptographicHash appMD5_1(QCryptographicHash::Md5);QCryptographicHash appMD5_2(QCryptographicHash::Md5);QString appMD51Str = QString::number(currentTime) + appKey;appMD5_1.addData(appMD51Str.toUtf8());QString appMD52Str = appId + QString::number(currentTime) + QString(appMD5_1.result().toHex());appMD5_2.addData(appMD52Str.toUtf8());//得到文件數據QFile file("E:\\Qt2019\\PostImage\\genimage.png");if(!file.open(QIODevice::ReadOnly)){qDebug() << "這個文件有毒";return 0;}QString body = QString("user_id=%1&timestamp=%2&sign=%3&asign=%4&predict_type=%5&img_data=%6").arg(pdId).arg(currentTime).arg(QString(pdMD5_2.result().toHex())).arg(QString(appMD5_2.result().toHex())).arg(10400).arg(QString(file.readAll().toBase64()).replace("/", "%2F").replace("+", "%2B"));QNetworkReply *reply = manager->post(*request, body.toUtf8());QEventLoop loop;QObject::connect(reply, SIGNAL(finished()), &loop, SLOT(quit()));loop.exec();qDebug() << "The result is : ";QMap<QString, QVariant> map = QJsonDocument().fromJson(reply->readAll()).toVariant().toMap();qDebug() << map;delete request;delete manager;file.close();return a.exec(); }

這里有個坑，可以會出現Base64有問題：

Fiddler如下：

原因是因為，在HTTP傳輸中Base64要轉幾個字符串：

這樣即可正確傳輸

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