QT http如何用post向一个url发空数据
部分代码
QJsonObject oJson;
QNetworkAccessManager* httpManager;
QNetworkRequest httpRequest;
QJsonDocument httpDocum;
QByteArray httpData;
m_httpRequest.setUrl(url);
httpRequest.setHeader(QNetworkRequest::ContentTypeHeader,QVariant("application/json"));
httpDocum.setObject(oJson);
httpData = httpDocum.toJson(QJsonDocument::Compact);// convert to json
httpReply = httpManager->post(httpRequest, httpData);
其中httpdata是空的,httpdata如何赋值呢?