HTTPCliect程序

#include "mainwindow.h" #include "ui_mainwindow.h" MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent), ui(new Ui::MainWindow) { ui->setupUi(this); managerGet = new QNetworkAccessManager(this); //新建QNetworkAccessManager对象 connect(managerGet,SIGNAL(finished(QNetworkReply*)), //关联信号和槽 this,SLOT(replyFinished(QNetworkReply*))); managerGet->get(QNetworkRequest(QUrl("http://api.yeelink.net/v1.0/device/350790/sensor/393870/datapoints"))); //发送请求 managerPost = new QNetworkAccessManager(this); //新建QNetworkAccessManager对象 QJsonObject obj; obj.insert("timestamp", "2016-09-14T20:36:51"); obj.insert("value",6); QNetworkRequest req; req.setUrl(QUrl("http://api.yeelink.net/v1.0/device/350790/sensor/393912/datapoints")); //req.setHeader(QNetworkRequest::ContentTypeHeader, "U-ApiKey:019a2ac876bfefdead8b3822b86a0f0c"); req.setRawHeader("U-ApiKey", "019a2ac876bfefdead8b3822b86a0f0c");//这个用在不是标准的header managerPost->post(req, QJsonDocument(obj).toJson()); QObject::connect(managerPost, &QNetworkAccessManager::finished, [](QNetworkReply* reply){ if(reply->error() != QNetworkReply::NoError) { qDebug() << "Error:" << reply->errorString(); return; } QByteArray buf = reply->readAll(); qDebug() << "OK:"<< buf; }); } MainWindow::~MainWindow() { delete ui; } void MainWindow::replyFinished(QNetworkReply *reply)//当回复结束后 { //使用utf8编码，这样才可以显示中文 QString all = reply->readAll(); ui->textBrowser->setText(all); reply->deleteLater(); //最后要释放reply对象 }