#include <QNetworkReply> #include <QNetworkRequest> QNetworkAccessManager *m_accessManager;Widget::Widget(QWidget *parent) : QWidget(parent), ui(new Ui::Widget) { ui->setupUi(this); m_accessManager = new QNetworkAccessManager(this); QObject::connect(m_accessManager, SIGNAL(finished(QNetworkReply*)), this, SLOT(finishedSlot(QNetworkReply*))); } Widget::~Widget() { delete ui; } void Widget::finishedSlot(QNetworkReply *reply) { if (reply->error() == QNetworkReply::NoError) { QByteArray bytes = reply->readAll(); qDebug()<<bytes; QString string = QString::fromUtf8(bytes); ui->textBrowser->setText(string.toUtf8()); } else { qDebug()<<"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( "found error ....code: %d %d\n", statusCodeV.toInt(), (int)reply->error()); qDebug(qPrintable(reply->errorString())); } reply->deleteLater(); } void Widget::on_pushButton_clicked() { //POST QNetworkRequest *request = new QNetworkRequest(); request->setUrl(QUrl("http://localhost:8888/login")); // request->setHeader(QNetworkRequest::ContentTypeHeader,"application/x-www-form-urlencoded"); // request->setRawHeader("Accept","text/html, application/xhtml+xml, */*"); // request->setRawHeader("Referer","http://localhost:8888/login"); // request->setRawHeader("Accept-Language","zh-CN"); // request->setRawHeader("X-Requested-With","XMLHttpRequest"); // request->setRawHeader("User-Agent","Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0)"); // request->setRawHeader("Content-Type","application/x-www-form-urlencoded"); // request->setRawHeader("Accept-Encoding","gzip,deflate"); // request->setRawHeader("Host","localhost:8888"); // request->setRawHeader("Content-Length","18"); // request->setRawHeader("Connection","Keep-Alive"); // request->setRawHeader("Cache-Control","no-cache"); QByteArray postData; postData.append("myname=lk&mypwd=33"); QNetworkReply* reply = m_accessManager->post(*request,postData); } void Widget::on_pushButton_get_clicked() { //GET // QUrl url("https://kyfw.12306.cn/otn/resources/js/framework/station_name.js"); // QUrl url("http://localhost:8888/login"); // QUrl url("http://dict.baidu.com/s?wd=name"); QNetworkRequest *request = new QNetworkRequest(); request->setUrl(QUrl("http://dict.baidu.com/s?wd=name")); m_accessManager->get(*request); }
http://blog.csdn.net/liukang325/article/details/46915359