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Simple http client demo
1 // httpclientdemo.h 2 #ifndef HTTPCLIENTDEMO_H 3 #define HTTPCLIENTDEMO_H 4 5 #include <QMainWindow> 6 #include <QTcpSocket> 7 8 namespace Ui { 9 class HttpClientDemo; 10 } 11 12 class HttpClientDemo : public QMainWindow 13 { 14 Q_OBJECT 15 16 public: 17 explicit HttpClientDemo(QWidget *parent = 0); 18 ~HttpClientDemo(); 19 20 private: 21 Ui::HttpClientDemo *ui; 22 QTcpSocket *tcpSocket; 23 QString addr; 24 25 private slots: 26 void onConnected(); 27 void onReadyRead(); 28 void onDisconnected(); 29 void on_ClearButton_clicked(); 30 void on_OKButton_clicked(); 31 }; 32 33 #endif // HTTPCLIENTDEMO_H
1 // httpclientdemo.cpp 2 #include "httpclientdemo.h" 3 #include "ui_httpclientdemo.h" 4 5 #include <QDebug> 6 #include <QFile> 7 8 HttpClientDemo::HttpClientDemo(QWidget *parent) : 9 QMainWindow(parent), 10 ui(new Ui::HttpClientDemo) 11 { 12 ui->setupUi(this); 13 14 tcpSocket = new QTcpSocket(this); 15 connect(tcpSocket, SIGNAL(connected()), this, SLOT(onConnected())); 16 connect(tcpSocket, SIGNAL(readyRead()), this, SLOT(onReadyRead())); 17 connect(tcpSocket, SIGNAL(disconnected()), this, SLOT(onDisconnected())); 18 } 19 20 void HttpClientDemo::onConnected() 21 { 22 qDebug() << "Connected.."; 23 QString head = "GET / HTTP/1.1\r\n" 24 "Accept:text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8\r\n" 25 // Not to compress 26 // "Accept-Encoding:gzip, deflate, sdch\r\n" 27 "Accept-Language:zh-CN,zh;q=0.8\r\n" 28 "Connection:keep-alive\r\n" 29 "Host:"; 30 head += addr + "\r\n" 31 "Upgrade-Insecure-Requests:1\r\n" 32 "User-Agent:Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.87 Safari/537.36\r\n\r\n"; 33 QByteArray tmp = head.toLatin1(); 34 tcpSocket->write(tmp.data()); 35 } 36 37 void HttpClientDemo::onReadyRead() 38 { 39 // Absolute path 40 QFile file("D:\\Workspace\\Qt\\HttpClientDemo\\index.txt"); 41 file.open(QIODevice::Append | QIODevice::Text); 42 QTextStream out(&file); 43 qDebug() << "Ready read.."; 44 out << tcpSocket->readAll(); 45 out.flush(); 46 file.close(); 47 } 48 49 void HttpClientDemo::onDisconnected() 50 { 51 qDebug() << "Disconnected.."; 52 } 53 54 HttpClientDemo::~HttpClientDemo() 55 { 56 delete ui; 57 } 58 59 void HttpClientDemo::on_ClearButton_clicked() 60 { 61 ui->IpLineEdit->setText(QString()); 62 } 63 64 void HttpClientDemo::on_OKButton_clicked() 65 { 66 addr = ui->IpLineEdit->text(); 67 tcpSocket->connectToHost(addr, 80); 68 }
1 // main.cpp 2 #include "httpclientdemo.h" 3 #include <QApplication> 4 5 int main(int argc, char *argv[]) 6 { 7 QApplication a(argc, argv); 8 HttpClientDemo w; 9 w.show(); 10 11 return a.exec(); 12 }
Simple http client demo
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