Qt HTTP Server? [closed]

Answer 1

Here is a very simple HTTP web server that will update the number of seconds, each second, since a connection was made on the web browser. It also displays the data sent by the web browser on the screen. The program is set to use port 8080 e.g 127.0.0.1:8080

#-------------- Project file webServer3.pro ------- 
QT       += core
QT       += network
QT       -= gui

TARGET = webServer3
CONFIG   += console
CONFIG   -= app_bundle

TEMPLATE = app


SOURCES += main.cpp

HEADERS += \
myhttpserver.h

/*------------------header file myhttpserver.h --------------*/ 
#ifndef MYHTTPSERVER
#define MYHTTPSERVER
#include 
#include 
#include 
#include 
#include 
#include 
#include 

class myHTTPserver : public QObject
{
    Q_OBJECT
public:
    explicit myHTTPserver(QObject *parent = 0);
    ~myHTTPserver();
    QTcpSocket *socket ;
public slots:
    void myConnection();
private:
    qint64 bytesAvailable() const;
    QTcpServer *server;
signals:
};


/*------------------------main.cpp -------------------------*/
#include "myhttpserver.h"

using namespace std;
void delayms( int millisecondsToWait );

int main(int argc, char *argv[])
    {
    QCoreApplication a(argc, argv);
    myHTTPserver server;
    return a.exec();
}

myHTTPserver::myHTTPserver(QObject *parent) : QObject(parent)
    {
     server = new QTcpServer(this);
    // waiting for the web brower to make contact,this will emit signal
    connect(server, SIGNAL(newConnection()),this, SLOT(myConnection()));
    if(!server->listen(QHostAddress::Any,8080))cout<< "\nWeb server      could not start";
    else cout<<"\nWeb server is waiting for a connection on port 8080";
}

void myHTTPserver::myConnection()
    {
    static qint16 count;  //count number to be displayed on web browser
    socket = server->nextPendingConnection();
    while(!(socket->waitForReadyRead(100)));  //waiting for data to be read from web browser

    char webBrowerRXData[1000];
    int sv=socket->read(webBrowerRXData,1000);
    cout<<"\nreading web browser data=\n";
    for(int i=0;iwrite("HTTP/1.1 200 OK\r\n");       // \r needs to be before \n
    socket->write("Content-Type: text/html\r\n");
    socket->write("Connection: close\r\n");
    socket->write("Refresh: 1\r\n\r\n");     //refreshes web browser     every second. Require two \r\n.

    socket->write("\r\n");
    socket->write("Number of seconds since connected.. ");
    QByteArray str;
    str.setNum(count++);   //convert int to string
    socket->write(str);
    socket->write(" \n\n");

    socket->flush();
    connect(socket, SIGNAL(disconnected()),socket, SLOT(deleteLater()));
    socket->disconnectFromHost();
}

myHTTPserver::~myHTTPserver()
    {
    socket->close();
}