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This article will explain in detail how Qt implements http services. The editor thinks it is very practical, so I share it with you as a reference. I hope you can get something after reading this article.

First, let's look at the implementation result:

Qt HttpServer

On the left is the open Qt Http service, monitoring the service port, and receiving client requests; on the right is the browser access service.

Here is the specific code:

HttpDemo.pro

QT + = core

QT + = network

QT-= gui

CONFIG + = 11 console

CONFIG-= app_bundle

# The following define makes your compiler emit warnings if you use

# any Qt feature that has been marked deprecated (the exact warnings

# depend on your compiler). Please consult the documentation of the

# deprecated API in order to know how to port your code away from it.

DEFINES + = QT_DEPRECATED_WARNINGS

# You can also make your code fail to compile if it uses deprecated APIs.

# In order to do so, uncomment the following line.

# You can also select to disable deprecated APIs only up to a certain version of Qt.

# DEFINES + = QT_DISABLE_DEPRECATED_BEFORE=0x060000 # disables all the APIs deprecated before Qt 6.0.0

SOURCES + =\

Main.cpp\

Myhttpserver.cpp

# Default rules for deployment.

Qnx: target.path = / tmp/$$ {TARGET} / bin

Else: UnixPlus TARGET Android: target.path = / opt/$$ {TARGET} / bin

! isEmpty (target.path): INSTALLS + = target

HEADERS + =\

Myhttpserver.h

Myhttpserver.h

# ifndef MYHTTPSERVER_H

# define MYHTTPSERVER_H

# include

# include

# include

Class MyHttpServer: public QObject

{

Q_OBJECT

Public:

Explicit MyHttpServer (QObject * parent = nullptr)

~ MyHttpServer ()

QTcpSocket * socket

Public slots:

Void connection ()

Private:

Qint64 bytesAvailable () const

QTcpServer * server

Signals:

Public slots:

}

# endif / / MYHTTPSERVER_H

Main.cpp

# include

# include "myhttpserver.h"

Int main (int argc, char * argv [])

{

QCoreApplication a (argc, argv)

MyHttpServer server

Return a.exec ()

}

Myhttpserver.cpp

# include "myhttpserver.h"

# include

MyHttpServer::MyHttpServer (QObject * parent): QObject (parent)

{

Server = new QTcpServer (this)

Connect (server, & QTcpServer::newConnection, this, & MyHttpServer::connection)

If (! server- > listen (QHostAddress::Any, 8080))

{

QDebug () waitForReadyRead (100)); / / waiting to read data from the browser

Char webBrowerRXData [1000]

Int sv = socket- > read (webBrowerRXData, 1000)

QDebug () write ("Content-Type: text/html\ r\ n")

Socket- > write ("Connection: close\ r\ n")

Socket- > write ("Refresh: 1\ r\ n\ r\ n"); / / refreshes web brower every second.Request

Socket- > write (""

"

"

"

"Test Qt HttpServer"

"

"seconds connected:")

QByteArray str

Static qint16 count; / / Statistics for display on browsers

Str.setNum (count++)

Socket- > write (str)

Socket- > write (""

")

Socket- > flush ()

Connect (socket, & QTcpSocket::disconnected, socket, & QTcpSocket::deleteLater)

Socket- > disconnectFromHost ()

}

MyHttpServer::~MyHttpServer ()

{

Socket- > close ()

} this is the end of the article on "how Qt implements http Services". I hope the above content can be of some help to you so that you can learn more knowledge. if you think the article is good, please share it for more people to see.

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