本篇内容介绍了“Qt怎么实现http服务”的有关知识，在实际案例的操作过程中，不少人都会遇到这样的困境，接下来就让小编带领大家学习一下如何处理这些情况吧！希望大家仔细阅读，能够学有所成！
先看执行结果：
Qt HttpServer
左边是开启的Qt Http服务，监控服务端口，及接收客户端请求；右侧是浏览器访问服务。
下面是具体代码：
HttpDemo.pro
QT += core
QT += network
QT -= gui
CONFIG += c++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/$${TARGET}/bin
else: unix:!android: target.path = /opt/$${TARGET}/bin
!isEmpty(target.path): INSTALLS += target
HEADERS +=
myhttpserver.hmyhttpserver.h
#ifndef MYHTTPSERVER_H
#define MYHTTPSERVER_H
#include <QObject>
#include <QTcpServer>
#include <QTcpSocket>
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_Hmain.cpp
#include <QCoreApplication>
#include "myhttpserver.h"
int main(int argc, char *argv[])
{
QCoreApplication a(argc, argv);
MyHttpServer server;
return a.exec();
}myhttpserver.cpp
#include "myhttpserver.h"
#include <QDebug>
MyHttpServer::MyHttpServer(QObject *parent) : QObject(parent)
{
server = new QTcpServer(this);
connect(server, &QTcpServer::newConnection, this, &MyHttpServer::connection);
if(!server->listen(QHostAddress::Any, 8080))
{
qDebug() << "
Web服务未启动";
}
else
{
qDebug() << "
Web服务在端口8080等待客户端连接";
}
}
void MyHttpServer::connection()
{
socket = server->nextPendingConnection();
while (!(socket->waitForReadyRead(100))); //等待从浏览器读取数据
char webBrowerRXData[1000];
int sv = socket->read(webBrowerRXData, 1000);
qDebug() << "正在从浏览器读取数据=" << QString(webBrowerRXData);
socket->write("HTTP/1.1 200 OK
"); //
needs to be before
socket->write("Content-Type: text/html
");
socket->write("Connection: close
");
socket->write("Refresh: 1
"); //refreshes web brower every second.Request
socket->write("<!DOCTYPE>"
"<html>"
"<header>"
"<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />"
"<title>测试Qt HttpServer</title>"
"</header>"
"<body>已连接秒数：");
QByteArray str;
static qint16 count; //用于在浏览器上显示的统计数字
str.setNum(count++);
socket->write(str);
socket->write("</body>"
"</html>");
socket->flush();
connect(socket, &QTcpSocket::disconnected, socket, &QTcpSocket::deleteLater);
socket->disconnectFromHost();
}
MyHttpServer::~MyHttpServer()
{
socket->close();
}