Qt Demo Http 解析网址 Openssl

今天练习了一下Qt 解析http协议，在Demo中使用到了Openssl

一上午的时间都是编译openssl，不过还是没有成功，很遗憾，这里整理了有关这个Demo的本件

网盘连接:见下方评论吧，长传太慢了

不过虽然没有编译通过openssl。不过也不影响使用，可以直接下载现成的openssl库进行开发，只需要安装，并且把文件拷贝值Qt目录的bin文件夹下面即可

下载地址：http://slproweb.com/products/Win32OpenSSL.html

剩下的就是按照网上的教程，一步一步的来编写代码

软件截图

详细代码

这里需要在工程文件中加入网络模块

pro工程文件

#-------------------------------------------------
#
# Project created by QtCreator 2016-12-27T09:16:58
#
#-------------------------------------------------

QT       += core gui

greaterThan(QT_MAJOR_VERSION, 4): QT += widgets network

TARGET = http_Project
TEMPLATE = app

SOURCES += main.cpp\
        widget.cpp

HEADERS  += widget.h

FORMS    += widget.ui

RC_FILE = ./source/Logo/http_icon.rc

头文件

#ifndef WIDGET_H
#define WIDGET_H

#include <QWidget>
#include <QtNetwork/QNetworkAccessManager>
#include <QtNetwork/QNetworkReply>
#include <QtNetwork/QNetworkRequest>
#include <QTimer>
#include <QString>
#include <QByteArray>
#include <QTextCodec>
#include <QMessageBox>
#include <QUrl>

namespace Ui {
class Widget;
}

class Widget : public QWidget
{
    Q_OBJECT

public:
    explicit Widget(QWidget *parent = 0);
    ~Widget();

    bool sendRequest(const QString& strUrl);

private slots:
    void slot_requestFinished();
    void slot_requestTimeout();
    void on_pushButton_clicked();

signals:
    void signal_requestFinished(bool bSuccess,const QString& strResult);
private:
    Ui::Widget *ui;

    QString m_serUrl;
    QNetworkAccessManager* m_pNetworkManager;
    QNetworkReply* m_pNetworkReply;
    QTimer* m_pTimer;
};

#endif // WIDGET_H

cpp文件

#include "widget.h"
#include "ui_widget.h"
#include <QDebug>
const int nHTTP_TIME = 10000;

Widget::Widget(QWidget *parent) :
    QWidget(parent),
    ui(new Ui::Widget)
{
    ui->setupUi(this);
    setWindowTitle("Http Demo");            //set window title
    ui->lineEdit_address->setToolTip("please input the address");
    ui->lineEdit_address->setPlaceholderText("please input the address");
    m_pNetworkManager = new QNetworkAccessManager(this);
    m_pNetworkReply = NULL;
    m_pTimer = new QTimer;
    connect(m_pTimer,SIGNAL(timeout()),this,SLOT(slot_requestTimeout()));
}

Widget::~Widget()
{
    m_pTimer->stop();
    delete ui;
}

bool Widget::sendRequest(const QString &strUrl)
{
    m_serUrl = strUrl;
    QNetworkRequest netRequest;
    netRequest.setHeader(QNetworkRequest::ContentTypeHeader,"application/x-www-from-urlencoded");
    netRequest.setUrl(QUrl(strUrl));
    if(strUrl.toLower().startsWith("https"))
    {
        QSslConfiguration sslConfig;
        sslConfig.setPeerVerifyMode(QSslSocket::VerifyNone);
        sslConfig.setProtocol(QSsl::TlsV1_1);
        netRequest.setSslConfiguration(sslConfig);
    }
    m_pNetworkReply = m_pNetworkManager->get(netRequest);
    connect(m_pNetworkReply,SIGNAL(finished()),this,SLOT(slot_requestFinished()));
    m_pTimer->start(nHTTP_TIME);

    qDebug()<<"sendRequest";

    return true;
}

void Widget::slot_requestFinished()
{
    m_pTimer->stop();
    QByteArray resultContent = m_pNetworkReply->readAll();
    QTextCodec* pCodec = QTextCodec::codecForName("UTF-8");
    QString strResult = pCodec->toUnicode(resultContent);
    int nHttpCode = m_pNetworkReply->attribute(QNetworkRequest::HttpStatusCodeAttribute).toInt();
    qDebug()<<"mHttpCode"<<nHttpCode;
    if(nHttpCode == 200)
    {
        ui->textEdit_result->setText(strResult);
        emit signal_requestFinished(true,strResult);
    }
    else
    {
        emit signal_requestFinished(false,strResult);
    }
    m_pNetworkReply->deleteLater();
//    this->deleteLater();
    qDebug()<<"requestFinish";
}

void Widget::slot_requestTimeout()
{
    emit signal_requestFinished(false ,"timeout");
    QMessageBox::warning(this,"Waring","Request False");
    m_pNetworkReply->deleteLater();
//    this->deleteLater();
}

void Widget::on_pushButton_clicked()
{
    QString str = ui->lineEdit_address->text().trimmed();
    sendRequest(str);
}