C++|Java混合实验-java搭建get方法靶场，Qt发送请求获取数据
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C++|Java混合实验-java搭建get方法靶场，Qt发送请求获取数据
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目錄
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背景
演示
java web源碼
Qt端源碼
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背景
因為最近想進一步學習http協議，想從QNetworkAccessManager中，但訪問其他網站獲取的數據，太過于復雜，不便于個人的實驗，在此，本人使用Java搭建了一個get方法的靶場，來學習QNetworkAccessManager的使用
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演示
web網站如下：
如果輸入了正確的QQ號：
如果輸入了錯誤的QQ號：
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在此使用Qt，輸入存在的QQ號
再次輸入不存在的QQ號：
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在此抓一下包：
發送Get請求的封包：
此處的I am fine, fuck you是Qt發送的請求
服務器那邊回的包：
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java web源碼
java源碼結構如下：
源碼如下：
DataSource.java
package my;import java.util.ArrayList;public class DataSource {ArrayList<Record> m_records = new ArrayList<Record>();public DataSource(){m_records.add(new Record("XiaoMing", "10086"));m_records.add(new Record("XiaoHong", "10087"));m_records.add(new Record("XiaoGang", "10088"));}public Record query(String qq){for(Record e : m_records){if(e.qq.equals(qq)){return e;}}return null;}public class Record {public String name = "";public String qq = "0000";public Record(String name, String qq){this.name = name;this.qq = qq;}} }index.jsp
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html><head><base href="<%=basePath%>"><title>My JSP 'index.jsp' starting page</title><meta http-equiv="pragma" content="no-cache"><meta http-equiv="cache-control" content="no-cache"><meta http-equiv="expires" content="0"> <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"><meta http-equiv="description" content="This is my page"><!--<link rel="stylesheet" type="text/css" href="styles.css">--></head><body><form method="get" action="query.jsp" >輸入QQ號<input type="text" name="qq" /> <input type="submit" value="提交" /></form></body> </html>query.jsp
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%><% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html><head><base href="<%=basePath%>"><title>My JSP 'query.jsp' starting page</title><meta http-equiv="pragma" content="no-cache"><meta http-equiv="cache-control" content="no-cache"><meta http-equiv="expires" content="0"> <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"><meta http-equiv="description" content="This is my page"><!--<link rel="stylesheet" type="text/css" href="styles.css">--></head><body><%@ page import="my.*" %><%String qq = request.getParameter("qq");DataSource db = new DataSource();DataSource.Record result = db.query(qq);if(result == null){out.print("<p> 不存在此記錄 </p> ");} else{out.print("<p> 姓名: " + result.name + ", QQ: " + result.qq + "</p>");}%></body> </html>?
Qt端源碼
Qt程序結構如下：
widget.ui如下：
源碼如下：
NetworkAccessManagerDemo.pro
QT += core gui networkgreaterThan(QT_MAJOR_VERSION, 4): QT += widgetsTARGET = NetworkAccessManagerDemo TEMPLATE = appDEFINES += QT_DEPRECATED_WARNINGSSOURCES += main.cpp\widget.cppHEADERS += widget.hFORMS += widget.uiwidget.h
#ifndef WIDGET_H #define WIDGET_H#include <QWidget>QT_BEGIN_NAMESPACE class QNetworkAccessManager; class QNetworkReply; QT_END_NAMESPACEnamespace Ui { class Widget; }class Widget : public QWidget {Q_OBJECTpublic:explicit Widget(QWidget *parent = 0);~Widget();protected slots:void replyFinished(QNetworkReply *reply);void netWorkReplyLoadProgress(qint64 received, qint64 total);void deleteNetWorkReply();void httpRead();void submitBtnClicked();private:Ui::Widget *ui;QNetworkAccessManager *m_manager;QNetworkReply *m_netWorkReply; };#endif // WIDGET_Hmain.cpp
#include "widget.h" #include <QApplication>int main(int argc, char *argv[]) {QApplication a(argc, argv);Widget w;w.show();return a.exec(); }widget.cpp
#include "widget.h" #include "ui_widget.h" #include <QNetworkAccessManager> #include <QNetworkReply> #include <QDebug> #include <QNetworkReply>Widget::Widget(QWidget *parent) :QWidget(parent),ui(new Ui::Widget) {ui->setupUi(this);this->setWindowTitle("CSDN IT1995");m_manager = new QNetworkAccessManager(this);connect(m_manager, SIGNAL(finished(QNetworkReply*)), this, SLOT(replyFinished(QNetworkReply*)));connect(ui->submitPushButton, SIGNAL(clicked(bool)), this, SLOT(submitBtnClicked())); }Widget::~Widget() {delete ui; }void Widget::replyFinished(QNetworkReply *reply) {qDebug() << "replyFinished called!";//qDebug() << "reply->readAll():" << QString::fromUtf8(reply->readAll());//qDebug() << reply->readAll();ui->plainTextEdit->appendHtml(reply->readAll());m_netWorkReply->deleteLater(); //此列子中 m_netWorkReply->deleteLater(); 與 delete m_netWorkReply; 沒有什么區別 }void Widget::netWorkReplyLoadProgress(qint64 received, qint64 total) {//qDebug() << "received:" << received << " total:" << total; }void Widget::deleteNetWorkReply() {qDebug() << "deleteNetWorkReply called!" << endl; }void Widget::httpRead() {//qDebug() << m_netWorkReply->readAll(); }void Widget::submitBtnClicked() {QString qq = ui->QQLineEdit->text();QString url = QString("http://47.101.40.99:8080/GetPostDemo/query.jsp?qq=%1").arg(qq);QNetworkRequest request;request.setUrl(QUrl(url));request.setRawHeader("User-Agent", "I am fine, fuck you");m_netWorkReply = m_manager->get(request);connect(m_netWorkReply, SIGNAL(downloadProgress(qint64,qint64)), this, SLOT(netWorkReplyLoadProgress(qint64,qint64)));connect(m_netWorkReply, SIGNAL(readyRead()), this, SLOT(httpRead())); }?
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