当前位置：首页 > news >正文

福建省鑫通建设有限公司网站公关公司的主要业务

news 2025/7/20 3:06:13

福建省鑫通建设有限公司网站,公关公司的主要业务,网站建设小程序定制开发,婚纱摄影网站的设计思路背景需要解决以下几个问题政府项目新浏览器兼容老系统ActiveX控件，Qt WebEngineView没有直接的实现方案，需要利用Qt的ActiveX兼容模块与浏览器往返多次交互Qt ActiveX未实现COM事件通知官方Win32示例存在滥用lambda函数的嫌疑，lambda函数…

背景

需要解决以下几个问题

政府项目新浏览器兼容老系统ActiveX控件，Qt WebEngineView没有直接的实现方案，需要利用Qt的ActiveX兼容模块与浏览器往返多次交互
Qt ActiveX未实现COM事件通知
官方Win32示例存在滥用lambda函数的嫌疑，lambda函数多层嵌套，程序逻辑层次混乱，整个逻辑被揉成一垛。

官方示例代码

官方介绍文档在这里：https://learn.microsoft.com/microsoft-edge/webview2/get-started/win32。官方代码仓库在这里：GitHub - MicrosoftEdge/WebView2Samples: Microsoft Edge WebView2 samples

摘录一段lambda多层嵌套的代码，你们体会一下：

	CreateCoreWebView2EnvironmentWithOptions(nullptr, nullptr, nullptr,Callback<ICoreWebView2CreateCoreWebView2EnvironmentCompletedHandler>([hWnd](HRESULT result, ICoreWebView2Environment* env) -> HRESULT {// Create a CoreWebView2Controller and get the associated CoreWebView2 whose parent is the main window hWndenv->CreateCoreWebView2Controller(hWnd, Callback<ICoreWebView2CreateCoreWebView2ControllerCompletedHandler>([hWnd](HRESULT result, ICoreWebView2Controller* controller) -> HRESULT {if (controller != nullptr) {webviewController = controller;webviewController->get_CoreWebView2(&webview);}// Add a few settings for the webview// The demo step is redundant since the values are the default settingswil::com_ptr<ICoreWebView2Settings> settings;webview->get_Settings(&settings);settings->put_IsScriptEnabled(TRUE);settings->put_AreDefaultScriptDialogsEnabled(TRUE);settings->put_IsWebMessageEnabled(TRUE);// Resize WebView to fit the bounds of the parent windowRECT bounds;GetClientRect(hWnd, &bounds);webviewController->put_Bounds(bounds);// Schedule an async task to navigate to Bingwebview->Navigate(L"https://www.bing.com/");// <NavigationEvents>// Step 4 - Navigation events// register an ICoreWebView2NavigationStartingEventHandler to cancel any non-https navigationEventRegistrationToken token;webview->add_NavigationStarting(Callback<ICoreWebView2NavigationStartingEventHandler>([](ICoreWebView2* webview, ICoreWebView2NavigationStartingEventArgs* args) -> HRESULT {wil::unique_cotaskmem_string uri;args->get_Uri(&uri);std::wstring source(uri.get());if (source.substr(0, 5) != L"https") {args->put_Cancel(true);}return S_OK;}).Get(), &token);// </NavigationEvents>// <Scripting>// Step 5 - Scripting// Schedule an async task to add initialization script that freezes the Object objectwebview->AddScriptToExecuteOnDocumentCreated(L"Object.freeze(Object);", nullptr);// Schedule an async task to get the document URLwebview->ExecuteScript(L"window.document.URL;", Callback<ICoreWebView2ExecuteScriptCompletedHandler>([](HRESULT errorCode, LPCWSTR resultObjectAsJson) -> HRESULT {LPCWSTR URL = resultObjectAsJson;//doSomethingWithURL(URL);return S_OK;}).Get());// </Scripting>// <CommunicationHostWeb>// Step 6 - Communication between host and web content// Set an event handler for the host to return received message back to the web contentwebview->add_WebMessageReceived(Callback<ICoreWebView2WebMessageReceivedEventHandler>([](ICoreWebView2* webview, ICoreWebView2WebMessageReceivedEventArgs* args) -> HRESULT {wil::unique_cotaskmem_string message;args->TryGetWebMessageAsString(&message);// processMessage(&message);webview->PostWebMessageAsString(message.get());return S_OK;}).Get(), &token);// Schedule an async task to add initialization script that// 1) Add an listener to print message from the host// 2) Post document URL to the hostwebview->AddScriptToExecuteOnDocumentCreated(L"window.chrome.webview.addEventListener(\'message\', event => alert(event.data));" \L"window.chrome.webview.postMessage(window.document.URL);",nullptr);// </CommunicationHostWeb>return S_OK;}).Get());return S_OK;}).Get());

解决方案

下面以实现自动登录外网网关为目标，企业微信自动上线，免开机输入账号密码。这样领导看到你上线，可以开机以后就可以慢慢吃早餐了。（开个玩笑）

本实现方案把官方示例代码做成了静态库，没有添加其它东西。

新建CMake项目

这里用到了Qt5静态库，目的是单文件可执行，不需要部署。需要静态库的读者可以自行删除。代码如下：

cmake_minimum_required(VERSION 3.21)
project(auto-online CXX)set(CMAKE_AUTOUIC ON)
set(CMAKE_AUTORCC ON)
set(CMAKE_AUTOMOC ON)add_definitions(/D_UNICODE /DUNICODE)
add_compile_definitions(WIN32 _WINDOWS)add_compile_options(/utf-8 $<IF:$<CONFIG:Debug>,/MTd,/MT>)
link_directories($ENV{Qt5_DIR}/lib)
link_directories($ENV{Qt5_DIR}/plugins/platforms)
link_directories($ENV{Qt5_DIR}/plugins/imageformats)
link_libraries(UxTheme Winmm Version ws2_32 imm32 dwmapi)link_libraries($<IF:$<CONFIG:Debug>,Qt5FontDatabaseSupportd,Qt5FontDatabaseSupport>)
link_libraries($<IF:$<CONFIG:Debug>,Qt5UiToolsd,Qt5UiTools>)
link_libraries($<IF:$<CONFIG:Debug>,Qt5AccessibilitySupportd,Qt5AccessibilitySupport>)
link_libraries($<IF:$<CONFIG:Debug>,Qt5EventDispatcherSupportd,Qt5EventDispatcherSupport>)
link_libraries($<IF:$<CONFIG:Debug>,Qt5ThemeSupportd,Qt5ThemeSupport>)
link_libraries($<IF:$<CONFIG:Debug>,Qt5UiToolsd,Qt5UiTools>)link_libraries($<IF:$<CONFIG:Debug>,qtpcre2d,qtpcre2>)
link_libraries($<IF:$<CONFIG:Debug>,qtlibpngd,qtlibpng>)
link_libraries($<IF:$<CONFIG:Debug>,qtharfbuzzd,qtharfbuzz>)
link_libraries($<IF:$<CONFIG:Debug>,qtfreetyped,qtfreetype>)
link_libraries($<IF:$<CONFIG:Debug>,qwindowsd,qwindows>)
link_libraries($<IF:$<CONFIG:Debug>,qicnsd,qicns>)
link_libraries($<IF:$<CONFIG:Debug>,qtgad,qtga>)
link_libraries($<IF:$<CONFIG:Debug>,qtiffd,qtiff>)
link_libraries($<IF:$<CONFIG:Debug>,qwbmpd,qwbmp>)
link_libraries($<IF:$<CONFIG:Debug>,qtiffd,qtiff>)
link_libraries($<IF:$<CONFIG:Debug>,qwebpd,qwebp>)
link_libraries($<IF:$<CONFIG:Debug>,qgifd,qgif>)
link_libraries($<IF:$<CONFIG:Debug>,qjpegd,qjpeg>)
link_libraries($<IF:$<CONFIG:Debug>,qicod,qico>)message("-- Qt5_DIR: " $ENV{Qt5_DIR})
find_package(Qt5 COMPONENTS Core Gui Widgets Network REQUIRED)include_directories(${CMAKE_SOURCE_DIR}/3rdparty/webview2loader/include)
include_directories(${CMAKE_SOURCE_DIR}/3rdparty/wil/include)
link_directories(${CMAKE_SOURCE_DIR}/3rdparty/webview2loader/lib)
link_libraries(Qt5::Core Qt5::Gui Qt5::Widgets Qt5::Network WebView2LoaderStatic)file(GLOB SRCS *.ui *.cpp *.h)
add_executable(${PROJECT_NAME} WIN32 ${SRCS})
set_directory_properties(PROPERTIES VS_STARTUP_PROJECT ${PROJECT_NAME})
# 环境变量的路径不能带双引号
# message("VCINSTALLDIR: " $ENV{VCINSTALLDIR})
# find_file(VSPATH NAMES "vcruntime140d.dll" PATHS $ENV{VCINSTALLDIR}  REQUIRED NO_DEFAULT_PATH)
# file(TO_NATIVE_PATH ${VSPATH} VSPATH) 
#message("VC CRT PATH: " ${VSPATH})
# set(VSPATH $<IF:$<CONFIG:Debug>,$ENV{VCINSTALLDIR}/Redist/MSVC/14.29.30133/onecore/debug_nonredist/x64/Microsoft.VC142.DebugCRT,$ENV{VCINSTALLDIR}/Redist/MSVC/14.29.30133/x64/Microsoft.VC142.CRT> CACHE STRING "VCRT" FORCE)
# string(CONCAT VSPATH ${VSPATH} ";$ENV{Qt5_DIR}\\bin")set_target_properties(${PROJECT_NAME} PROPERTIESVS_DEBUGGER_WORKING_DIRECTORY ${CMAKE_BINARY_DIR}VS_DEBUGGER_ENVIRONMENT "Path=$ENV{Qt5_DIR}\\bin"WIN32_EXECUTABLE TRUE)

用Qt Designer设计一个简单的窗口类型

类型名字很简单，就是MainWindow。这个窗口仅启用了布局，没有添加任何控件。UI代码如下：

<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0"><class>MainWindow</class><widget class="QMainWindow" name="MainWindow"><property name="geometry"><rect><x>0</x><y>0</y><width>800</width><height>600</height></rect></property><property name="windowTitle"><string>MainWindow</string></property><widget class="QWidget" name="central_widget"><layout class="QVBoxLayout" name="vl1"><property name="spacing"><number>0</number></property><property name="leftMargin"><number>0</number></property><property name="topMargin"><number>0</number></property><property name="rightMargin"><number>0</number></property><property name="bottomMargin"><number>0</number></property><item><widget class="QWidget" name="browser_widget" native="true"><layout class="QVBoxLayout" name="vl2"/></widget></item></layout></widget></widget><resources/><connections/>
</ui>

声明信号槽

#ifndef MAINWINDOW_H
#define MAINWINDOW_H#include <QMainWindow>
#include <QThread>#include <windows.h>
#include <stdlib.h>
#include <string>
#include <tchar.h>
#include "wrl.h"
#include "wil/com.h"
#include "WebView2.h"#define PROFILE_DATA "cw_webview2"namespace Ui {
class MainWindow;
}class MainWindow : public QMainWindow
{Q_OBJECTpublic:explicit MainWindow(QWidget *parent = nullptr);~MainWindow();void load_webview2(HWND hWnd);void task_run();HRESULT cb_create_environment(HWND, HRESULT, ICoreWebView2Environment *);HRESULT cb_create_controller(HWND, HRESULT, ICoreWebView2Controller *);HRESULT on_navigate_started(ICoreWebView2 *, ICoreWebView2NavigationStartingEventArgs *);HRESULT cb_execute_script(HRESULT, LPCWSTR);HRESULT on_webmessage_received(ICoreWebView2 *, ICoreWebView2WebMessageReceivedEventArgs *);HRESULT on_navigate_completed(ICoreWebView2*, ICoreWebView2NavigationCompletedEventArgs*);// HRESULT cb_deliver(HWND, HRESULT, ...);signals:void prepare();void load_auth_page();void put_name();void put_password();void click_login();void wait(int iminute);protected:void resizeEvent(QResizeEvent* evt) override;void closeEvent(QCloseEvent*) override;protected slots:void on_prepare();void on_load_auth_page();void on_put_name();void on_put_password();void on_click_login();void on_wait(int iminute);private:Ui::MainWindow *ui;// Pointer to WebViewControllerwil::com_ptr<ICoreWebView2Controller> m_controller;bool m_brunning = false;QThread* m_task;// Pointer to WebView windowwil::com_ptr<ICoreWebView2_15> m_webview;Microsoft::WRL::ComPtr<ICoreWebView2ExecuteScriptCompletedHandler> js_cb;Microsoft::WRL::ComPtr<ICoreWebView2WebMessageReceivedEventHandler> msg_cb;
};#endif // MAINWINDOW_H

在合适的时机填入账号密码

本来想做成弹框让用户输入账号密码，忽然发现这种做法对信息部门的同事不太友好，各位读者如有请自行修改。示例代码中的网关地址、用户名和密码是乱写的。

#include "MainWindow.h"
#include "ui_MainWindow.h"#include <QResizeEvent>
#include <QRect>
#include <QDebug>
#include <QStandardPaths>
#include <QDir>
#include <QMessageBox>
#include <QTimer>
#include <QApplication>using namespace Microsoft::WRL;MainWindow::MainWindow(QWidget *parent) :QMainWindow(parent),ui(new Ui::MainWindow)
{ui->setupUi(this);load_webview2((HWND)ui->browser_widget->winId());setWindowTitle(u8"自动连接外网工具");connect(this, SIGNAL(prepare()), this, SLOT(on_prepare()), Qt::QueuedConnection);connect(this, SIGNAL(load_auth_page()), this, SLOT(on_load_auth_page()), Qt::QueuedConnection);connect(this, SIGNAL(put_name()), this, SLOT(on_put_name()), Qt::QueuedConnection);connect(this, SIGNAL(put_password()), this, SLOT(on_put_password()), Qt::QueuedConnection);connect(this, SIGNAL(click_login()), this, SLOT(on_click_login()), Qt::QueuedConnection);connect(this, SIGNAL(wait(int)), this, SLOT(on_wait(int)), Qt::QueuedConnection);
}MainWindow::~MainWindow()
{delete ui;
}HRESULT MainWindow::on_navigate_started(ICoreWebView2 *webview,ICoreWebView2NavigationStartingEventArgs *args)
{wil::unique_cotaskmem_string uri;args->get_Uri(&uri);QString zurl = QString::fromStdWString(uri.get());// std::wstring source(uri.get());// if (source.substr(0, 5) != L"https")// {//     args->put_Cancel(true);// }qInfo().noquote() << "navigate: " << zurl;return S_OK;
}HRESULT MainWindow::cb_execute_script(HRESULT errorCode, LPCWSTR resultObjectAsJson)
{LPCWSTR URL = resultObjectAsJson;//doSomethingWithURL(URL);qInfo() << "executed javascript.";return S_OK;
}HRESULT MainWindow::on_webmessage_received(ICoreWebView2 *webview,ICoreWebView2WebMessageReceivedEventArgs *args)
{wil::unique_cotaskmem_string message;args->TryGetWebMessageAsString(&message);// processMessage(&message);//webview->PostWebMessageAsString(message.get());QString zmsg = QString::fromStdWString(message.get());qInfo().noquote() << "message: " << zmsg;return S_OK;
}HRESULT MainWindow::on_navigate_completed(ICoreWebView2 *webview,ICoreWebView2NavigationCompletedEventArgs *args)
{BOOL bsuccess;COREWEBVIEW2_WEB_ERROR_STATUS ierror;args->get_IsSuccess(&bsuccess);args->get_WebErrorStatus(&ierror);LPWSTR lpuri;webview->get_Source(&lpuri);QString zuri = QString::fromStdWString(lpuri);qInfo().noquote() << "complate : " << bsuccess << ", " << ierror << ", " << zuri;return S_OK;
}void MainWindow::resizeEvent(QResizeEvent *evt)
{if (!m_controller)return;RECT rc;QRect qrc =  ui->browser_widget->rect();rc.left = qrc.left();rc.top = qrc.top();rc.right = qrc.right();rc.bottom = qrc.bottom();m_controller->put_Bounds(rc);
}void MainWindow::closeEvent(QCloseEvent *)
{m_brunning = false;m_task->terminate();QThread::sleep(1);m_task->deleteLater();m_task = nullptr;
}void MainWindow::on_prepare()
{if (!m_webview)return;m_webview->NavigateToString(L"Preparing...");
}void MainWindow::on_load_auth_page()
{if (!m_webview)return;m_webview->Navigate(L"http://1.1.1.3/ac_portal/default/pc.html?tabs=pwd");qInfo() << "begin load auth page";
}void MainWindow::on_put_name()
{if (!m_webview)return;m_webview->ExecuteScript(L"$('#password_name').val('test1');""window.chrome.webview.postMessage('put name ok.');",js_cb.Get());
}void MainWindow::on_put_password()
{if (!m_webview)return;m_webview->ExecuteScript(L"$('#password_pwd').val('123456');""window.chrome.webview.postMessage('put password ok.');",js_cb.Get());
}void MainWindow::on_click_login()
{if (!m_webview)return;m_webview->ExecuteScript(L"$('#password_submitBtn').click();""window.chrome.webview.postMessage('click login ok.');",js_cb.Get());
}void MainWindow::on_wait(int iminute)
{QString zhtml = QString("Already wairted %1 minutes.").arg(iminute);if (!m_webview)return;m_webview->NavigateToString(zhtml.toStdWString().c_str());
}HRESULT MainWindow::cb_create_controller(HWND hWnd, HRESULT result,ICoreWebView2Controller *controller)
{if (!controller)return E_POINTER;m_controller = controller;wil::com_ptr<ICoreWebView2> webview;HRESULT ir =  m_controller->get_CoreWebView2(&webview);if (FAILED(ir))return ir;ir = webview->QueryInterface(IID_ICoreWebView2_15, (void **)&m_webview);if (FAILED(ir))return ir;// Add a few settings for the webview// The demo step is redundant since the values are the default settingswil::com_ptr<ICoreWebView2Settings> settings;m_webview->get_Settings(&settings);settings->put_IsScriptEnabled(TRUE);settings->put_AreDefaultScriptDialogsEnabled(TRUE);settings->put_IsWebMessageEnabled(TRUE);// Resize WebView to fit the bounds of the parent windowRECT bounds;GetClientRect(hWnd, &bounds);m_controller->put_Bounds(bounds);m_webview->NavigateToString(L"Preparing...");// <NavigationEvents>// Step 4 - Navigation events// register an ICoreWebView2NavigationStartingEventHandler to cancel any non-https navigationEventRegistrationToken token;auto nav_func = std::bind(&MainWindow::on_navigate_started, this, std::placeholders::_1,std::placeholders::_2);auto nav_cb = Callback<ICoreWebView2NavigationStartingEventHandler>(nav_func);m_webview->add_NavigationStarting(nav_cb.Get(), &token);auto com_func = std::bind(&MainWindow::on_navigate_completed, this, std::placeholders::_1,std::placeholders::_2);auto com_cb = Callback<ICoreWebView2NavigationCompletedEventHandler>(com_func);m_webview->add_NavigationCompleted(com_cb.Get(), &token);// </NavigationEvents>// <Scripting>// Step 5 - Scripting// Schedule an async task to add initialization script that freezes the Object object// 注入脚本//webview->AddScriptToExecuteOnDocumentCreated(L"Object.freeze(Object);", nullptr);// Schedule an async task to get the document URLauto js_func = std::bind(&MainWindow::cb_execute_script, this, std::placeholders::_1,std::placeholders::_2);js_cb = Callback<ICoreWebView2ExecuteScriptCompletedHandler>(js_func);//webview->ExecuteScript(L"window.document.URL;", js_cb.Get());// </Scripting>// <CommunicationHostWeb>// Step 6 - Communication between host and web content// Set an event handler for the host to return received message back to the web contentauto msg_func = std::bind(&MainWindow::on_webmessage_received, this, std::placeholders::_1,std::placeholders::_2);msg_cb = Callback<ICoreWebView2WebMessageReceivedEventHandler>(msg_func);m_webview->add_WebMessageReceived(msg_cb.Get(), &token);// Schedule an async task to add initialization script that// 1) Add an listener to print message from the host// 2) Post document URL to the host// 注入脚本//webview->AddScriptToExecuteOnDocumentCreated(//    L"window.chrome.webview.addEventListener(\'message\', event => alert(event.data));" \//    L"window.chrome.webview.postMessage(window.document.URL);",//    nullptr);// </CommunicationHostWeb>m_task = QThread::create(&MainWindow::task_run, this);m_task->setParent(this);m_task->start();return S_OK;
}void MainWindow::load_webview2(HWND hWnd)
{MainWindow *obj = this;auto func = &MainWindow::cb_create_environment;auto fn = [hWnd, obj, func](HRESULT result, ICoreWebView2Environment * env)->HRESULT{return (obj->*func)(hWnd, result, env);};auto cb = Callback<ICoreWebView2CreateCoreWebView2EnvironmentCompletedHandler>(fn);QDir d(QStandardPaths::writableLocation(QStandardPaths::TempLocation));auto ztemp = d.absoluteFilePath(PROFILE_DATA).toStdWString();HRESULT ir = CreateCoreWebView2EnvironmentWithOptions(nullptr, ztemp.c_str(), nullptr, cb.Get());if (FAILED(ir)){qCritical() << "create webview2 failed. code: " << ir;QTimer::singleShot(3000, [](){QApplication::quit();_Exit(1);});QMessageBox::warning(this,windowTitle(),u8"严重错误。程序即将退出。\n""请检查Microsoft Edge WebView2 Runtime是否存在。\n");}
}void MainWindow::task_run()
{if (!m_controller || !m_webview)return;m_brunning = true;while (m_brunning){emit on_prepare();QThread::sleep(3);if (!m_brunning)break;emit load_auth_page();QThread::sleep(10);if (!m_brunning)break;emit put_name();QThread::sleep(3);if (!m_brunning)break;emit put_password();QThread::sleep(3);if (!m_brunning)break;emit click_login();for (int i = 0; i < 10; i++){QThread::sleep(60);if (!m_brunning)break;emit wait(i + 1);}}
}HRESULT MainWindow::cb_create_environment(HWND hWnd, HRESULT result, ICoreWebView2Environment *env)
{MainWindow *obj = this;auto func = &MainWindow::cb_create_controller;auto fn = [hWnd, obj, func](HRESULT result, ICoreWebView2Controller * controller)->HRESULT{return (obj->*func)(hWnd, result, controller);};// Create a CoreWebView2Controller and get the associated CoreWebView2 whose parent is the main window hWndauto cb = Callback<ICoreWebView2CreateCoreWebView2ControllerCompletedHandler>(fn);HRESULT hr = env->CreateCoreWebView2Controller(hWnd, cb.Get());return hr;
}