c# edge webview2封装解决跨域问题

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ives404 2022-07-28 14:34:37 博主文章分类：.NET ©著作权

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//如果没有安装则自动安装,然后再加载页面
    public partial class WebView2Ex : UserControl
    {
        WebView2ExViewModel model;

        #region 加载的URL
        public string URL
        {
            get { return (string)GetValue(URIPropertyProperty); }
            set { SetValue(URIPropertyProperty, value); }
        }

        // Using a DependencyProperty as the backing store for URIProperty.  This enables animation, styling, binding, etc...
        public static readonly DependencyProperty URIPropertyProperty =
            DependencyProperty.Register(nameof(URL), typeof(string), typeof(WebView2Ex), new PropertyMetadata(URLChanged));

        private static void URLChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
        {
            if (d is WebView2Ex)
            {
                if (e.NewValue is string newURL)
                {
                    ((WebView2Ex)d).model.URL = newURL;
                }
            }
        }
        #endregion



        public WebView2Ex()
        {
            CheckAndInstallEdge();

            InitializeComponent();

            this.DataContext = model = new WebView2ExViewModel();
        }

        private void CheckAndInstallEdge()
        {
            if (!CheckEdgeExist())
            {
                LogHelper.WriteLog("尝试安装edge 依赖");
                var path = "E:\\MicrosoftEdgeWebview2Setup.exe";

                //启动外部程序
                Process proc = Process.Start(path);
                //Process proc = Process.Start(path, "/silent /install");

                if (proc != null)
                {
                    //监视进程退出
                    proc.EnableRaisingEvents = true;
                    //指定退出事件方法
                    proc.WaitForExit();
                    //proc.Exited += new EventHandler(proc_Exited);
                }
            }
        }

        public static bool CheckEdgeExist()
        {
            try
            {
                string coreWebView2Environment = CoreWebView2Environment.GetAvailableBrowserVersionString();

                return !string.IsNullOrEmpty(coreWebView2Environment);
            }
            catch (System.Exception e)
            {
                LogHelper.WriteLog("校验本地edge版本失败", e);
            }

            return false;
        }

 private async void UserControl_Loaded(object sender, RoutedEventArgs e)
        {
            //跨域
            var path = AppDomain.CurrentDomain.BaseDirectory + "WebViewCache";
            var env = await CoreWebView2Environment.CreateAsync(userDataFolder: path,
                  browserExecutableFolder: null,
                  options: new CoreWebView2EnvironmentOptions("-disable-web-security --user-data-dir=D:/ChromeDevSession"));
            await webView.EnsureCoreWebView2Async(env);


            webView.CoreWebView2.NewWindowRequested += CoreWebView2_NewWindowRequested;

            webView.CoreWebView2.Settings.AreHostObjectsAllowed = true;

              
        }
    }