CefApp.addAppHandler(new CefAppHandlerAdapter(null) {
            @Override
            // 实现此方法以获取CefApp的状态更改。
            public void stateHasChanged(CefApp.CefAppState cefAppState) {
                // 如果本机 CEF 部分终止，则关闭整个应用程序
                if (cefAppState == CefApp.CefAppState.TERMINATED) {
                    System.exit(0);
                }
            }
            @Override
            public void onBeforeCommandLineProcessing(String process_type, CefCommandLine cefCommandLine) {
                // 设置谷歌浏览器相关权限
                String[] args = new String[]{
                        "--enable-media-stream", // 添加用户媒体使用权限
                        //"--autoplay-policy=no-user-gesture-required",
                        //"autoplay-policy=no-user-gesture-required"
                };
                for (String arg : args) {
                    cefCommandLine.appendSwitch(arg);
                }
            }
        });