从本机 ActiveX 控件获取 IWebBrowser2 失败。

落日赌城 2015-11-10 12:03:44

需要在WebFrom中实现一个网页抓取功能，里面用到了System.Windows.Forms.WebBrowser控件，功能已经实现，用VS IISExpress运行没问题，可以取到数据。但一部署到IIS上就出问题了，请各位大神帮忙指导一下，谢谢！
核心代码



static System.Windows.Forms.WebBrowser wb;



        private static string url ="http://www.baidu.com";





        private static List<MyCount> myCounts = new List<MyCount>();



        [STAThread]

        protected void Page_Load(object sender, EventArgs e)

        {

            try

            {

                System.Threading.Thread t = new System.Threading.Thread(new ThreadStart(() =>

                {

                    wb = new System.Windows.Forms.WebBrowser();

                    wb.DocumentCompleted += wb_DocumentCompleted;

                    wb.Navigate(url); 

                    while (wb.ReadyState != System.Windows.Forms.WebBrowserReadyState.Complete)

                    {

                        System.Windows.Forms.Application.DoEvents(); //避免假死，若去掉则可能无法触发 DocumentCompleted 事件。

                    }

                })

                          );

                t.SetApartmentState(ApartmentState.STA);

                t.Start();

            }

            catch (Exception exception)

            {

                Response.Write(exception.Message);

            }

        }



void wb_DocumentCompleted(object sender, System.Windows.Forms.WebBrowserDocumentCompletedEventArgs e)

        {

            myCounts = new List<MyCount>();

            if (wb.ReadyState == WebBrowserReadyState.Complete && wb.IsBusy == false)

            {

                HtmlDocument doc = wb.Document; //抓取网页

                HtmlElement hem = doc.GetElementById("list");//这里就像js里面一样通过ID来查找对象

             

                for (int i = 0; i < hem.Children.Count; i++)

                {

                    string innertext = hem.Children[i].InnerText.Trim();

                    string[] temps = innertext.Split(' '); 

                     

                    myCounts.Add(new MyCount() { Name = temps[0], Number = temps[1] });

                } 

            }

            else

            {

                Response.Write(wb.ReadyState.ToString());

            }

        }