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标题: 在asp.net使用WebBrowser抓取ajax信息问题 [打印本页]

作者: donghang 时间: 2014-8-17 10:10
标题: 在asp.net使用WebBrowser抓取ajax信息问题
贴上代码
public class WebBrowserCrawler
{
      private WebBrowser _webbrowder;
      private string _result { get; set; }
      private string _path { get; set; }

      public string GetReult(string url)
      {
         _path = url;

         var mThread = new Thread(FatchDataToResult);
         mThread.SetApartmentState(ApartmentState.STA);
         mThread.Start();
         mThread.Join();

         return _result;

      }

      private void FatchDataToResult()
      {

            _webbrowder = new WebBrowser();
            _webbrowder.DocumentCompleted += _webbrowder_DocumentCompleted;
            _webbrowder.Url = new Uri(_path);

            while (_webbrowder.ReadyState != WebBrowserReadyState.Complete)
            {
                  Application.DoEvents();
            }
            _webbrowder.Dispose();

      }

      void _webbrowder_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
      {
            HtmlDocument doc = (sender as WebBrowser).Document;
            HtmlElement uinList = doc.GetElementById("list_uin");
            _result = uinList.OuterHtml;

      }
}

调用
WebBrowserCrawler wc = new WebBrowserCrawler();
string str = wc.GetReult(url);

在VS里面测试运行正常，挂到IIS6.0上面就出问题。网页一直加载无反应。
错误信息：
Application: w3wp.exe
Framework Version: v4.0.30319
Description: The process was terminated due to an unhandled exception.
Exception Info: System.Runtime.InteropServices.COMException
Stack:
at System.Windows.Forms.WebBrowser.PerformNavigate2(System.Object ByRef, System.Object ByRef, System.Object ByRef, System.Object ByRef, System.Object ByRef)
at System.Windows.Forms.WebBrowser.set_Url(System.Uri)
at msjy.game.WebBrowserCrawler.FatchDataToResult()
at System.Threading.ThreadHelper.ThreadStart_Context(System.Object)
at System.Threading.ExecutionContext.runTryCode(System.Object)
at System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(TryCode, CleanupCode, System.Object)
at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object)
at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object)
at System.Threading.ThreadHelper.ThreadStart()

作者: ching126 时间: 2014-9-5 23:45
我只是路过打酱油的。

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