我创建了一个使用WebBrowser控件来删除一些文本数据的类,它最初在Windows窗体应用程序中运行,现在我将其转换为控制台应用程序,为此我在一个线程中运行我的类,在STA中设置它,然后在我的类中我使用" new"以正常方式实例化WebBrowser。关键字,我的问题是当线程完成时它永远不会真正结束,当我使用Thread.Join()时,我进入无休止的等待,如果我使用Application.ThreadExit()没有任何反应,所以我尝试了Thread.Abort(),并且这样可以随机抛出异常,我的问题是运行需要在Console应用程序中实例化WebBrowser的类的正确方法。
这就是我为班级创建线程的方法:
var th = new Thread(() =>
{
var br = MyBrowsingClass;
br.NavigateTo(url);
System.Windows.Forms.Application.Run();
});
th.SetApartmentState(ApartmentState.STA);
th.Start();
return th;
在课堂上我做了以下几点:
wb = new WebBrowser();
wb.ScriptErrorsSuppressed = true;
wb.DocumentCompleted += new WebBrowserDocumentCompletedEventHandler(OnWebComplete);
CurrentState = Status.Navigating;
if (IsValidURL(GoogleQueryURL))
{
wb.NavigateTo(GoogleQueryURL);
}
答案 0 :(得分:0)
您应该使用WebRequest
类,因为我认为您需要内容而不是交互式浏览器。这将消除使用带有额外线程的消息泵(Application.Run()
)。
using System;
using System.IO;
using System.Net;
using System.Text;
namespace Examples.System.Net
{
public class WebRequestGetExample
{
public static void Main ()
{
// Create a request for the URL.
WebRequest request = WebRequest.Create ("http://www.contoso.com/default.html");
// If required by the server, set the credentials.
request.Credentials = CredentialCache.DefaultCredentials;
// Get the response.
HttpWebResponse response = (HttpWebResponse)request.GetResponse ();
// Display the status.
Console.WriteLine (response.StatusDescription);
// Get the stream containing content returned by the server.
Stream dataStream = response.GetResponseStream ();
// Open the stream using a StreamReader for easy access.
StreamReader reader = new StreamReader (dataStream);
// Read the content.
string responseFromServer = reader.ReadToEnd ();
// Display the content.
Console.WriteLine (responseFromServer);
// Cleanup the streams and the response.
reader.Close ();
dataStream.Close ();
response.Close ();
}
}
}
来自msdn的SOURCE