Question

可以从Html Agility Pack HttpWebResponse获取HtmlWeb吗？

如同，如果我打电话：

HtmlWeb web = new HtmlWeb ();
HtmlDocument document = web.Load ("http://stackoverflow.com/");

是否有方便的方法从HttpWebResponse实例中检索web以查看标题 - 例如检索内容类型等标题属性？

有前任和后任代表，可以工作：

HtmlWeb web = new HtmlWeb ();

web.PreRequest = delegate (HttpWebRequest request) {
    request.Timeout = 10 * 1000;
    return true;
};
web.PostResponse = delegate (HttpWebRequest request, HttpWebResponse response) {
    //response.Headers;
    //response.ContentType;
};

HtmlDocument document = web.Load ("http://stackoverflow.com/");

相反，有没有办法让响应像：(HttpWebResponse)web.GetResponse();

Answer 1

您可以使用TaskCompletionSource + async / await

var web = new HtmlAgilityPack.HtmlWeb();
var tcs = new TaskCompletionSource<HttpWebResponse>();

web.PostResponse = delegate(HttpWebRequest request, HttpWebResponse response)
{
    tcs.SetResult(response);
};

var  document = web.Load("http://stackoverflow.com/");
var httpWebResponse = await tcs.Task;

从Html Agility Pack HtmlWeb获取HttpWebResponse

1 个答案: