c# - 如何在 ASP.NET C# 中获取网页源代码？

Question

如何在 C# ASP.NET 中获取页面的 HTML 代码？

示例:http://google.com

如何通过 ASP.NET C# 获取此 HTML 代码？

Answer 1

WebClient类将做你想做的事:

string address = "http://stackoverflow.com/";   

using (WebClient wc = new WebClient())
{
    string content = wc.DownloadString(address);
}

如评论中所述，您可能更喜欢使用 DownloadString 的异步版本以避免阻塞:

string address = "http://stackoverflow.com/";

using (WebClient wc = new WebClient())
{
    wc.DownloadStringCompleted +=
        new DownloadStringCompletedEventHandler(DownloadCompleted);
    wc.DownloadStringAsync(new Uri(address));
}

// ...

void DownloadCompleted(object sender, DownloadStringCompletedEventArgs e)
{
    if ((e.Error == null) && !e.Cancelled)
    {
        string content = e.Result;
    }
}