如何获得在ASP.NET C＃中的网页源？ [英] How to get the webpage source in ASP.NET C#?

问题描述

我怎样才能获得在C＃ASP.NET页面的HTML code？

How can I get the HTML code of a page in C# ASP.NET?

例如： http://google.com

我如何能够通过ASP.NET C＃得到这个HTML code？

How I can get this HTML code by ASP.NET C#?

推荐答案

Web客户端 类会做你想要什么：

The WebClient class will do what you want:

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

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

由于在评论中提到，你可能preFER使用 DownloadString 的异步版本，以避免阻塞：

As mentioned in the comments, you might prefer to use the async version of DownloadString to avoid blocking:

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;
    }
}

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