Using WebClient to ping a web site

问题

I have a tiny app that I wanting to run and ping an internal web site. Here is the code:

using (var client = new WebClient())
{
    client.DownloadString("http://MyServer/dev/MyApp");
}

However, it is throwing the following error:

The remote server returned an error: (401) Unauthorized.

I have all the correct credentials to access the server. I am thinking I don't know how to use WebClient very well and I just need to set properties on the client object. Any ideas?

回答1:

I found the answer. I needed to use the NetworkCredentials() method of WebClient. See below:

    using (var client = new WebClient())
    {
        client.Credentials = new NetworkCredential ("theUser", "thePassword", "theDomain"); 
        client.DownloadString("http://MyServer/dev/MyApp");
    }

This is the URL that helped me

来源：https://stackoverflow.com/questions/12202933/using-webclient-to-ping-a-web-site