Question

我试图在www.digikey.com下获取网页的网页源代码它工作得很好很久但现在网站拒绝了请求，但它在网络浏览器中显示没有问题，当尝试通过代码访问时发生问题，当我检查现在收到的页面已经写了

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我使用的代码是：

    Dim PartURL As String
    PartURL = "http://www.digikey.com"
    Dim request As System.Net.HttpWebRequest = System.Net.HttpWebRequest.Create(PartURL)
    Dim response As System.Net.HttpWebResponse = request.GetResponse()
    Dim sr As System.IO.StreamReader = New System.IO.StreamReader(response.GetResponseStream())
    Dim sourcecode As String = sr.ReadToEnd()

当我将网址更改为google.com时，它运行良好。网站www.digikey.com在网络浏览器中没有问题。它仅在尝试通过代码访问时显示错误。所以我认为它可能与代码有关。是因为digikey拒绝了这个请求。有什么办法可以在www.digikey.com下获得页面源代码

Answer 1

试试这个：

Dim PartURL As String
PartURL = "http://www.digikey.com"
Dim request As System.Net.HttpWebRequest = System.Net.HttpWebRequest.Create(PartURL)
request.UserAgent = "Mozilla/5.0 (Windows NT 5.1; rv:2.0b8) Gecko/20100101 Firefox/4.0b8"
request.Accept = "Accept: text/html,application/xhtml+xml,application/xml"

Dim response As System.Net.HttpWebResponse = request.GetResponse()
Dim sr As System.IO.StreamReader = New System.IO.StreamReader(response.GetResponseStream())
Dim sourcecode As String = sr.ReadToEnd()

网站在Visual Basic中拒绝HttpWebRequest

1 个答案: