我正在尝试将webform网址重定向到.net核心。 假设用户在URL中输入了 www.test.com/index.aspx ,它将重定向到 www.test.com/home/index
所以在HomeController,IActionResult Index方法中,如何检测到它是从index.aspx重定向到home / index?
我的研究表明它会像下面这样,但它们与.net核心不兼容
var request = (HttpWebRequest)WebRequest.Create(uri);
request.Method = "HEAD";
request.AllowAutoRedirect = false;
string location;
using (var response = request.GetResponse() as HttpWebResponse)
{
location = response.GetResponseHeader("Location");
}
非常感谢帮助。
答案 0 :(得分:1)
您的代码与.Net Core 1.1不兼容,但与.Net Core 2.0兼容。因此,如果可能,只需更改目标框架。
您还应该稍微调整一下代码。如果重定向发生,.Net Core HttpWebRequest.GetResponse()
方法将抛出WebException
。所以你应该试着抓住它并分析WebException.Response
:
try
{
using (request.GetResponse() as HttpWebResponse)
{
}
}
catch (WebException e)
{
var location = e.Response.Headers["Location"];
}
但我建议使用HttpClient
作为替代方案。它将允许您在没有异常处理的情况下完成工作:
using (HttpClientHandler handler = new HttpClientHandler())
{
handler.AllowAutoRedirect = false;
using (HttpClient httpClient = new HttpClient(handler))
using (HttpRequestMessage request = new HttpRequestMessage(HttpMethod.Head, uri))
using (var response = await httpClient.SendAsync(request))
{
var location = response.Headers.Location;
}
}
HttpClient
方法适用于.Net Core 1.1和2.0版本。
<强>更新强>
IsRedirected
中没有与HttpResponseMessage
属性相似的内容,但您可以使用简单的扩展方法:
public static class HttpResponseMessageExtensions
{
public static bool IsRedirected(this HttpResponseMessage response)
{
var code = response.StatusCode;
return code == HttpStatusCode.MovedPermanently || code == HttpStatusCode.Found;
}
}
bool redirected = response.WasRedirected();