Question

我有一个动作结果方法，里面正在做一个重定向（url）。我的问题是如何在进行重定向之前检查网址是否有效？

public ActionResult RedirectUser()
{
    var url = "/Cars/Model/1"; //this is the url

    // now i should check if the redirect return a 200 code (the url is valid) and if is valid I should redirect to that url, else i should redirect to "/Home/Index"

    if(this.Redirect(url))
    {
       return this.Redirect(url);
    }
    else
    {
       return this.RedirectToAction("Index", "Home");
    }

    return this.RedirectToAction("Index", "Home");
}

任何人都可以帮我一个例子吗？我在谷歌搜索，但我找不到任何帮助我。感谢

Answer 1

试试这个

public ActionResult RedirectUser()
{
    var url = "/Cars/Model/1"; //this is the url

     var controller = RouteData.Values["controller"].ToString();
 var action = RouteData.Values["action"].ToString();

    if(controller=="car"&& action=="Model")
    {
       return this.Redirect(url);
    }
    else
    {
       return this.RedirectToAction("Index", "Home");
    }

    return this.RedirectToAction("Index", "Home");
}

Answer 2

假设您尝试重定向到的网址在MVC应用程序的控制之下，您可以使用网址助手Url.Action来保证其有效。

Url.Action("Model","Cars", new {id=1});
//should yield "Cars/Model/1 if your routing is configured to have id to be optional as below:
routes.MapRoute(
                name: "Default",
                url: "{controller}/{action}/{id}",
                defaults: new { controller = "Cars", action = "Model", id = UrlParameter.Optional }
            );

警告：您的示例代码可能无法反映您的产品代码，但网址不应以您的方式进行硬编码。当汽车＆＃34;汽车＆＃34;在部署环境中不是应用程序的根目录。

Answer 3

您可以使用HttpClient发送get请求，如下所示：

using (var client = new HttpClient())
{
    HttpResponseMessage response = await client.GetAsync("Cars/Model/1");
    if (response.IsSuccessStatusCode)
    {
         // redirect here
    }
}

在ASP MVC中重定向到url

3 个答案: