Question

如何为NotFoundObjectResult结果创建自定义页面？

实际上，当我返回此结果时，应用程序仅在页面中显示id。

return new NotFoundObjectResult(id);

我需要重定向到＆＃34; / errors / notfound＆＃34;每次得到NotFoundObjectResult。

Answer 1

您可以将app.UseStatusCodePagesWithReExecute或app.UseStatusCodePagesWithRedirect添加到管道（app.UseMvc之前）。这将截取状态代码介于400和600之间的任何响应还没有正文。

在你的启动课程中：

app.UseStatusCodePagesWithReExecute("/statuscode/{0}");

然后添加一个新的控制器：

public class HttpStatusController: Controller
{
    [HttpGet("statuscode/{code}")]
    public IActionResult Index(HttpStatusCode code)
    {
        return View(code);
    }
}

并添加一个视图Views / HttpStatus / Index.cshtml：

@model System.Net.HttpStatusCode
@{
    ViewData["Title"] = "Error " + (int)Model;
}

<div class="jumbotron">
    <h1>Error @((int)Model)!</h1>
    <p><a asp-area="" asp-controller="Home" asp-action="Index">Home</a></p>
</div>

现在您只需要从控制器返回所需的状态代码，而无需添加任何可选的正文：

//These would end up in the new HttpStatus controller, they just specify the status code
return StatusCode(404);
return new StatusCodeResult(404);

//Any of these won't, as they add either the id or an object to the response's body
return StatusCode(404, 123);
return StatusCode(404, new { id = 123 });
return new NotFoundObjectResult(123);

asp.net核心中NotFoundObjectResult的自定义页面

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