如何在南希显示我的404页面？

Question

我需要在Nancy中显示我的404错误页面

if (ErrorCode == 404)
{
  return View["404.html"];
}

怎么做？

Answer 1

nemesv的答案是正确的,但我只是想使用ViewRenderer而不是GenericFileResponse添加一个例子.

public class MyStatusHandler : IStatusCodeHandler
{
    private IViewRenderer viewRenderer;

    public MyStatusHandler(IViewRenderer viewRenderer)
    {
        this.viewRenderer = viewRenderer;
    }

    public bool HandlesStatusCode(HttpStatusCode statusCode,
                                  NancyContext context)
    {
        return statusCode == HttpStatusCode.NotFound;
    }

    public void Handle(HttpStatusCode statusCode, NancyContext context)
    {
        var response = viewRenderer.RenderView(context, "/status/404");
        response.StatusCode = statusCode;
        context.Response = response;
    }
}

Answer 2

您只需要提供IStatusCodeHandler界面的实现(它将由Nancy自动选取).

在HandlesStatusCode方法中返回true为HttpStatusCode.NotFound.

在该Handle方法中,您需要Response在NancyContext包含错误页面内容的响应上设置属性.你可以使用例如GenericFileResponse:

public class My404Hander : IStatusCodeHandler
{
    public bool HandlesStatusCode(HttpStatusCode statusCode, 
                                  NancyContext context)
    {
        return statusCode == HttpStatusCode.NotFound;
    }

    public void Handle(HttpStatusCode statusCode, NancyContext context)
    {
        var response = new GenericFileResponse("404.html", "text/html");
        response.StatusCode = statusCode;
        context.Response = response;            
    }
}