asp.net-mvc - 使用 ASP.NET MVC 中的路由和 Controller 自动生成 XML 站点地图

Question

是否可以通过迭代路由和应用程序的 Controller 操作来自动为搜索引擎生成 XML 站点地图？如果你能给我一个想法，我将不胜感激。谢谢。

Answer 1

像这样创建一个属性并将其应用于您希望作为 sitemap.xml 文件中的页面的任何方法。

/// <summary>
/// This attribute indicates that a method is an actual page and gives the data for it
/// </summary>
[AttributeUsage(AttributeTargets.Class | AttributeTargets.Method, Inherited = true, AllowMultiple = false)]
public class MVCUrlAttribute : ActionFilterAttribute
{
    public string Url { get; private set; }

    public MVCUrlAttribute(string url)
    {
        this.Url = url;
    }

    public override void OnResultExecuting(ResultExecutingContext filterContext)
    {
        string fullyQualifiedUrl = filterContext.HttpContext.Request.Url.GetLeftPart(UriPartial.Authority) + this.Url;
        // We build HTML here because we want the View to be easily able to include it without any conditionals
        // and because the ASP.NET WebForms view engine sometimes doesn’t subsitute <% in certain head items
        filterContext.Controller.ViewData["CanonicalUrl"] = @”<link rel=”"canonical”" href=”"” + fullyQualifiedUrl + ” />”;
        base.OnResultExecuting(filterContext);
    }
}

现在使用反射来查找所有这些“页面”:-

 List<string> allPageUrls = new List<string>();

 // Find all the MVC Routes
 Log.Debug(“*** FINDING ALL MVC ROUTES MARKED FOR INCLUSION IN SITEMAP”);
 var allControllers = Assembly.GetExecutingAssembly().GetTypes().Where(t => t.IsSubclassOf(typeof(Controller)));
 Log.DebugFormat(“Found {0} controllers”, allControllers.Count());

 foreach (var controllerType in allControllers)
 {
     var allPublicMethodsOnController = controllerType.GetMethods(BindingFlags.Public | BindingFlags.Instance);
     Log.DebugFormat(“Found {0} public methods on {1}”, allPublicMethodsOnController.Count(), controllerType.Name);

     foreach (var publicMethod in allPublicMethodsOnController)
     {
         var mvcurlattr = publicMethod.GetCustomAttributes(true).OfType<MVCUrlAttribute>().FirstOrDefault();
         if (mvcurlattr != null)
         {
             string url = mvcurlattr.Url;
             Log.Debug(“Found “ + controllerType.Name + “.” + publicMethod.Name + ” <– “ + url);
             allPageUrls.Add(url);
         }
     }
 }

现在从这个列表构建 sitemap.xml 文件。

另请注意，ActionFilter 将规范 URL 放入您的 View 模型中，因此即使您有重复的内容，您也可以轻松地使所有页面搜索引擎友好。

您不能通过路由执行此操作，因为您的整个应用程序 {controller}/{action} 可能只有一个路由。

更多信息:- http://blog.abodit.com/2010/02/sitemap-xml-asp-net-aspnet-mvc/