Question

我正在开发像博客引擎这样的应用程序。在主页视图中，我有一个链接

<a href="/Blog/BlogEntry/2013/05/22/title for this blog entry" />

当用户点击该链接时，它将转到Blog控制器并在那里运行BlogEntry操作

public class BlogController : Controller {
   public ActionResult BlogEntry(string title, DateTime createdDate) {
       // doing something
       var viewModel = something here for build the view model

       return View(viewModel);
   }
}

问题是我该怎么做？

Answer 1

这样做，因为所有参数都将从URL映射。使用操作过滤器以您希望的方式映射数据。我没有完全测试代码，但它会给出票价的想法。在操作上方添加此属性。

   public ActionResult BlogEntry(int year, int month , int day , string title)

    using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Web;
     using System.Web.Mvc;

    namespace OurAttributes
    {
     public class PopulateTitleDandDateAttribute : ActionFilterAttribute
     {
    public override void OnActionExecuting(ActionExecutingContext filterContext)
    {

                string[] url = filterContext.HttpContext.Request.Uri.split('/');
                DateTime d = new Date(url[2],url[3],url[4]);
                if (filterContext.ActionParameters.ContainsKey("createdDate"))
                {
                    filterContext.ActionParameters["createdDate"] = d;
                }

                if (filterContext.ActionParameters.ContainsKey("title"))
                {
                    filterContext.ActionParameters["title"] = url[5] ;
                }
                base.OnActionExecuting(filterContext);


    }
  }
 }

Answer 2

正如Devesh的建议，我在他的代码中修改了一些东西，并且它有效

控制器：

[HttpGet]
[PopulateTitleDandDate]
public ActionResult BlogEntry(string title, DateTime createdDate)
{
    var viewModel = new BlogEntryModel
        {
            Tittle = title,
            CreatedDate = createdDate
        };

    return View(viewModel);
}

PopulateTitleDandDateAttribute

public class PopulateTitleDandDateAttribute : ActionFilterAttribute
{
    public override void OnActionExecuting(ActionExecutingContext filterContext)
    {
        var url = filterContext.HttpContext.Request.RawUrl.Split('/');
        if (url.Length >= 7) // TODO: it is actually not good here
        {
            var d = new DateTime(url[3].ConvertToInteger(), url[4].ConvertToInteger(), url[5].ConvertToInteger());
            if (filterContext.ActionParameters.ContainsKey("createdDate"))
            {
                filterContext.ActionParameters["createdDate"] = d;
            }

            if (filterContext.ActionParameters.ContainsKey("title"))
            {
                filterContext.ActionParameters["title"] = url[6];
            }
        }

        base.OnActionExecuting(filterContext);
    }
}

BlogEntry.cshtml

@model SampleApplication.Controllers.BlogEntryModel

<h2>@Html.Raw(Model.Tittle) (@Html.Raw(Model.CreatedDate))</h2>

再次感谢Devesh。

实现博客条目链接

2 个答案: