c# - 使用 RouteAttribute 时无法提交表单，提交到错误的 Action

Question

这是我的 Controller 操作:

HttpGet

// GET: ControllerName/Create
[Route("CreateDocument/{personId}")]
public ActionResult Create(int personId)
{
    var personDocumentation = new PersonDocumentation()
    {
        PersonId = pilotId
    };
    ViewBag.DocumentationTypeIdSelection = new SelectList(db.DocumentationTypes, "Id", "DocumentationTypeName");

    return View(personDocumentation);
}

HttpPost

[HttpPost]
[ValidateAntiForgeryToken]
public ActionResult Create([Bind(Include = "Id,PersonId,DateReceived,DocumentationTypeId,Filepath")] PersonDocumentation personDocumentation)
{
    if (ModelState.IsValid)
    {
        if (Request.Files.Count > 0)
        {
            // performing stuff here
        }

        db.PersonDocumentations.Add(personDocumentation);
        db.SaveChanges();
        return RedirectToAction("Index", "PersonDocumentations", new {pilotId = personDocumentation.PilotId});
    }

    ViewBag.DocumentationTypeId = new SelectList(db.DocumentationTypes, "Id", "DocumentationTypeName", personDocumentation.DocumentationTypeId);
    return View(personDocumentation);
}

View /表单

@using (Html.BeginForm("Create", "PersonDocumentations", FormMethod.Post, new {enctype = "multipart/form-data" }))
{
    // Form stuff here

    <div class="form-group">
        <input type="submit" value="Create" class="btn btn-lg btn-success" />
    </div>
}

调试时，在提交时我被重定向到具有路由属性的 HttpGet Create 操作。当相应的 Get 操作具有路由属性时，我可以提交到 Post Action 吗？

更新

在看了下面的 Nkosi 回答之后..我有这个:

[HttpGet]
[Route("CreateDocument/{personId}")]
public ActionResult Create(int personId)
{
    // stuff here
}

[HttpPost]
[Route("CreateDocument")]
[ValidateAntiForgeryToken]
public ActionResult Create([Bind(Include = "Id,PersonId,DateReceived,DocumentationTypeId,Filepath")] PersonDocumentation personDocumentation)
{
    // stuff here
}

在我的 View 页面上.. 要获得 HttpGet 操作，我有一个按钮链接:

@Html.ActionLink("Create New Documentation", "Create", new {personId = Model.PersonId}, new {@class = "btn btn-info"})

但是，当我将鼠标悬停在按钮上时，我会在左下角看到链接:

http://localhost:xxxxx/CreateDocument?personId=4

不应该是:

http://localhost:xxxxx/CreateDocument/4

当我从 HttpPost 操作中删除 Route 属性时，左下角的 url 显示为 http://localhost:xxxxx/CreateDocument/4

然后当我点击按钮时我收到 404 错误:

Requested Url:  /CreateDocument


public class RouteConfig
{
    public static void RegisterRoutes(RouteCollection routes)
    {
        routes.IgnoreRoute("{resource}.axd/{*pathInfo}");

        routes.MapMvcAttributeRoutes();

        routes.MapRoute(
            name: "Default",
            url: "{controller}/{action}/{id}",
            defaults: new { controller = "PersonInfo", action = "Index", id = UrlParameter.Optional }
        );
    }
}

Answer 1

您正在混合属性和基于约定的路由。

如果在 Controller 上使用属性路由，你需要全力以赴。当使用多个 Action 时，你还必须包含 [Http{Verb}] 以进一步区分 Action 路由。

public class PersonDocumentationsController : Controller {

    [HttpGet]
    public ActionResult Index() {
        //...
    }

    //GET CreateDocument/4
    [HttpGet]
    [Route("CreateDocument/{personId:int}")]
    public ActionResult Create(int personId) {
        //...
    }

    //POST CreateDocument/4
    [HttpPost]
    [Route("CreateDocument/{personId:int}")]
    [ValidateAntiForgeryToken]
    public ActionResult Create([Bind(Include = "Id,PersonId,DateReceived,DocumentationTypeId,Filepath")] PersonDocumentation personDocumentation) {
        //...
    }
}

这还假设没有 RoutePrefix 应用于 Controller 。

所以现在当你打电话的时候

@Html.BeginForm("Create", "PersonDocumentations", FormMethod.Post, new {enctype = "multipart/form-data" }))

在 PersonDocumentationsController.Create View 中，它将映射到正确的操作。

POST CreateDocument/4

对于操作链接，您还需要包含所需的 Controller

@Html.ActionLink("Create New Documentation", "Create", "PersonDocumentations" , new {personId = Model.PersonId}, new {@class = "btn btn-info"})

应该映射到

GET http://localhost:xxxxx/CreateDocument/4

引用 Attribute Routing in ASP.NET MVC 5