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Learning ASP.NET core + Angular2 系列 第 2

[ASP.NET Core] Set Routing

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Introduction


In this article, we will know how to

  • Set an Areas routing rule (template)
  • Use Route attribute in MVC
  • Use Route attribute in WebApi

Environment


  • Visual Studio 2015 Update 3
  • Visual Studio 2015 DotNetCore tools – preview 2
  • DotNetCore 1.0.0 Runtime

Implement


Set an Areas routing rule (template)

We can find the default route template in Startup.cs : Configure
Add the following red codes to support Area routing ruls.

public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory)
{
    //…Skip
    app.UseMvc(routes =>
    {
       routes.MapRoute(
              name:"areaRoute", 
              template:"{area:exists}/{controller=Home}/{action=Index}/{id?}");

       routes.MapRoute(
              name: "default",
              template: "{controller=Home}/{action=Index}/{id?}");
     });
}

Enable Areas routing in MVC:Controller

Now create Areas, for example,

To enable Areas routing, use Area and Route attributes like this,

[Area("User")]
[Route("User/[controller]")]
public class AuthController : Controller
{
       [Route("[action]")]
        public IActionResult Index()
        {
            ViewBag.Title = "Index";
            return View();
        }

        [Route("[action]")]
        public IActionResult Create()
        {
            ViewBag.Title = "Create";

            return View();
        }

        //[Route("[action]/{page}")] //It's ok to write like this
        [Route("[action]/{page:int?}")]
        public IActionResult Edit(int? page)
        {
            ViewBag.Title = "Edit";
            ViewBag.Page = page;

            return View();
        }

        [Route("[action]/{data}")]
        public IActionResult Edit(String data)
        {
            ViewBag.Title = "Edit";
            ViewBag.Page = data;

            return View();
        }

}

Enable Areas routing in WebApi:Controller

There is no need to add routing template in WebApi Startup.cs
Just put Route attribute to assign the routing rules for WebApi’s controllers and actions (Restful methods).

[Route("api/User/[controller]")]
public class AuthController : Controller
{
        [HttpGet("GetAll")]
        public IEnumerable<string> Get()
        {
            return new string[] { "auth1", "auth2" };
        }

        [HttpGet("Get/{id}")]
        public string Get(int id)
        {
            return id.ToString();
        }

        // POST api/values
        [HttpPost]
        public void Post(DtoModel model)
        {
        }

        // DELETE api/values/5
        [HttpDelete("Delete/{id}")]
        public void Delete(int id)
        {
        }
}

Note that you can add an action name in Http Method attribute like the following to define the action name for the action

[HttpGet("GetAll")]
public IEnumerable<string> Get()

And the HttpGet url will be
http://localhost:14125/api/user/auth/getall

Results in Postman:

Reference

  1. Microsoft ASP.NET Core Documentation

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[ASP.NET Core] Build MVC website with Entity Framework Core
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[Entity Framework core] CLI migrations
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