自從微軟推出MVC後，每隔一段時間，就有新版本MVC出現，目前據說最大幅度的變化是MVC 6，微軟已經釋出MVC 6測試版，所以想下戴體驗看看MVC6的改變寫法，也提供相關經驗給有興趣的人參考看看。
一、 建立Asp.net VNext WebAPI
步驟1: 新增Asp.net 5 preview Empty
步驟2: 在Project.json 手動注入Microsoft.AspNet.Diagnostics、Microsoft.AspNet.Mvc
Project.json
{
"webroot": "wwwroot",
"version": "1.0.0-*",
"dependencies": {
"Microsoft.AspNet.Server.IIS": "1.0.0-beta3",
"Microsoft.AspNet.Diagnostics": "1.0.0-beta3", //注入Diagnostics
"Microsoft.AspNet.Mvc": "6.0.0-beta3", //注入 MVC
},
"frameworks": {
"aspnet50": { },
"aspnetcore50": { }
},
"bundleExclude": [
"node_modules",
"bower_components",
"**.kproj",
"**.user",
"**.vspscc"
],
"exclude": [
"wwwroot",
"node_modules",
"bower_components"
]
}
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Starup.cs
using System;
using Microsoft.AspNet.Builder;
using Microsoft.AspNet.Http;
using Microsoft.Framework.DependencyInjection;
namespace WebApplication1
{
public class Startup
{
public void ConfigureServices(IServiceCollection services)
{
services.AddMvc(); //加上這一行
}
public void Configure(IApplicationBuilder app)
{
app.UseWelcomePage();//加上這一行
app.UseMvc();//加上這一行
}
}
}
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asp.net Vnext預設畫面
步驟3:加入model
請手動增加model資料夾，並新增class
public class TodoItem
{
public int Id
{
get; set;
}
[Required]
public string Title
{
get; set;
}
public bool IsDone
{
get; set;
}
}
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步驟4:加入Controller
[Route("api/[controller]")]
: 呼叫web API的網址http://.../api/controlllerName
namespace
WebApplication1.Controllers
{
[Route("api/[controller]")]
public class HomeController : Controller
{
static readonly List<TodoItem> _items = new List<TodoItem>()
{
new TodoItem { Id = 1, Title = "First
Item" }
};
[HttpGet]
public IEnumerable<TodoItem> GetAll()
{
return _items;
}
[HttpGet("{id:int}", Name = "GetByIdRoute")]
public IActionResult GetById(int id)
{
var item = _items.FirstOrDefault(x
=> x.Id == id);
if (item == null)
{
return HttpNotFound();
}
return new ObjectResult(item);
}
}
}
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步驟5: 在專案à右鍵à properties
可以自訂port
步驟6:下戴Google Chrome 的應用程式Postman
因為Web API 只會對應協定(POST/GET/DELETE/PUT/PATCH…等等)，再搭配參數輸入，所以呼叫/api/Home 會呼叫到GetAll()(HttpGet 協定 不帶參數)
[HttpGet]
public IEnumerable<TodoItem> GetAll()
{
return _items;
}
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輸入網址:
http://localhost:5000/api/Home/1
呼叫/api/Home/1
會呼叫httpGet協定, 並且有int參數的GetById的函式
[HttpGet("{id:int}", Name = "GetByIdRoute")]
public IActionResult GetById(int id)
{
var item = _items.FirstOrDefault(x
=> x.Id == id);
if (item == null)
{
return HttpNotFound();
}
return new ObjectResult(item);
}
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參考資料:
