ASP.NET Core 1.0 F#项目

Question

有人可以分享用F#编写的最小工作ASP.NET核心应用程序项目吗？

要在C#中实现最小的演示,我们必须执行以下操作:

mkdir aspnetcoreapp
cd aspnetcoreapp
dotnet new

然后编辑project.json:

{
  "version": "1.0.0-*",
  "buildOptions": {
    "debugType": "portable",
    "emitEntryPoint": true
  },
  "dependencies": {},
  "frameworks": {
    "netcoreapp1.0": {
      "dependencies": {
        "Microsoft.NETCore.App": {
          "type": "platform",
          "version": "1.0.0"
        },
        "Microsoft.AspNetCore.Server.Kestrel": "1.0.0"
      },
      "imports": "dnxcore50"
    }
  }
}

然后执行dotnet restore并使用以下代码:

Startup.cs:

using System;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Http;

namespace aspnetcoreapp
{
    public class Startup
    {
        public void Configure(IApplicationBuilder app)
        {
            app.Run(context =>
            {
                return context.Response.WriteAsync("Hello from ASP.NET Core!");
            });
        }
    }
}

Program.cs:

using System;
using Microsoft.AspNetCore.Hosting;

namespace aspnetcoreapp
{
    public class Program
    {
        public static void Main(string[] args)
        {
            var host = new WebHostBuilder()
                .UseKestrel()
                .UseStartup<Startup>()
                .Build();

            host.Run();
        }
    }
}

然后执行dotnet run.任何人都可以给我一个提示如何在F#中做同样的事情？

Answer 1

我想你要找的是--lang开关.

因此获得基础F#项目的唯一变化是:

dotnet new --lang fsharp

然后,您可以按照Pavel对实际ASP.NET逻辑的回答.

编辑:

顺便说一句,fsharp也可以替换为f#和fsPR一样.

还有另一个问题,即建议更改dotnet new以允许模板.

编辑2:

新工具支持更多模板:

Templates                                 Short Name      Language      Tags
--------------------------------------------------------------------------------------
Console Application                       console         [C#], F#      Common/Console
Class library                             classlib        [C#], F#      Common/Library
Unit Test Project                         mstest          [C#], F#      Test/MSTest
xUnit Test Project                        xunit           [C#], F#      Test/xUnit
Empty ASP.NET Core Web Application        web             [C#]          Web/Empty
MVC ASP.NET Core Web Application          mvc             [C#], F#      Web/MVC
Web API ASP.NET Core Web Application      webapi          [C#]          Web/WebAPI
Solution File                             sln                           Solution

用法示例:

X:\>dotnet new mvc -n MyFsharpProject -lang F#
Content generation time: 309.5706 ms
The template "MVC ASP.NET Core Web Application" created successfully.

Answer 2

我最近一直在探索新的.net核心并面临同样的问题.实际上,这很容易做到.

将F#运行时引用添加到您的project.json:

{
  "version": "1.0.0-*",
  "buildOptions": {
    "emitEntryPoint": true,
    "compilerName": "fsc",
    "compile": "**/*.fs"
  },
  "dependencies": {
    "Microsoft.FSharp.Core.netcore": "1.0.0-alpha-160509",
    "Microsoft.AspNetCore.Server.Kestrel": "1.0.0"
  },
  "tools": {
    "dotnet-compile-fsc": {
      "version": "1.0.0-preview2-*",
      "imports": [
        "dnxcore50",
        "portable-net45+win81",
        "netstandard1.3"
      ]
    }
  },
  "frameworks": {
    "netcoreapp1.0": {
      "dependencies": {
        "Microsoft.NETCore.App": {
          "type": "platform",
          "version": "1.0.0"
        }
      },
      "imports": [
        "portable-net45+win8",
        "dnxcore50"
      ]
    }
  }
}

然后将下面的代码放入您的Program.fs:

open System
open Microsoft.AspNetCore.Hosting
open Microsoft.AspNetCore.Builder
open Microsoft.AspNetCore.Hosting
open Microsoft.AspNetCore.Http


type Startup() = 
    member this.Configure(app: IApplicationBuilder) =
      app.Run(fun context -> context.Response.WriteAsync("Hello from ASP.NET Core!"))


[<EntryPoint>]
let main argv = 
    let host = WebHostBuilder().UseKestrel().UseStartup<Startup>().Build()
    host.Run()
    printfn "Server finished!"
    0

只是顺便说一下,这是非常重要的定义如启动类type Startup()没有type Startup.否则,Kestrel运行时将在启动期间崩溃.