ASP.NET Core 1.0 F#项目

发布时间：2020-12-16 00:19:41 所属栏目：asp.Net 来源：网络整理

导读：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 aspnetcoreappcd aspnetcoreappdotnet new 然后编辑project.json： { "version": "1.0.0-*","buildOptions": { "debugType": "portable",

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还原并使用以下代码：

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中：

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运行。任何人都可以给我一个提示如何在F#中做同样的事情？

解决方法

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project.json中：

{
  "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"
      ]
    }
  },"version": "1.0.0"
        }
      },"imports": [
        "portable-net45+win8","dnxcore50"
      ]
    }
  }
}

然后将下面的代码放入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

顺便说一句，定义你的Startup类非常重要，比如Startup()类型不要键入Startup。否则，Kestrel运行时将在启动期间崩溃。

（编辑：李大同）

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