如何将.NET 8.0的ASP.NET Core Web API部署成Windows服务

2024-03-14 前端 0

写在前面

前面写了一篇关于将.NET应用转换成Windows服务的方法，其实真正的目的是为了探索如何将Asp.Net Core Web Api 部署成Windows 服务。基于上一篇的基础，只需把创建 WebApplication 的代码放到 BackgroundService 的ExecuteAsync方法中即可。

其中比较重要的一个细节就是需要指定一下配置：

host.ConfigureAppConfiguration((hostingContext, config) => {
config.AddJsonFile("appsettings.json", optional: true, reloadOnChange: true);
config.AddEnvironmentVariables();
});

appsettings.json 的内容如下：

{  "Logging": {    "LogLevel": {      "Default": "Information",      "Microsoft.AspNetCore": "Warning"    }  },  "AllowedHosts": "*",  "urls": "http://localhost:6001",  "server.urls": "http://localhost:6001"}

重点部分：

"urls": "http://localhost:6001",
"server.urls": "http://localhost:6001"

代码实现

using System.Runtime.InteropServices;using System.Text.Json.Serialization;using Microsoft.Extensions.Hosting;public class Program{    public static void Main(string[] args)    {        CreateHostBuilder(args).Build().Run();    }    public static IHostBuilder CreateHostBuilder(string[] args)    {        var host = Host.CreateDefaultBuilder(args);        //判断当前系统是否为windows        if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))        {            host.UseWindowsService();        }        host.ConfigureAppConfiguration((hostingContext, config) => {            config.AddJsonFile("appsettings.json", optional: true, reloadOnChange: true);            config.AddEnvironmentVariables();        });        return host.ConfigureServices((hostContext, services) =>        {                        services.AddHostedService<WebApp>();        });    }}public class WebApp: BackgroundService{    public void StartApp()    {        var builder = WebApplication.CreateSlimBuilder([]);        builder.Services.ConfigureHttpJsonOptions(options =>        {            options.SerializerOptions.TypeInfoResolverChain.Insert(0, AppJsonSerializerContext.Default);        });        var app = builder.Build();        var sampleTodos = new Todo[] {            new(1, "Walk the dog"),            new(2, "Do the dishes", DateOnly.FromDateTime(DateTime.Now)),            new(3, "Do the laundry", DateOnly.FromDateTime(DateTime.Now.AddDays(1))),            new(4, "Clean the bathroom"),            new(5, "Clean the car", DateOnly.FromDateTime(DateTime.Now.AddDays(2)))        };        var todosApi = app.MapGroup("/todos");        todosApi.MapGet("/", () => sampleTodos);        todosApi.MapGet("/{id}", (int id) =>            sampleTodos.FirstOrDefault(a => a.Id == id) is { } todo                ? Results.Ok(todo)                : Results.NotFound());        app.Run();    }    protected override async Task ExecuteAsync(CancellationToken stoppingToken)    {        StartApp();    }}public record Todo(int Id, string? Title, DateOnly? DueBy = null, bool IsComplete = false);[JsonSerializable(typeof(Todo[]))]internal partial class AppJsonSerializerContext : JsonSerializerContext{}

项目目录结构：

运行目录结构：

setup.bat 内容：

sc create MyService binPath= %~dp0AspNetCoreWindowsService.exesc failure MyService actions= restart/60000/restart/60000/""/60000 reset= 86400sc start MyServicesc config MyService start=auto