ASP.NET 核心 Web API：將應用設置值注入 Z594C103F2C6E04C3C3DAZAB059F031 路由

Question

我有一個 ASP.NET 核心 Web API 項目，我希望我的控制器的路線是：

api/vX.Y/custom_name

例如，我會在 AppSettings 中有第二個值

"ApiVersion":"vX.Y"

但我不確定如何將此值“注入”到 controller 路由中。

Answer 1

如果您想從 appsettings.json 啟用默認appsettings.json版本，您可以嘗試遵循：

1. appsettings.json

    { "ApiVersion": "2.1" }

2. ConfigureApiVersioningOptions

    public class ConfigureApiVersioningOptions: IConfigureOptions<ApiVersioningOptions> { private readonly IServiceProvider _serviceProvider; public ConfigureApiVersioningOptions(IServiceProvider serviceProvider) { _serviceProvider = serviceProvider; } public void Configure(ApiVersioningOptions options) { var apiVersion = _serviceProvider.GetRequiredService<IConfiguration>().GetSection("ApiVersion").Value; options.DefaultApiVersion = ApiVersion.Parse(apiVersion); } }

3. Startup.cs

    public class Startup { public Startup(IConfiguration configuration) { Configuration = configuration; } public IConfiguration Configuration { get; } // This method gets called by the runtime. Use this method to add services to the container. public void ConfigureServices(IServiceCollection services) { services.AddMvc(options => { options.EnableEndpointRouting = false; }); services.AddApiVersioning(); services.AddSingleton<IConfigureOptions<ApiVersioningOptions>, ConfigureApiVersioningOptions>(); } // This method gets called by the runtime. Use this method to configure the HTTP request pipeline. public void Configure(IApplicationBuilder app, IHostingEnvironment env) { if (env.IsDevelopment()) { app.UseDeveloperExceptionPage(); } app.UseMvc(); } }

4. ValuesController

    [ApiController] [Route("api/v{version:apiVersion}/Values")] public class ValuesController: Controller { // GET api/values [HttpGet] public IEnumerable<string> Get() { return new string[] { "value113", "value223" }; } }