如何在 api mvc 项目 net core 3.1 中向 controller 添加操作

Question

我正在尝试从 Microsoft 示例开始制作 IdentityServer4。

该示例包含一个 Api 项目和一个 mcv 客户端，用于验证和调用 api。

Api项目Startup.cs：

public class Startup
{
    public void ConfigureServices(IServiceCollection services)
    {
        services.AddControllers();

        services.AddAuthentication("Bearer")
            .AddJwtBearer("Bearer", options =>
            {
                options.Authority = "http://localhost:5000";
                options.RequireHttpsMetadata = false;

                options.Audience = "api1";
            });
    }

    public void Configure(IApplicationBuilder app)
    {
        app.UseRouting();

        app.UseAuthentication();
        app.UseAuthorization();

        app.UseEndpoints(endpoints =>
        {
            endpoints.MapControllers();
        });
    }
}

Api IdentityController.cs：

namespace Api.Controllers
{
    [Route("identity")]
    [Authorize]
    public class IdentityController : ControllerBase
    {
        public IActionResult Get()
        {
            return new JsonResult(from c in User.Claims select new { c.Type, c.Value });
        }
    }
}

MvcClient 中的这段代码正确调用了 IdentityController 的操作：

public async Task<IActionResult> CallApi()
{
        var accessToken = await HttpContext.GetTokenAsync("access_token");

        var client = new HttpClient();
        client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", accessToken);
        var content = await client.GetStringAsync("http://localhost:5001/identity");

        ViewBag.Json = JArray.Parse(content).ToString();
        return View("json");
}

我向 IdentityController 添加了一个名为 Test 的操作：

namespace Api.Controllers
{
    [Route("identity")]
    [Authorize]
    public class IdentityController : ControllerBase
    {
        public IActionResult Get()
        {
            return new JsonResult(from c in User.Claims select new { c.Type, c.Value });
        }

        public IActionResult Test()
        {
            return new JsonResult(from c in User.Claims select new { c.Type, c.Value });
        }
    }
}

但是这段代码在 McvClient 中找不到 404：

public async Task<IActionResult> CallTestApi()
{
        var accessToken = await HttpContext.GetTokenAsync("access_token");

        var client = new HttpClient();
        client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", accessToken);
        var content = await client.GetStringAsync("http://localhost:5001/identity/Test");

        ViewBag.Json = JArray.Parse(content).ToString();
        return View("json");
}

Answer 1

此示例使用HTTP 动词路由模板。 如您所见， [Route("identity")]位于 controller 级别， Get属于 controller 的默认获取。 但是对于Test操作，您需要添加[HttpGet("test")] 。 在此处阅读有关路由的更多信息。 代码将是这样的：

namespace Api.Controllers
{
    [Route("identity")]
    [Authorize]
    public class IdentityController : ControllerBase
    {
        public IActionResult Get()
        {
            return new JsonResult(from c in User.Claims select new { c.Type, c.Value });
        }

        [HttpGet("test")]
        public IActionResult Test()
        {
            return new JsonResult(from c in User.Claims select new { c.Type, c.Value });
        }
    }
}