带有HTTPGET端点的ASP.NET 404

Question

我已经使用C＃/ ASP.Net作了第一个终点，现在正尝试使用get请求来过滤“ yearId”。代码如下：

    [HttpGet("{yearId}")]
    public async Task<ActionResult<Student>> GetStudent(long yearId)
    {
        var student = await _context.Student.FindAsync(yearId);

        if (student == null)
        {
            return NotFound();
        }

        return student;
    }

我可以确认此帖子的输入正确无误，因此可以看到ID。如果我只尝试“ Id”，它将按唯一ID进行过滤。我的Startup.cs端点是默认端点，因此我怀疑这是问题所在，但不知道要去哪里：

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

感谢您的帮助。我有以下路线：[Route（“ api / students”）]

谢谢

编辑：当我尝试/ api / students / getyear / 4时，我现在在邮递员中得到一个空白响应，在chrome中得到404。 Startup.cs是：

                endpoints.MapControllerRoute (
                    name: "MapByAction",
                    pattern: "api/{controller}/{action}/{yearId?}",
                    defaults: new { controller = "students", action = `"getyear" });`

我得到的是：

        [HttpGet("{yearId}")]
        private async Task<ActionResult<Student>> GetYear(long yearId)
        {
            var student = await _context.Student.FindAsync(yearId);

            if (student == null)
            {
                return NotFound();
            }

            return student;
        }

Answer 1

您可以在UseEndpointRouteResolverMiddleware上配置API的路由。样品：

//This is the endpoint route resolver middleware
app.UseEndpointRouteResolverMiddleware(routes =>
{
    //The route mapping configuration is passed to the endpoint resolution middleware
    routes.MapControllers();
})

https://aregcode.com/blog/2019/dotnetcore-understanding-aspnet-endpoint-routing/