自己写了一段 snippet,可以获取 EF Core 中的实体在控制器内的引用

[PendingOni]

    [Route("api/[controller]")]
    public class loopdisc : Controller
    {
        private readonly IActionDescriptorCollectionProvider _provider;

        public loopdisc(IActionDescriptorCollectionProvider provider)
        {
            _provider = provider;
        }

        [HttpPost("mainstart")]
        public Task<IActionResult> getresult()
        {
            var dataDic = typeof(BaseContext).GetProperties(BindingFlags.Public | BindingFlags.Instance);
            var names = new List<string>();
            names.AddRange(dataDic.Where(x => x.PropertyType.GenericTypeArguments.Any())
                .Select(x => x.PropertyType.GenericTypeArguments.First().Name));

            var ls = _provider.ActionDescriptors.Items.Select(e => e is ControllerActionDescriptor mau
                    ? (
                        mau.ControllerTypeInfo.DeclaredMethods
                            .First(x => x.Name.Equals(mau.ActionName)).GetMethodBody()
                            ?.LocalVariables.Select(jim =>
                                jim.LocalType.GenericTypeArguments.Any() &&
                                names.Contains(jim.LocalType.GenericTypeArguments[0].Name)
                                    ? jim.LocalType.GenericTypeArguments[0].Name
                                    : string.Empty
                            )
                        ,
                        $"{mau.ControllerName}/{mau.ActionName}".ToLowerInvariant())
                    : default)
                .ToList();

            var copy = ls.Where(x => x.Item1.Any(min => !string.IsNullOrEmpty(min)))
                .Select(x => new { sets = x.Item1.ToHashSet(), router = x.Item2 });

            return Task.FromResult<IActionResult>(Ok(copy));
        }
    }

gist 地址 -> https://gist.github.com/KomiSans/7cbcb6c3bf885a08002313e9ff1fee22