csharp c＃在WebApi控制器中检查所有传入参数是否为null

Posted 2021-05-12

using System;
using System.Web.Http.Controllers;
using System.Web.Http.Filters;

namespace Payments.Productization.Process.FilterAttributes
{
    [AttributeUsage(AttributeTargets.Class)]
    public class CheckModelForNullAttribute : ActionFilterAttribute
    {
        public override void OnActionExecuting(HttpActionContext context)
        {
            if (context == null) throw new ArgumentNullException("Input Payload was malformed, invalid, or empty");

            foreach (var arg in context.ActionArguments)
            {
                if (arg.Value == null)
                {
                    throw new ArgumentException("Input Payload was malformed, invalid, or empty", arg.Key);
                }
            }

            base.OnActionExecuting(context);
        }
    }
}