Asp.Net MVC在过滤器中使用模型绑定

 1     public class DemoFiltersAttribute : AuthorizeAttribute
 2     {
 3         public override void OnAuthorization(AuthorizationContext filterContext)
 4         {
 5             var person = new Person();
 6             //过滤器中使用模型绑定
 7             BindModel<Person>(filterContext, person);
 8             filterContext.Result = new JsonResult() { Data = person, JsonRequestBehavior = JsonRequestBehavior.AllowGet };
 9             //base.OnAuthorization(filterContext);
10         }
11 
12         /// <summary>
13         /// 模型绑定
14         /// </summary>
15         /// <typeparam name="TModel"></typeparam>
16         /// <param name="model">模型(绑定成功后将会给此赋值)</param>
17         /// <param name="prefix">获取或设置在呈现表示绑定到操作参数或模型属性的标记时要使用的前缀</param>
18         public void BindModel<TModel>(AuthorizationContext filterContext, TModel model, string prefix = "") where TModel : class
19         {
20             IModelBinder binder = ModelBinders.Binders.GetBinder(typeof(TModel));
21             ModelBindingContext bindingContext = new ModelBindingContext()
22             {
23                 ModelMetadata = ModelMetadataProviders.Current.GetMetadataForType(() => model, typeof(TModel)),
24                 ModelName = prefix,
25                 ValueProvider = filterContext.Controller.ValueProvider
26             };
27             binder.BindModel(filterContext.Controller.ControllerContext, bindingContext);
28         }
29     }

1     public class Person
2     {
3         public int Id { set; get; }
4         public string Name { set; get; }
5     }

1     [DemoFilters]
2     public class HomeController : Controller
3     {
4         // GET: Home
5         public ActionResult Index(Person p)
6         {
7             return Content("123");
8         }
9     }