使用MVC4，我能够创建并注册一个全局操作过滤器，它将在操作执行之前检查模型状态，并在任何损坏发生之前返回序列化的
public override void OnActionExecuting(System.Web.Http.Controllers.HttpActionContext actionContext)
{
if (!actionContext.ModelState.IsValid)
{
actionContext.Request.CreateErrorResponse(HttpStatusCode.BadRequest, actionContext.ModelState);
}
}
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public override void OnActionExecuting(ActionExecutingContext nActionExecutingContext)
{
if (!nActionExecutingContext.Controller.ViewData.ModelState.IsValid)
{
nActionExecutingContext.Result = // Where is Request.CreateErrorResponse ?
}
}
null
null
必须
using System.Net.Http;
而不是
using System.Web.Http;
那么这就起作用了:
using System.Net;
using System.Net.Http;
using System.Web.Http.Controllers;
using System.Web.Http.Filters;
public class ValidateModelStateAttribute : ActionFilterAttribute
{
public override void OnActionExecuting(HttpActionContext actionContext)
{
if (!actionContext.ModelState.IsValid)
{
actionContext.Response = actionContext.ControllerContext.Request.CreateErrorResponse(HttpStatusCode.BadRequest, actionContext.ModelState);
}
}
}
