c# - 从服务器端的路由值解析 url

Question

我正在尝试创建一个 ValidationAttribute （用于仅在服务器端有效的远程验证），并且在 IsValid 方法中，我需要从 url 路由值解析 url。这是我的初始设置：

public class ServerSideRemoteAttribute : ValidationAttribute {

    public string Controller { get; set; }
    public string Action { get; set; }
    public object RouteValues { get; set; }

    public ServerSideRemoteAttribute(string controller, string action) {

        this.Controller = controller;
        this.Action = action;
    }

    public ServerSideRemoteAttribute(string controller, string action, object routeValues) {

        this.Controller = controller;
        this.Action = action;
        this.RouteValues = routeValues;
    }

    protected override ValidationResult IsValid(object value, ValidationContext validationContext) {

        //Here I need to resolve the url in order to make a call to that controller action and get the JSON result back

        return base.IsValid(value, validationContext);
    }
}

有什么想法吗？

Answer 1

var httpContext = new HttpContextWrapper(HttpContext.Current);
var urlHelper = new UrlHelper(new RequestContext(httpContext, new RouteData()));
var url = urlHelper.Action(Action, Controller, RouteValues);