Question

我需要做这样的事情：

<script type="text/javascript">
    token_url = "http://example.com/your_token_url";
</script>

我正在使用MVC的Beta版本，但我无法弄清楚如何获取动作的绝对URL。我想做这样的事情：

<%= Url.AbsoluteAction("Action","Controller")) %>

是否有帮助器或Page方法？

Answer 1

点击here了解更多信息，但基本上不需要扩展方法。它已经完成了，而不是以非常直观的方式。

Url.Action("Action", null, null, Request.Url.Scheme);

Answer 2

扩展UrlHelper

namespace System.Web.Mvc
{
    public static class HtmlExtensions
    {
        public static string AbsoluteAction(this UrlHelper url, string action, string controller)
        {
            Uri requestUrl = url.RequestContext.HttpContext.Request.Url;

            string absoluteAction = string.Format(
                "{0}://{1}{2}",
                requestUrl.Scheme,
                requestUrl.Authority,
                url.Action(action, controller));

            return absoluteAction;
        }
    }
}

然后像这样称呼它

<%= Url.AbsoluteAction("Dashboard", "Account")%>

编辑 - 重播注释

对于已接受的答案，最受欢迎的评论是This answer is the better one, this way Resharper can still validate that the Action and Controller exists.所以这里是一个如何获得相同行为的示例。

using JetBrains.Annotations

namespace System.Web.Mvc
{
    public static class HtmlExtensions
    {
        public static string AbsoluteAction(
            this UrlHelper url,
            [AspMvcAction]
            string action,
            [AspMvcController]
            string controller)
        {
            Uri requestUrl = url.RequestContext.HttpContext.Request.Url;

            string absoluteAction = string.Format(
                "{0}://{1}{2}",
                requestUrl.Scheme,
                requestUrl.Authority,
                url.Action(action, controller));

            return absoluteAction;
        }
    }
}

支持信息：

Providing Intellisense, Navigation and more for Custom Helpers in ASP.NET MVC

Answer 3

<%= Url.Action("About", "Home", null, Request.Url.Scheme) %>
<%= Url.RouteUrl("Default", new { Action = "About" }, Request.Url.Scheme) %>

Answer 4

使用 @Charlino的答案作为指导，我想出了这个。

ASP.NET MVC documentation for UrlHelper表示如果传入主机名和协议，Url.Action将返回完全限定的Url。我创建了这些帮助程序以强制提供主机名和协议。多重过载反映了Url.Action的重载：

using System.Web.Routing;

namespace System.Web.Mvc {
    public static class HtmlExtensions {

        public static string AbsoluteAction(this UrlHelper url, string actionName) {
            Uri requestUrl = url.RequestContext.HttpContext.Request.Url;
            return url.Action(actionName, null, (RouteValueDictionary)null, 
                              requestUrl.Scheme, null);
        }

        public static string AbsoluteAction(this UrlHelper url, string actionName, 
                                            object routeValues) {
            Uri requestUrl = url.RequestContext.HttpContext.Request.Url;
            return url.Action(actionName, null, new RouteValueDictionary(routeValues), 
                              requestUrl.Scheme, null);
        }

        public static string AbsoluteAction(this UrlHelper url, string actionName, 
                                            RouteValueDictionary routeValues) {
            Uri requestUrl = url.RequestContext.HttpContext.Request.Url;
            return url.Action(actionName, null, routeValues, requestUrl.Scheme, null);
        }

        public static string AbsoluteAction(this UrlHelper url, string actionName, 
                                            string controllerName) {
            Uri requestUrl = url.RequestContext.HttpContext.Request.Url;
            return url.Action(actionName, controllerName, (RouteValueDictionary)null, 
                              requestUrl.Scheme, null);
        }

        public static string AbsoluteAction(this UrlHelper url, string actionName, 
                                            string controllerName, 
                                            object routeValues) {
            Uri requestUrl = url.RequestContext.HttpContext.Request.Url;
            return url.Action(actionName, controllerName, 
                              new RouteValueDictionary(routeValues), requestUrl.Scheme, 
                              null);
        }

        public static string AbsoluteAction(this UrlHelper url, string actionName, 
                                            string controllerName, 
                                            RouteValueDictionary routeValues) {
            Uri requestUrl = url.RequestContext.HttpContext.Request.Url;
            return url.Action(actionName, controllerName, routeValues, requestUrl.Scheme, 
                              null);
        }

        public static string AbsoluteAction(this UrlHelper url, string actionName, 
                                            string controllerName, object routeValues, 
                                            string protocol) {
            Uri requestUrl = url.RequestContext.HttpContext.Request.Url;
            return url.Action(actionName, controllerName, 
                              new RouteValueDictionary(routeValues), protocol, null);
        }

    }
}

Answer 5

我不确定是否有内置方法可以执行此操作，但您可以使用自己的HtmlHelper方法。

如下所示

namespace System.Web.Mvc
{
    public static class HtmlExtensions
    {
        public static string AbsoluteAction(this HtmlHelper html, string actionUrl)
        {
            Uri requestUrl = html.ViewContext.HttpContext.Request.Url;

            string absoluteAction = string.Format("{0}://{1}{2}",
                                                  requestUrl.Scheme,
                                                  requestUrl.Authority,
                                                  actionUrl);

            return absoluteAction;
        }
    }
}

然后像这样称呼它

<%= Html.AbsoluteAction(Url.Action("Dashboard", "Account"))%> »

HTHS，查尔斯

Answer 6

完整的答案将是：

var url = Url.Action("ActionName", "ControllerName", new { id = "arg_value" }, Request.Url.Scheme);

这将产生绝对网址

Answer 7

结果相同但更干净（没有字符串连接/格式化）：

public static Uri GetBaseUrl(this UrlHelper url)
{
    Uri contextUri = new Uri(url.RequestContext.HttpContext.Request.Url, url.RequestContext.HttpContext.Request.RawUrl);
    UriBuilder realmUri = new UriBuilder(contextUri) { Path = url.RequestContext.HttpContext.Request.ApplicationPath, Query = null, Fragment = null };
    return realmUri.Uri;
}

public static string ActionAbsolute(this UrlHelper url, string actionName, string controllerName)
{
    return new Uri(GetBaseUrl(url), url.Action(actionName, controllerName)).AbsoluteUri;
}

Answer 8

也许这个（？）：

<%= 
  Request.Url.GetLeftPart(UriPartial.Authority) + 
  Url.Action("Action1", "Controller2", new {param1="bla", param2="blabla" })
%>

Answer 9

env：dotnet核心版本1.0.4

Url.Action("Join",null, null,Context.Request.IsHttps?"https":"http");

如何在ASP.NET MVC中找到动作的绝对URL？

9 个答案: