如何在ASP中找到一个动作的绝对url。净MVC吗?

我需要这样做:

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

我正在使用MVC的Beta版本，但我不知道如何获得一个动作的绝对url。我想这样做:

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

是否有用于此的helper或Page方法?

96438 次浏览
小开

我不确定是否有一个内置的方法来做到这一点，但你可以滚动你自己的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;
}
}
}

然后这样叫它

<%= Html.AbsoluteAction(Url.Action("Dashboard", "Account"))%> »
< p > HTHs, 查尔斯。< / p >
小开

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;
}
}
}

然后这样叫它

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

编辑-重新锐化注释

对于已接受的答案，被点赞最多的评论是This answer is the better one, this way Resharper can still validate that the Action and Controller exists.，所以这里有一个例子，你可以得到相同的行为。

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:

小开

相同的结果，但稍微干净一点(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;
}
小开
< p >使用 @Charlino的回答作为指导，我想出了这个。< / p >

ASP。UrlHelper的NET MVC文档显示了这个Url。如果传入主机名和协议，Action将返回一个完全限定的Url。我创建这些帮助程序是为了强制提供主机名和协议。多重重载反映Url重载。行动:

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);
}


}
}
小开

也许这个(?):

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

单击在这里以获取更多信息，但基本上不需要扩展方法。它已经存在了，只是不是以非常直观的方式。

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

Env: dotnet核心版本1.0.4

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

带参数的完整答案是:

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

那会产生一个绝对url


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