标签:etc esc any and ted onclick author tail tle
原文:ASP.NET MVC和ASP.NET Core MVC中获取当前URL/Controller/Action
ASP.NET MVC
一、获取URL(ASP.NET通用):
【1】获取完整url(协议名+域名+虚拟目录名+文件名+参数)
string url=Request.Url.ToString();
【2】获取虚拟目录名+页面名+参数:
string url=Request.RawUrl;(或 string url=Request.Url.PathAndQuery;)
【3】获取虚拟目录名+页面名:
string url=HttpContext.Current.Request.Url.AbsolutePath;(或 string url= HttpContext.Current.Request.Path;)
【4】获取域名:
string url=HttpContext.Current.Request.Url.Host;
【5】获取参数:
string url= HttpContext.Current.Request.Url.Query;
【6】获取端口:
Request.Url.Port
二、获取当前Controller/Action:
RouteData.Route.GetRouteData(this.HttpContext).Values["controller"] RouteData.Route.GetRouteData(this.HttpContext).Values["action"] 或 RouteData.Values["controller"] RouteData.Values["action"]
在视图中
@ViewContext.RouteData.Route.GetRouteData(this.Context).Values["controller"] @ViewContext.RouteData.Route.GetRouteData(this.Context).Values["action"] 或 @ViewContext.RouteData.Values["controller"] @ViewContext.RouteData.Values["action"]
很显然上面只能获取当前View的,如果是嵌套的View上面获得的最终的子View的,如果要获取父View的,如下
ControllerContext.ParentActionViewContext.RouteData.Values["controller"] ControllerContext.ParentActionViewContext.RouteData.Values["action"] 在视图中 @ViewContext.ParentActionViewContext.RouteData.Values["controller"] @CViewContext.ParentActionViewContext.RouteData.Values["action"]
参考文献:
asp.net MVC中获取当前URL/Controller/Action
ASP.NET Core MVC
一、获取URL:
定义一个静态类HttpRequestExtensions,写一个HttpRequest的扩展方法GetAbsoluteUri,需要引入 Microsoft.AspNetCore.Http.Abstractions包:
using Microsoft.AspNetCore.Http; using System.Text; namespace AspNetCoreUrl { public static class HttpRequestExtensions { public static string GetAbsoluteUri(this HttpRequest request) { return new StringBuilder() .Append(request.Scheme) .Append("://") .Append(request.Host) .Append(request.PathBase) .Append(request.Path) .Append(request.QueryString) .ToString(); } } }
其中关于HttpRequest.Path和HttpRequest.PathBase有什么不同,可以查看:
What‘s the difference between HttpRequest.Path and HttpRequest.PathBase in ASP.NET Core?
然后我们就可以在使用HttpRequest时,调用该扩展方法来获取当前URL,例如下面我们在ASP.NET Core MVC的Controller中获取了当前URL:
public IActionResult Index() { string url = HttpContext.Request.GetAbsoluteUri(); this.ViewData["url"] = url; return View(); }
结果如下所示:
参考文献:
How to get current url in view in asp.net core 1.0
二、获取当前Controller/Action
在Controller中:
ControllerContext.ActionDescriptor.ControllerName
ControllerContext.ActionDescriptor.ActionName
在视图中:
@ViewContext.RouteData.Values["Controller"] @ViewContext.RouteData.Values["Action"]
在Filter拦截器中:
我们这里就以IAuthorizationFilter拦截器举例获取当前Controller/Action,其它Filter拦截器(IActionFilter、IResourceFilter、IExceptionFilter等)以此类推:
using Microsoft.AspNetCore.Mvc.Filters; using System; namespace AspNetCoreFilterContext.Filters { public class AuthorizationFilterAttribute : Attribute, IAuthorizationFilter { public void OnAuthorization(AuthorizationFilterContext context) { string controllerName = context.RouteData.Values["Controller"].ToString();//通过ActionContext类的RouteData属性获取Controller的名称:Home string actionName = context.RouteData.Values["Action"].ToString();//通过ActionContext类的RouteData属性获取Action的名称:Index string fullActionName = context.ActionDescriptor.DisplayName;//通过ActionContext类的ActionDescriptor属性,也可以获取Action的名称 //不过这样获取到的是Action的完全限定名:"AspNetCoreFilterContext.Controllers.HomeController.Index (AspNetCoreFilterContext)",可以看到其中还包含Controller的类名、命名空间和程序集名称 } } }
在HomeController上注册我们定义的IAuthorizationFilter拦截器AuthorizationFilterAttribute即可:
using Microsoft.AspNetCore.Mvc; using AspNetCoreFilterContext.Filters; namespace AspNetCoreFilterContext.Controllers { [AuthorizationFilter] public class HomeController : Controller { public IActionResult Index() { string controllerName = ControllerContext.ActionDescriptor.ControllerName; string actionName = ControllerContext.ActionDescriptor.ActionName; return View(); } } }
下载ASP.NET Core MVC中Filter拦截器获取当前Controller/Action的示例代码
ASP.NET MVC和ASP.NET Core MVC中获取当前URL/Controller/Action
标签:etc esc any and ted onclick author tail tle
原文地址:https://www.cnblogs.com/lonelyxmas/p/12928352.html