blocks|key|5560016|text|这就是所谓的网址重写，ASP.NET核心已经为此提供了special+middleware+(在Microsoft.AspNetCore.Rewrite包中)|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|5560017|检查文档，也许你可以“按原样”使用它。|5560018|如果没有-您可以使用check+source+code并编写您自己的代码。|5560019|entityMap|0|LINK|mutability|MUTABLE|url|https://docs.microsoft.com/en-us/aspnet/core/fundamentals/url-rewriting|1|https://github.com/aspnet/AspNetCore/tree/master/src/Middleware/Rewrite/src^0|1C|S|R|I|0|0|0|A|H|1|0^^$0|@$1|2|3|4|5|6|7|T|8|@$9|U|A|V|B|C]]|D|@$9|W|A|X|1|Y]]|E|$]]|$1|F|3|G|5|6|7|Z|8|@]|D|@]|E|$]]|$1|H|3|I|5|6|7|10|8|@]|D|@$9|11|A|12|1|13]]|E|$]]|$1|J|3|-4|5|6|7|14|8|@]|D|@]|E|$]]]|K|$L|$5|M|N|O|E|$P|Q]]|R|$5|M|N|O|E|$P|S]]]]

That's called URL Rewriting and ASP.NET Core already have <a href="https://docs.microsoft.com/en-us/aspnet/core/fundamentals/url-rewriting" rel="nofollow noreferrer">special middleware</a> for that (in package <code>Microsoft.AspNetCore.Rewrite</code>)

Check docs, may be you may use it "as is".

If not - you can <a href="https://github.com/aspnet/AspNetCore/tree/master/src/Middleware/Rewrite/src" rel="nofollow noreferrer">check source code</a> and write your own.

blocks|key|2218393|text|using+System;
using+System.Collections.Generic;
using+System.IO;
using+System.Linq;
using+System.Text;
using+System.Threading.Tasks;
using+Microsoft.AspNetCore.Antiforgery;
using+Microsoft.AspNetCore.Builder;
using+Microsoft.AspNetCore.Http;
using+Microsoft.AspNetCore.Identity;

namespace+Test.Middleware
{
++++public+class+TestMiddleware
++++{
++++++++private+readonly+RequestDelegate+_next;
++++++++public+TestMiddleware(RequestDelegate+next)
++++++++{
++++++++++++_next+=+next;
++++++++}
++++++++public+async+Task+InvokeAsync(HttpContext+httpContext,+AppDbContext+dataContext,+UserManager<User>+userManager,+IAntiforgery+antiforgery)
++++++++{

++++++++++++//+Redirect+to+login+if+user+is+not+authenticated.+This+instruction+is+neccessary+for+JS+async+calls,+otherwise+everycall+will+return+unauthorized+without+explaining+why
++++++++++++if+(!httpContext.User.Identity.IsAuthenticated+&&+httpContext.Request.Path.Value+!=+"/Account/Login")
++++++++++++{
++++++++++++++++httpContext.Response.Redirect("/Account/Login");
++++++++++++}

++++++++++++//+Move+forward+into+the+pipeline
++++++++++++await+_next(httpContext);
++++++++}
++++}
++++public+static+class+TestMiddlewareExtensions
++++{
++++++++public+static+IApplicationBuilder+UseTestMiddleware(this+IApplicationBuilder+builder)
++++++++{
++++++++++++return+builder.UseMiddleware<TestMiddleware>();
++++++++}
++++}
}|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|2218394|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Antiforgery;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Identity;

namespace Test.Middleware
{
 public class TestMiddleware
 {
 private readonly RequestDelegate _next;
 public TestMiddleware(RequestDelegate next)
 {
 _next = next;
 }
 public async Task InvokeAsync(HttpContext httpContext, AppDbContext dataContext, UserManager&lt;User&gt; userManager, IAntiforgery antiforgery)
 {

 // Redirect to login if user is not authenticated. This instruction is neccessary for JS async calls, otherwise everycall will return unauthorized without explaining why
 if (!httpContext.User.Identity.IsAuthenticated &amp;&amp; httpContext.Request.Path.Value != &quot;/Account/Login&quot;)
 {
 httpContext.Response.Redirect(&quot;/Account/Login&quot;);
 }

 // Move forward into the pipeline
 await _next(httpContext);
 }
 }
 public static class TestMiddlewareExtensions
 {
 public static IApplicationBuilder UseTestMiddleware(this IApplicationBuilder builder)
 {
 return builder.UseMiddleware&lt;TestMiddleware&gt;();
 }
 }
}
</code></pre>

What I'm trying to achieve is this:
When someone visits: <code>smartphone.webshop.nl/home/index</code>
I want to redirect this from middle ware to: <code>webshop.nl/smartphone/home/index</code>

I want to do this because I want to create a generic controller which get data from database based on <code>sub-domein</code>. So I need all the calls come to the same controller. 

This is my middleware now:

<pre><code>public Task Invoke(HttpContext context)
 {
 var subDomain = string.Empty;

 var host = context.Request.Host.Host;

 if (!string.IsNullOrWhiteSpace(host))
 {
 subDomain = host.Split('.')[0]; // Redirect to this subdomain
 }

 return this._next(context);
 }
</code></pre>

How can I redirect and how should my <code>controller/mvc</code> config look like? 

I'm pretty new to .net core so please be clear in your answers. Thank you.

Is it possible to redirect request from middleware in .net core

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我试图实现的是:当有人访问：smartphone.webshop.nl/home/index时，我希望将其从中间件重定向到：webshop.nl/smartphone/home/index我之所以这样做，是因为我想创建一个通用的控制器，它基于sub-domein从数据库中获取数据。所以我需要所有的调用都转到同一个控制器...

问是否可以从.net核心中的中间件重定向请求
EN

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问是否可以从.net核心中的中间件重定向请求EN