.NET Core（2.1）Web API控制器接受请求URL中的所有后续内容作为参数 [英] .NET Core (2.1) web API controller accepting all that follows within the request url as parameter

问题描述

我所拥有的是一个.NET Core 2.1 Web API控制器（在下面的TestController中），当接收到GET请求时，该控制器应该生成到其他URL的重定向。

What I have is a .NET Core 2.1 web API controller (in the following the TestController) that should generate redirects to other urls when receiving GET requests.

示例：

控制器的调用方式如下： http：//localhost/api/v1/Test/somedir/somesubdir/filename.extension

The controller is called like: http://localhost/api/v1/Test/somedir/somesubdir/filename.extension

，它应该返回重定向到< a href = https://example-domain.com/somedir/somesubdir/filename.extension rel = nofollow noreferrer> https://example-domain.com/somedir/somesubdir/filename.extension

and it should return a redirect to https://example-domain.com/somedir/somesubdir/filename.extension

此问题的示例控制器如下：

My example controller for this question looks like:

  [Authorize]
  [Route("api/v1/[controller]")]
  public class TestController : ControllerBase
  {
    [HttpGet("{path}")]
    public async Task<IActionResult> Get(string path)
    {
      //path e.g. is somedir/somesubdir/filename.extension
      string prefix = "https://example-domain.com/api/v1/Other/";
      //string path2 = HttpContext.Request.Path.Value.Replace("/api/v1/Test/", "/api/v1/Other/").Replace("%2F", "/");
      return Redirect(prefix + path);
    }
  }

我没有安排工作的路线。如果我使用Swagger调用该方法，则会被调用（用斜杠替换为％2F），但至少会被调用。
如果我通过邮递员.NET Core调用控制器，则仅返回404 Not Found。

I don't get the routing to work. If I call the method with Swagger it get's called (with the slashes replaced by %2F) but at least it gets called. If I call the controller via postman .NET Core just returns 404 Not Found.

我不一定需要HttpGet（ {path}）。我知道我可以像分配path2变量一样获得路径。

I do not necessarily need the HttpGet("{path}"). I know that I could get the path like I assigned the path2 variable.

任何提示都可以正确实现路由？

Any hints how I could get the routing right?

另一个可能的解决方案：

Another possible solution:

正如John和Kirk Larkin在评论中指出的那样for是一条通俗易懂的路线，在路径参数中填充 somedir / somesubdir / filename.extension，与之后的路径无关。

As pointed out by John and Kirk Larkin in the comments what I was looking for is a catch-all route filling the path argument with "somedir/somesubdir/filename.extension" independent how long the path afterwards is.

在

[HttpGet（ {* path}）]

[HttpGet("{*path}")]

推荐答案

您不需要考虑 api / v1 / Test ，因为您的代码注释表明，它已经被过滤掉了。控制器级别的[Route]属性。

You don't need to take "api/v1/Test" into account as your code comments suggest, it is already filtered out by the [Route] attribute on the Controller level.

对于随后的其余路径，您可以使用 {* path} ：

For the rest of the path that follows you can use {*path}:

[HttpGet("{*path}")]
public async Task<IActionResult> Get(string path)
{
    const string prefix = "https://example-domain.com/api/v1/Other/";
    return Redirect(prefix + path);
}

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