如何在 Nginx 中重写当前 URL?

How to get current rewrited URL in Nginx?

这是我的 nginx 配置文件:

http {
  index index.html;

  server {
    server_name www.domain1.com;
    access_log logs/domain1.access.log main;

    root /var/www/domain1.com/htdocs;

   rewrite ^(/upload/banner/\d+/).+\.(\d+m?.(jpg|png))$    last; 
   # How to get current rewrited URL now? With echo module?
....
....
  }

你可以看到我在里面重写了
现在如何重写当前 URL?使用 echo 模块?
你能给我解释一下吗?

最新的 URL 将包含在 $uri 变量中。

来自core module documentation

$uri current URI in request, normalized The value of $uri may change during request processing, e.g. when doing >internal redirects, or when using index files.