Nginx $request_uri有重复的查询参数

我发现Nginx的$request_uri复制了查询参数.

我希望实现的目标是将裸域的任何请求重定向到www域.这是一个示例配置.

    server {
        listen       8080;
        server_name  localhost;    
        location / {
            if ($http_host !~* "^www\.") {
                rewrite (.*) http://www.$http_host$request_uri permanent;
            }
        }
    }

我得到的结果是：

curl -I http://127.0.0.1:8080/pp/\?a\=b

HTTP/1.1 301 Moved Permanently
Server: Nginx/1.6.2
Date: Thu,22 Jan 2015 04:07:39 GMT
Content-Type: text/html
Content-Length: 184
Connection: keep-alive
Location: http://www.127.0.0.1:8080/pp/?a=b?a=b

查询参数在结果中重复;我在这里错过了什么吗？

最佳答案

您看到的查询参数的复制是Nginx的预期行为.要更改此设置,您需要添加尾随？重写如下：

   server {
        listen       8080;
        server_name  localhost;    
        location / {
            if ($http_host !~* "^www\.") {
                rewrite (.*) http://www.$http_host$request_uri? permanent;
            }
        }
    }

See Documentation Here.

If a replacement string includes the new request arguments,the
prevIoUs request arguments are appended after them. If this is
undesired,putting a question mark at the end of a replacement string
avoids having them appended,for example:

rewrite ^/users/(.*)$/show?user=$1? last;

但是,Aleksey Deryagin给出的配置对于您所需的重定向类型来说是更好,更有效的选项,因为无论是否需要,每个请求都将由原始配置中的if块进行评估.