nginx 剔除 $args 变量中任意指定参数之万金油

#剔除$args中的redirectUrl 参数
server {
    listen   80;
    server_name  www.mynginx.rewrite;

    location /search {
        set $args_tmp &${args};
        if ( $args_tmp ~* ^(.*)(&redirectUrl=[w%@.]*)(.*)$){
            set $args $1$3;
        }
#除去参数开头可能带有&字符的情况
        if ( $args ~* ^&(.*)$){
            set $args $1;
        }
        rewrite ^/search http://www.text.com/text?$args? break;
}
}

server {
    listen   80;
    server_name  www.mynginx.rewrite;

    location /search {
        set $args_tmp &${args};
        if ( $args_tmp ~* ^(.*)(&redirectUrl=w*)(.*)$){                                                                                    
set$arg_path $arg_redirectUrl; #获取参数变量redirectUrl的值
            set $args $1$3;
            rewrite ^/search  /text/$arg_path;
        }
    }

    location ~* /text {
        if ( $args ~* ^&(.*)$){#除去参数开头可能带有&字符的情况
            set $args $1;
        }
        rewrite ^/text/(.*) http://www.text.com/text/$1?$args? break;
}
}