nginx读取laravel的二级目录

nginx规则如下:
server {
listen 80;
listen 443 ssl http2;
server_name new.api.zentrust.cn;
root /var/www/new.api.zentrust.cn/prod/public;
index index.php index.html index.htm;
etag on;

gzip on;
gzip_vary on;
gzip_http_version 1.0;
gzip_min_length 1k;
gzip_buffers 4 16k;
gzip_comp_level 2;
gzip_disable msie6;
gzip_types text/plain text/css application/json application/javascript application/x-javascript text/javascript text/xml application/xml application/xml+rss;

client_max_body_size 110m;
client_body_buffer_size 1024k;

keepalive_timeout   60;

sendfile on;
sendfile_max_chunk 512k;
tcp_nopush on;
tcp_nodelay on;

ssl_session_cache   shared:SSL:10m;
ssl_session_timeout 30m;
ssl_certificate /etc/nginx/ssl/new.api.zentrust.cn/fullchain.cer;
ssl_certificate_key /etc/nginx/ssl/new.api.zentrust.cn/privkey.key;

location ^~ /test {
    alias   /var/www/new.api.zentrust.cn/test/public;

    if (!-e $request_filename) {
            rewrite ^ /test/index.php last;
    }

    location ~ \.php$ {
            if (!-f $request_filename) {
                    return 404;
            }

            fastcgi_pass        unix:/tmp/php-fpm-72.sock;
            fastcgi_index       index.php;
            fastcgi_param       SCRIPT_FILENAME $request_filename;
            include             fastcgi_params;
    }
}

location / {
    try_files $uri $uri/ /index.php?$query_string;
}

location ~ \.php$ {
    fastcgi_pass        unix:/tmp/php-fpm-72.sock;
    fastcgi_index       index.php;
    fastcgi_param       SCRIPT_FILENAME $document_root$fastcgi_script_name;
    include             fastcgi_params;
}

location = /robots.txt  { access_log off; log_not_found off; }
location = /favicon.ico { access_log off; log_not_found off; }

}