nginx accesslog 打印自定义header

比如我在请求的header中添加了一个path-match-type，那我现在nginx的accesslog 中打印出来，应该如何配置呢？

root@nginx-59f5d66df6-jw5k8:/# cat /etc/nginx/nginx.conf user  nginx;
worker_processes  auto;error_log  /var/log/nginx/error.log notice;
pid        /var/run/nginx.pid;events {worker_connections  1024;
}http {include       /etc/nginx/mime.types;default_type  application/octet-stream;log_format  main  '$remote_addr - $remote_user [$time_local] "$request" ''$status $body_bytes_sent "$http_referer" ''"$http_user_agent" "$http_x_forwarded_for"';access_log  /var/log/nginx/access.log  main;sendfile        on;#tcp_nopush     on;keepalive_timeout  65;#gzip  on;include /etc/nginx/conf.d/*.conf;
}==>
user  nginx;
worker_processes  auto;error_log  /var/log/nginx/error.log notice;
pid        /var/run/nginx.pid;events {worker_connections  1024;
}http {include       /etc/nginx/mime.types;default_type  application/octet-stream;log_format  main  '$remote_addr - $remote_user [$time_local] "$request" ''$status $body_bytes_sent "$http_referer" ''"$http_user_agent" "$http_x_forwarded_for"''"$http_path_match_type"' ;access_log  /var/log/nginx/access.log  main;sendfile        on;#tcp_nopush     on;keepalive_timeout  65;#gzip  on;include /etc/nginx/conf.d/*.conf;
}

注意两点

• 自定义header时候，header的name不能包含下划线(_)
• 在nginx access log日志格式配置的时候，需要将header的name中的中划线改成下划线并添加http_开头，比如本文中path-match-type ==>$http_path_match_type