nginx获取自定义header参数

修改配置文件fastcgi.conf,加上以下内容

fastcgi_param HTTP_USERNAME  $http_username;

修改nginx.conf,日志输出格式，添加$http_username

log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
'$status $body_bytes_sent "$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for" "$http_username"';

重启nginx

输出结果

127.0.0.1 - - [11/Aug/2015:15:50:22 +0800] "GET /signin?ru=http://m.focus.cn/user/ HTTP/1.1" 200 4777 "-" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/43.0.2357.65 Safari/537.36" "-" "maso88"

fastcgi

fastcgi是快速通用网关接口的缩写，nginx的进程将请求通过unix domain socket(都位于同一物理服务器）或者一个IP Socket（FastCGI部署在其它物理服务器）传递给FastCGI进程，fastcgi处理完后返回给nginx进程