在日志格式后面加上 $request_body 配置信息
log_format main ‘$remote_addr - $remote_user [$time_local] "$request" ‘
‘$status $body_bytes_sent "$http_referer" ‘
‘"$http_user_agent" "$http_x_forwarded_for" $request_body‘;
access_log logs/access.log main;
原文：https://www.cnblogs.com/wanjn/p/10031468.html