获取请求消息中所有头字段(王高祥)<hr>
accept : */*<br />user-agent : Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)<br />accept-encoding : gzip, br, zstd, deflate<br />host : 59.110.164.157:8080<br />via : 1.1 squid-proxy-5b5d847c96-rb8kp (squid/6.10)<br />x-forwarded-for : 10.1.101.116<br />cache-control : max-age=259200<br />connection : keep-alive<br />