获取相应头

通过 ngx.resp.get_headers()open in new window 方法获取响应头，它返回一个包含当前所有响应表头的 Lua 表。

worker_processes  1;        #nginx worker 数量
error_log logs/error.log;   #指定错误日志文件路径
events {
    worker_connections 1024;
}

http {
    server {
        #监听端口，若80端口已被占用，则需要修改
        listen 80;
        server_name 127.0.0.1;
        location = /resp.headers {
            default_type text/html;
            
            content_by_lua_block {
                -- 获取响应头table
                local headers_table = ngx.resp.get_headers()
                for k, v in pairs(headers_table) do
                    ngx.say(k.. ":" ..v)
                end
            }
        }
    }
}

测试：

curl 'http://127.0.0.1/resp.headers' \
  -H 'Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9' \
  -H 'Accept-Language: zh-CN' \
  -H 'Cache-Control: no-cache' \
  -H 'Pragma: no-cache' \
  -H 'Proxy-Connection: keep-alive' \
  -H 'Sec-GPC: 1' \
  -H 'Upgrade-Insecure-Requests: 1' \
  -H 'User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.5005.61 Safari/537.36'
#
# connection:keep-alive

# 获取相应头

获取相应头