telnet发送http请求

by 凯文

telnet某端口

>telnet 
>open 127.0.0.1 8080

or

telnet 127.0.0.1 8080

上述两个操作一致

telnet http请求

bogon:~ $ telnet 127.0.0.1 8080
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
GET /spring-tomcat/keepalive HTTP/1.1
Host: 127.0.0.1:8080

HTTP/1.1 200
Content-Type: text/plain;charset=UTF-8
Content-Length: 10
Date: Tue, 30 Jun 2020 06:54:08 GMT
  • 由于header与body间存在空行，所以Host下需要加上空行，response同理
  • tcp连接断开 telnet即退出
  • tcp断开的原因
    • 客户关闭
    • 到达服务端设置的超时时间，或 请求次数KeepAliveTimeout,MaxKeepAliveRequests,ConnectionTimeout
  • telnet中一行行的贴入下列内容，则会发送3个tcp报文，最后一个是换行
GET /spring-tomcat/keepalive HTTP/1.1
Host: 127.0.0.1:8080