참고사이트

https://wikidocs.net/277    >> 자바

https://www.w3schools.com/mysql/mysql_delete.asp >>전체적인 것

http://www.tcpschool.com/xml/xml_dom_xmlHttpRequest >>전체 + XMLHttpRequest

https://victorydntmd.tistory.com/154 >>자바 서블릿참고한거인데 자바있음

https://aljjabaegi.tistory.com/520 >>ajax참고

https://velog.io/@tastestar/Content-type-json >>ajax content type

https://pathas.tistory.com/187 >>Action Tag 액션 태그 개요

https://pingfanzhilu.tistory.com/entry/JSP-%EA%B8%B0%EC%B4%88-25-%EC%95%A1%EC%85%98%ED%83%9C%EA%B7%B8-jspforward  >>forward param

 

https://itworldyo.tistory.com/188 >>세션 사용법

https://dololak.tistory.com/577>> 세션 유효시간

 

//서블렛에서 session만들기
https://m.blog.naver.com/PostView.naver?blogId=2zino&logNo=222031620074&categoryNo=16&proxyReferer= 

https://dololak.tistory.com/551<<// 세션종료

 

https://daesuni.github.io/jstl/ <<JSTL 참고
https://blog.naver.com/wonminst/90096004269 <<JSTL

//JSTL
https://atoz-develop.tistory.com/entry/JSP-JSTL-%EC%82%AC%EC%9A%A9-%EB%B0%A9%EB%B2%95-%EC%A3%BC%EC%9A%94-%ED%83%9C%EA%B7%B8-%EB%AC%B8%EB%B2%95-%EC%A0%95%EB%A6%AC