session\index.html .......\loginservlet.java .......\logoutservlet.java .......\visitservlet.java .......\WEB-INF\classes\mypack\loginservlet.class .......\.......\.......\......\logoutservlet.class .......\.......\.......\......\visitservlet.class .......\.......\web.xml .......\.......\classes\mypack .......\.......\classes .......\WEB-INF session