Are the parameters sent from one jsp to another jsp page are saved?

I try to send parameter from menu page to My home page which include both the menu page and the page开发者_运维问答 which comes through a parameter from one href form menu page . MainPage inside folder in my web app, and all other jsps and the menue inside AdminPages folder inside the web-inf folder , so when i call AnyPage.jsp from the menu i make Add new user

and in the MainPage

THE problem is that for the fisrt time I press on add new user link it works properly and call it's sevlet but when i click again over it , an exception happen The requested resource (/IUG_OSQS_system_web/Admin/Admin/MainPage.jsp) is not available. i think it save admin parameter and make something of concatanation ! or other thing which i don't know !! Can any body help?Here is a picture which could help to get what i mean?

You need to replace links like

<a href="Admin/MainPage.jsp">

inside the MainPage.jsp and all of its include pages by

<a href="MainPage.jsp">

This problem is in no way related to passing parameters. It's just a misconception of how relative URL's work.