How get input value in scriplet on jsp

Question

I have html code:

<input type="text" name="username" id="username">

How can I get username's value in my scriplet ?

 <% String username= request.getParameter("username");
 %>

But it doesn't work for me How can I solve this?

Answer 1

First make sure that request Object is only available when you send the request to the server or Submit the form .

• on Client side pass Some action inside form tag and mapped into XML file

   <form action="Submit.do"> 

• from server side like servlet/Strtus/JSP you can access request object using

   <% request.getParameter("inputid");%> 

• if you calling Same page after Submitting the data then on scriptlet check for request object if it null then don't perform any action else get the object