Getting wrong value from session in javascript, How to use session in javascript?

Question

I am using following code to get session variable value in javascript embedded in a JSP:

var numberOfPages= '<%=session.getAttribute("numberOfPage")%>';

I am getting a wrong value (old value) when I hit the page for the first time but when I refresh the page, then I'm getting the correct value. Please help me.

Servlet code:

HttpSession session = request.getSession(false); 
if( session == null ) { 
   session = request.getSession(true); 
} 
String numberOfPage = Integer.toString(noOfPages);   
session.removeAttribute("numberOfPage"); 
session.setAttribute("numberOfPage", numberOfPage);

Jsp (javascript) Code:

if(<%=session.getAttribute("numberOfPage")%>!= null)
numberOfPages= '<%=session.getAttribute("numberOfPage")%>';

Java or JavaScript? Pick the language in which the issue resides (also, tag with JSP or whatever you're using). — user2864740
– user2864740, Commented Nov 15, 2013 at 6:55
first time wrong value means are you getting any values or not?Unless session is having any value,you can not recieve it getAttribute() — user2948112
– user2948112, Commented Nov 15, 2013 at 6:58
Not null. getting old value. At the time of set session i have removed that attribute and then set attribute but still it giving old value in jsp — Mahebub A Sayyed
– Mahebub A Sayyed, Commented Nov 15, 2013 at 7:00
Edit your question with the code. It's completely unreadable in a comment. — Chris Hayes
– Chris Hayes, Commented Nov 15, 2013 at 7:13

mauretto · Accepted Answer · 2013-11-15 09:26:02Z

1

session.getAttribute() returns an Object, try to cast it.

answered Nov 15, 2013 at 9:26

mauretto

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