Reputation: 762

jsp unable to put session attribute into string

i'm having an issue with a session attriblute in a jsp page, i would like to pass it into a string so that i can use it to query a database eg,

String group=session.getAttribute("group");

i know it has been correctly populated because if i put the below in a page it displays the correct value

<%=
session.getAttribute("group")
 %>

the error i am getting is

Type mismatch: cannot convert from Object to String

is there a different way to put a session variable into a String? or am i doing it completely wrong. any assistance much appreciated.

Upvotes: 7

Answers (3)

Reputation: 115

you just put like this:

String group=""+session.getAttribute("group");

append as string, simple.

Upvotes: -2

Reputation: 334

session.getAttribute(String name) will return an Object.

To be safe and prevent any accidental ClassCastException, I would use String.valueOf(Object obj), like this:

String group = String.valueOf(session.getAttribute("group"));

Sources:

Upvotes: 1

Reputation: 121998

You have to cast it to String

String group=(String)session.getAttribute("group");

where session.getAttribute("group"); returns Object.

Upvotes: 13