How to pass session value to java class

Question

I have a servlet which have these values and I want to pass these values to the java class in session attribute. How can I access these session attributes because I am not using JSF or Struts. This is simple Java Web application.

userID=map.get("UserID");

log.debug("The UserID in case of CCM authtication are : "+userID);

session.setAttribute("UserID", userID);
String refSys="";
refSys = map.get("refSystem");
log.debug("The refSystem in case of CCM authtication is: "+refSys);
session.setAttribute("refSystem", refSys);

This is how I am trying to get in the Java class and I am getting null in the Java class.

HttpSession session = null;

session.getAttribute("UserID");

You are setting session value to null so it throws the NullPointerException — Amy, Oct 10 '14 at 06:40
Here is the method in which i am trying to connect using public Map socialMediaUserInfo(String tokenID). — user3548196, Oct 10 '14 at 07:11
replace first line of code with HttpSession session = request.getSession(true); — Amy, Oct 10 '14 at 07:13
Is it possible to get HttpSession session = request.getSession(true); in non servlet class. — user3548196, Oct 10 '14 at 07:24
Please Refer This: http://stackoverflow.com/questions/5866728/get-httpsessionrequest-from-simple-java-class-not-servlet-class — Amy, Oct 10 '14 at 07:26

score -1 · Answer 1 · answered Oct 10 '14 at 06:43

-1

Well, your session only can be null, because you don't initialize it. You have to do something like that first to initialize the HttpSession-object:

HttpSession s = request.getSession();

After that you can access your userId via the HttpSession.

answered Oct 10 '14 at 06:43

Christian

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Subham Tripathi · Answer 2 · 2014-10-10T06:54:33.300

-1

you are intially setting your session to null.

change ur code to this :

HttpSession session = null;
HttpSession session = request.getSession();
String userId =session.getAttribute("UserID");

hope it works !!

edited Oct 10 '14 at 06:54

answered Oct 10 '14 at 06:43

Subham Tripathi

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How to pass session value to java class

2 Answers2