encodeURL problem

[sasikumar palakkizhi]

Hi,
I was trying to experiment with the use of encodeURL( String). I did the experiment with getSession() and encodeURL(). The code is shown and the problem is mentioned below the code.

 if(session==null){
    out.println("<p> session not existing</p>");
    
    session=request.getSession();
    
    //out.println("<a href='" +response.encodeURL("SelectBeer.do")+"'>  yahoo! </a>");
    
    }else
    out.println("<p> welcome back</p>");
    
     }
 
   

It is found that if I use getSession() (As shown above. encodeURL is commented) , the execution goes to "else" part whenever I refresh the page. When I comment getSession() and include the encodeURL("." ) line, execution never goes to the else part..Could anybody point out the mistake.. I am using Tomcat 5.5 as my server.

thanks in advance

regards
sasikumar

[Christophe Verré]

This problem is not related to encodeUrl, but with the way you are using getSession. Calling getSession() will return an existing session, or create a new one if it doesn't already exist. If you comment this out, no session will be created, so you'll always end up in the if{}. If you leave it, you'll end up in the else{} after the session has been created.

[sasikumar palakkizhi]

Hi Satou kurinosuke,

Thanks for the reply, I tried again.

I realised that encodeURL and getSession() works together to get the session information if the Cookies are disabled...

regards

sasikumar

[Ben Souther]

I can't see where you are declaring your the variable "session".
I'm assuming that it's in the service (doPost or doGet) method.

With every hit, you're testing the 'session' variable for nullness and then setting it's value it it's null. With this logic, it will always be null.

Call request.getSession before testing for nullness.