How to convert Object to String

s_gr

I am usiing httpsession tracking and i am trying to convert the session object to a string to allow it to be used further on in the program. I have tried everything but cannot get it to work:

The session information is passed correctly as it displays the name of the person who has logged in using the code below.

Hello <% = session.getAttribute("Name");%>

I want to converrt the ("Name") to a String so i can use it later on in the program. Can anyone please help me as i have tried everything and have had not luck. I am using jsp by the way.

deadl0ck

Have you tried casting it to a String ?

String name = (String)session.getAttribute("Name");

MrPinK

deadl0ck wrote:

Have you tried casting it to a String ?

String name = (String)session.getAttribute("Name");

Think that needs more parentheses to get the precedence right

(String)(session.getAttribute("Name"))

lynchie

MrPinK wrote:

Think that needs more parentheses to get the precedence right

(String)(session.getAttribute("Name"))

The extra parentheses around session.get... are not needed

s_gr

Thanks for all the replies, but i am still having problems. I type casting as suggested:

String x = (String)session.getAttribute("Name");
System.out.println("Hello " + x);

Hello null - output


The system.out keeps returning a null value, even though the session.getAttribute("Name); is working on the same page as it is passing the "Name" from the first page. Does anyone else know where i might be going wrong.

rsynnott

Hmm, weird. Have a look at what's happening in the debugger.

s_gr

I checked the debugger window but there does not seem to be an problems. I cannot understand why it continually returns a null value. Does anyone have any suggestions that i can try or alternative syntax.

Thanks for all replies so far.

tempest

s_gr wrote:

I want to converrt the ("Name") to a String so i can use it later on in the program.

Where in the program do you want to use it?

later in the same jsp, in a different jsp, in a servlet?

Where is the println code? In the same jsp???

deadl0ck

What happens if you have :

System.out.println("Hello " + session.getAttribute("Name"));

s_gr

tempest wrote:

Where in the program do you want to use it?
later in the same jsp, in a different jsp, in a servlet?

Where is the println code? In the same jsp???

Tempest,

Basically i have a login in page which passes the session value to the next jsp page when login is sucessful. It then displays the login name using the

Welcome <%= session.getAttribute("userName")%>

In the same jsp i want to be able to use the ("userName") value to search a database. The database side is fine if i supply the userName directly, but when i try to automatically use the session userName,it keeps returning a null value. This is really strange.

s_gr

deadl0ck wrote:

What happens if you have :

System.out.println("Hello " + session.getAttribute("Name"));

This also returned a null value. In theory there should be no reason why i cant do this as the session value is already on the same jsp page and i just want to use it to search a database. Each session will have a different userName as different people login in so hence different search of database required.

Thanks

dan_pretty_boy

Hi,

remember that getAttribute is case sensitive, r u sure its the right name.

Best way is to print out all the attribues that are in the session

regards
Danny

Enygma

Is it definetely not null? Are you sure it's being set?

Ya do what Danny said, use the session.getAttributeNames() method to print out all the attributes?

s_gr

dan_pretty_boy wrote:

Hi,

remember that getAttribute is case sensitive, r u sure its the right name.

Best way is to print out all the attribues that are in the session

regards
Danny

Got it to work finally by changing variable names and printing out all the attributes as suggested. Worked fine.

Thanks you all your help & everyone's suggestions