How to work with request, response and sessions in JSC

Question

Hi
I have two Servlets ServletA and ServletB. ServletA creates a session and add some attributes to this session. Then it forwards the request to ServletB where the attributes of this session are retrieved and used in response object.
Here is what I am doing in ServletB
- Get the session attrribute. This attribute is of type byte[]
byte[] mydata = (byte[]) request.getSession.getAttribute(data);
response.setContentLength(mydata.length);
OutputStream stream = response.getOutputStream();
stream.write(mydata,0,mydata.length);
stream.close();
My question is ...
How do I achieve this in Creator. ?
Thanks in advance
Srinivas

Answer 1

Hi
I have two Servlets ServletA and ServletB. ServletA
creates a session and add some attributes to this
s session. Then it forwards the request to ServletB
where the attributes of this session are retrieved
and used in response object.
Here is what I am doing in ServletB
- Get the session attrribute. This attribute is of
type byte[]
byte[] mydata = (byte[])
request.getSession.getAttribute(data);
response.setContentLength(mydata.length);
OutputStream stream = response.getOutputStream();
stream.write(mydata,0,mydata.length);
stream.close();
My question is ...
How do I achieve this in Creator. ?
Thanks in advance
SrinivasBy "this" do you mean "how do I access a session attribute that has been placed there by another servlet?"
The base class for all page beans has a bunch of convenience methods available. The simplest one to use for this purpose is getBean(), which searches through request scope, session scope, and application scope for a bean with the name you specify -- and, if its a managed bean, will create it for you as well. So, your code would look like this:
  String data = ...; // Name of the attribute you want
  byte[] mydata = (byte[]) getBean(data);There is an additional quirk related to what you're actually trying to do, though ... it looks like you are trying to write out binary content (perhaps an image loaded from the database or something). It is not possible to mix binary and text output in a single response.
Your best bet for this particular purpose, then, is to continue using ServletA and ServletB just as you have been. The applications created by Creator are standard servlet-based web applications, so you can use additional servlets and all the other goodies (although you'll have to declare them yourself in the web.xml file, as usual).
Craig