Possible Duplicate:
what is the difference between getAttribute() and getParameter() in java
What is the difference between a parameter and attribute when using JSP.
Possible Duplicate:
what is the difference between getAttribute() and getParameter() in java
What is the difference between a parameter and attribute when using JSP.
Parameters are part of the original request (e.g. from the browser). Attributes are purely server-side, and are used to pass data when forwarding from, e.g. servlet to JSP.