dsp:getvalueof

It creates a variable in a given scope or in page scope if none specified.

With  you can create a constant, param or a constant value.

Defining constant value:

The equivalent in JSP:
String age = “25″;

Defining a parameter in request scope:

The equivalent in JSP:
String age = request.getParameter(“customerAge”);

Defining a bean:

The equivalent in JSP:
Employee employee = new Employee();