Head First Servlets and JSP, 2nd Edition

Making a JSP that displays how many times it’s been accessed

Pauline wants to use JSPs in her web apps—she’s really sick of writing HTML into a servlet’s PrintWriter println().

She decides to learn JSPs by making a simple dynamic page that prints the number of times the page has been requested. She understands that you can put regular old Java code in a JSP using a scriptlet—which just means Java code within a <% ... %> tag.

BasicCounter.jsp

Counter.java

package foo;

public class Counter {
   private static int count;
   public static synchronized int getCount() {
      count++;
      return count;
   }
}

Note

Plain old Java helper class.