package cs320.servlet; import java.io.IOException; import java.io.PrintWriter; import javax.servlet.ServletConfig; import javax.servlet.ServletContext; import javax.servlet.ServletException; import javax.servlet.annotation.WebServlet; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; @WebServlet( urlPatterns="/SharedRequestCounter", loadOnStartup=1 ) public class SharedRequestCounter extends HttpServlet { private static final long serialVersionUID = 1L; public void init( ServletConfig config ) throws ServletException { super.init( config ); getServletContext().setAttribute( "counter", new Integer( 0 ) ); } protected void doGet( HttpServletRequest request, HttpServletResponse response ) throws ServletException, IOException { ServletContext context = getServletContext(); Integer counter = (Integer) context.getAttribute( "counter" ); counter = counter + 1; context.setAttribute( "counter", counter ); PrintWriter out = response.getWriter(); out.println( "" ); out.println( "Request Counter" ); out.println( "" ); out.println( "Request counter is incremented." ); out.println( "" ); } }