Deploy a Servlet - Real's Java How-to

import javax.servlet.*;
import javax.servlet.http.*;
public class MyHelloWorld extends HttpServlet {
    public void init(ServletConfig config) throws ServletException {
        super.init(config);
    }
    public void destroy() {
    }
   protected void processRequest
     (HttpServletRequest request, HttpServletResponse response)
        throws ServletException, java.io.IOException {
    response.setContentType("text/html");
    java.io.PrintWriter out = response.getWriter();
    out.println("<html>");
    out.println("<head>");
    out.println("<title>Servlet</title>");  
    out.println("</head>");
    out.println("<body><h1>My Hello World</H1>");

    out.println("</body>");
    out.println("</html>");
    out.close();
    } 
   protected void doGet
      (HttpServletRequest request, HttpServletResponse response)
          throws ServletException, java.io.IOException {
    processRequest(request, response);
    } 
   protected void doPost
      (HttpServletRequest request, HttpServletResponse response)
          throws ServletException, java.io.IOException {
    processRequest(request, response);
    }
   public String getServletInfo() {
    return "Hello world servlet";
    }
}

Another way is to install the Servlet through Jaguar Manager
Note : this way you can have init parameters, give a nice name to the servlet, etc...

The best way to deploy a Servlet is to use a Web application defined in a WAR file. Habitually, you build the WAR file with your IDE (like Netbeans or Forté). Then you deploy the WAR file to Jaguar with the Jaguar Manager ( RMB on Web Application - Deploy). You have to stop/start Jaguar after the deployment because the Refresh seems to be broken.