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Deploy a Servlet(this howto is deprecated)Tag(s): DEPRECATED


Here the simplest way to execute a servlet through Jaguar.
Note : this way you can't control the servlet through Jaguar manager.

1. Take the following Servlet : 

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";
    }

}
2. Compile as MyHelloWorld.class
3. Copy the class into %jaguar%\html\classes
4. in IE : http://localhost:8080/servlet/MyHelloWorld

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...

  1. same servlet
  2. compile
  3. Same copy
  4. In Jaguar Manager, Servlets -> new Servlet , give MyServletHelloWorld as the name, the fully qualified name is MyHelloWorld
  5. In Jaguar Manager, Jaguar -> Installed Servlets -> Install Servlet -> Intall an Existing Servlet , select MyServletHelloWorld
  6. On Installed Servlets, refresh with RMB (right mouse button)
  7. start MyServletHelloWorld servlet with the MRB (mouse right button)
  8. in IE : http://localhost:8080/servlet/MyServletHelloWorld

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.

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