Servlet to JSP forward leads to jsp page but does not execute java code (only html)

Question

I'm using a system which includes Jersey (1.18.1) for REST web services + custom servlets to treat client requests and call web services. I'm also using FORM method authentication.

The problem is that after web service has been called, the servlet forwards then to index.jsp. In that JSP the html/javascript code is well displayed but the java code is not executed. I have to refresh the page (F5) to get the java code to be executed 9but then loose the request/response informations). What could be the cause for this behaviour...?

Here is what my web.xml looks like:




    contextConfigLocation
    classpath:applicationContext.xml



    org.springframework.web.context.ContextLoaderListener



AdminModule
    

    JerseySpringServlet
    com.sun.jersey.spi.spring.container.servlet.SpringServlet
    
        com.sun.jersey.config.property.packages
        my.package.restapi
    
    
        com.sun.jersey.api.json.POJOMappingFeature
        true
    
    1



    MainController
    my.package.controller.MainController


    
    
    Logout
    Logout
    my.package.controller.Logout


    
    
    DefaultAction
    DefaultAction
    my.package.controller.DefaultAction


    
    
    CreateRole
    CreateRole
    my.package.controller.CreateRole



    JerseySpringServlet
    /restapi/*



    MainController
    /CMQAdmin


    Logout
    /Logout


    DefaultAction
    /DefaultAction


    CreateRole
    /CreateRole




    
        Admin security manager
        /index.jsp
        GET
        POST
        PUT
        DELETE
    
    
        role1
        role2
        role3
    
    
        CONFIDENTIAL
    



    
        Admin security manager
        /DefaultAction
        GET
        POST
        PUT
        DELETE
    
    
        role1
        role2
        role3
    
    
        CONFIDENTIAL
    



    
        Admin security manager
        /CMQAdmin
        GET
        POST
        PUT
        DELETE
    
    
        role1
        role2
        role3
    
    
        CONFIDENTIAL
    





    FORM
    
        /login.jsp
        /error.jsp
    




    role1


    role2


    role3



    30



    CMQAdmin

The code in the jsp. No java code is executed at all when the page dispays after the servlet forwards :

<%@ page import="org.json.*"%>
<%@ page import="java.io.*,java.util.*" %>



    Cookies: ${cookie.username.value} 



Admin













 

    
        
            
            
        
    


    Admin Module
    
        
            
                <%
                    if(request.isUserInRole("2") || request.isUserInRole("1")) {
                %>
                    a
                    b
                    c
                    d
                    e
                <%
                    }
                    else if(request.isUserInRole("3")) {
                %>
                    b
                    a
                    c
                    d
                    e
                <%
                    }
                %>


            
        
        
            <%
                if(request.isUserInRole("2")) {
            %>
                
                    
                        Get infos
                    
                    
                        Post info
                    
                    
                        put info
                    
                    
                        delete info
                    
                
            <%
                }
                else if(request.isUserInRole("3")) {
            %>
                
                    
                        get info
                    
                
            <%
                }
                else if(request.isUserInRole("1")) {
            %>
                    
                    ...
                    
            <%
                }
            %>
        
        
    
    
    Click on any button on the
        left to load content in here.

The servlet that makes the call to a webservice (call is ok) and then forwards back to index.jsp:

public class CreateRole extends HttpServlet {
    private static final long serialVersionUID = 1L;

    @Autowired
    private RoleFacade roleFacade;

    /**
     * Logger...
     */
    private static final Logger logger = Logger.getLogger(CreateRole.class.getName());

    /**
     * Processes requests for both HTTP GET and POST
     * methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        logger.info("CreateRole::processRequest");

        String createRole = "AdminModule/SaveOrUpdateRole";

        logger.info("CreateRole::rolename+description: " + rolename + " + " + description);

        // get user roles from web service
        String baseURL = https://localhost/AdminModule/restapi;

        Form form = new Form();
        form.add("rolename", rolename); 
        form.add("description", description);

        JerseyClient client = new JerseyClient(form, baseURL+createRole);
        ClientResponse clientResponse = client.post_Form(form);

        if(clientResponse.getStatus() == 200 || clientResponse.getStatus() == 201) {
            logger.info("ROLE [" + clientResponse.getEntity(String.class) + "] has been successfully created");

            // do whatever with response
            client.close();

            request.setAttribute("", request.getParameter("action"));

            this.getServletContext().getRequestDispatcher("/index.jsp").forward(request, response);
            return;
        }
        else {
            request.setAttribute("error", true);
            request.setAttribute("wrErrorMessage", "Could not create new role");
            RequestDispatcher r = this.getServletContext().getRequestDispatcher("/index.jsp");
            r.forward(request, response);
            return;
        }
    }

    /**
     * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
     */
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
     */
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        processRequest(request, response);
    }

}

Jaydee · Accepted Answer

I think you may be missing a closing } for the javascript bit just above /script

script type="text/javascript">

. . .

        some html code DDD
<%
    }
%>


/script>

BTW Scriptlets are deprecated. I tend to use the Java Standard Tag Library (JSTL) and beans.

http://www.tutorialspoint.com/jsp/jsp_standard_tag_library.htm

Servlet to JSP forward leads to jsp page but does not execute java code (only html)

Answers (1)

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