getRequestDispatcher dispatching jsp but not html

Question

I am running google app engine and using JAVAEE.

I have a two filters but only one is configured with restrictions.

WEB.XML

<?xml version="1.0" encoding="utf-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
         version="3.1">
    <filter>
        <filter-name>connexionFilter</filter-name>
        <filter-class>AHSFilters.connexionFilter</filter-class>
    </filter>
    <filter>
        <filter-name>restrictFilter</filter-name>
        <filter-class>AHSFilters.restrictFilter</filter-class>
    </filter>
    <filter-mapping>
        <filter-name>connexionFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
    <filter-mapping>
        <filter-name>restrictFilter</filter-name>
        <url-pattern>/client</url-pattern>
        <url-pattern>/admin</url-pattern>
    </filter-mapping>
</web-app>

I first login so I can go trough the first filter.
I change my url to localhost:8080/client

my connexion filter is as so:

    package AHSFilters;

    import java.io.IOException;

    import javax.servlet.Filter;
    import javax.servlet.FilterChain;
    import javax.servlet.FilterConfig;
    import javax.servlet.ServletException;
    import javax.servlet.ServletRequest;
    import javax.servlet.ServletResponse;
    import javax.servlet.http.HttpServletRequest;
    import javax.servlet.http.HttpServletResponse;
    import javax.servlet.http.HttpSession;

    public class connexionFilter implements Filter {

    @Override
    public void init(FilterConfig filterConfig) throws ServletException {
        // TODO Auto-generated method stub

    }

    @Override
    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
            throws IOException, ServletException {
        HttpServletRequest req = (HttpServletRequest) request;
        HttpServletResponse resp = (HttpServletResponse) response;
        HttpSession session = req.getSession();

        if(session.getAttribute("sessionUser") != null)
            chain.doFilter(req, resp);
        if (req.getHeader("X-Requested-With") != null)
            chain.doFilter(req, resp);
        else
            req.getServletContext().getRequestDispatcher("/").forward(request, response);
        // TODO Auto-generated method stub

    }

    @Override
    public void destroy() {
        // TODO Auto-generated method stub

    }

    }

my servlet is as so:

package AHSServlets;

import java.io.IOException;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

@WebServlet(
        name = "ClientServ",
        urlPatterns = {"/client"}
    )
public class ClientServ extends HttpServlet{
    public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
    {
        response.getWriter().flush();
        this.getServletContext().getRequestDispatcher("/restrict/client/test.jsp").forward(request, response);;
    }
}

when my file is setted to test.jsp I go to the correct page, but when I rename it to test.html and of course change the path in getRequestDispatcher I get redirected to my login page (/ route).

So I have to files /restrict/client/test.jsp i get the correct response and /restrict/client/test.html I go back to the signin page.

I've tried putting a simple hello in test.html also tried with valid html page with the same result. Is there any settings I'm missing in order to allow html?

Where could it come from? Any help is greatly appreciated.

please add the code of your `AHSFilters.connexionFilter` – Roshana Pitigala Nov 18 '18 at 11:48 — Roshana Pitigala, Nov 18 '18 at 11:48
@RoshanaPitigala Done. Many thanks in advance – JSmith Nov 18 '18 at 19:43 — JSmith, Nov 18 '18 at 19:43

score 2 · Accepted Answer · answered Nov 19 '18 at 05:58

I think in order to do so you need little configuration. In web.xml write a configuration code

<jsp-config>
    <jsp-property-group>
        <url-pattern>*.html</url-pattern>
    </jsp-property-group>
</jsp-config>

To understand better you can check

Can you render a file without a .jsp extension as a JSP?

Running .jsp as .html file

getRequestDispatcher dispatching jsp but not html

1 Answers1