Java tutorial
/** * DNet eBusiness Suite * Copyright: 2013 Nan21 Electronics SRL. All rights reserved. * Use is subject to license terms. */ package net.nan21.dnet.core.web.security; import java.io.IOException; import javax.servlet.ServletException; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.springframework.security.core.AuthenticationException; import org.springframework.security.web.AuthenticationEntryPoint; public class DefaultNotAuthenticatedEntryPoint implements AuthenticationEntryPoint { @Override public void commence(HttpServletRequest request, HttpServletResponse response, AuthenticationException authException) throws IOException, ServletException { response.setStatus(HttpServletResponse.SC_FORBIDDEN); response.getWriter().write("Not authenticated"); response.flushBuffer(); } }