Java tutorial
/** * Guick Generate class: https://github.com/wdavilaneto/guick * Author: service-wdavilaneto@redhat.com * This source is free under The Apache Software License, Version 2.0 * license url http://www.apache.org/licenses/LICENSE-2.0.txt */ package com.lennonjesus.auth.security.handler; import org.springframework.security.core.AuthenticationException; import org.springframework.security.web.authentication.SimpleUrlAuthenticationFailureHandler; import org.springframework.stereotype.Component; import javax.servlet.ServletException; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import java.io.IOException; /** * Returns a 401 error code (Unauthorized) to the client, when Ajax authentication fails. */ @Component public class AjaxAuthenticationFailureHandler extends SimpleUrlAuthenticationFailureHandler { @Override public void onAuthenticationFailure(HttpServletRequest request, HttpServletResponse response, AuthenticationException exception) throws IOException, ServletException { logger.debug("Authentication Failed"); response.sendError(HttpServletResponse.SC_UNAUTHORIZED, "Authentication failed"); } }