Hands-On Spring Security 5 for Reactive Applications

Custom filters

As explained earlier, Spring Security works on servlet filters. There are number of built-in servlet filters that do almost all the necessary functionalities. If needed, Spring Security does provide a mechanism to write your own custom filter and can be plugged in at the right point in the filter chain execution. Create your own filter by extending org.springframework.web.filter.GenericFilterBean as shown in the following code snippet:

public class NewLogicFilter extends GenericFilterBean {    @Override    public void doFilter(ServletRequest request, ServletResponse response,            FilterChain chain) throws IOException, ServletException {        // Custom logic        chain.doFilter(request, response);    }}

Once you create your own filter, plug it into ...