Spring FilterChain + Security：用户是否记录日志请求

Question

I have a Spring web-mvc REST-service with several initializers.

WebAppInitializer.java

@Order(1)
public class MyFiltersInitializer implements WebApplicationInitializer {

    @Override
    public void onStartup(ServletContext servletContext) {
        FilterRegistration.Dynamic registration = servletContext.addFilter("myRequestFilter", DelegatingFilterProxy.class);
        // register other filters and DispatcherServlet
    }
}

SecurityWebAppInitializer.java

@Order(2)
public class MySecurityWebApplicationInitializer extends AbstractSecurityWebApplicationInitializer {

    @Override
    protected Set<SessionTrackingMode> getSessionTrackingModes() {
        return EnumSet.of(SessionTrackingMode.COOKIE, SessionTrackingMode.URL);
    }
}

As you can see, SecurityFilterChain is being added after all custom request filters. What I need to do is to log every request, and include User to log, if request is authorized

Something like MyRequestFilter.java :

@Slf4j
public class RequestFilter extends OncePerRequestFilter {

    @Override
    protected void doFilterInternal(final HttpServletRequest request,
                                    final HttpServletResponse response,
                                    final FilterChain filterChain) throws ServletException, IOException {
           MyUser user = SecurityContextHolder.getContext().getAuthentication().getPrincipal(); //no auth yet
           log.debug("request {} start, user {}", request, user); 
           filterChain.doFilter(request, response); //may return 401 or 403, what also need to be logged
           log.debug("request {} end with response {}", request, response);
   }

There is an idea to add an LogBodyHolder , which keeps log body until SecurityChain is passed completely, and then call log.debug . But is there any pretty way to solve this problem?

Answer 1

你可以创建一个扩展类的Spring bean AbstractRequestLoggingFilter这是由Spring提供，然后覆盖beforeRequest()和afterRequest()方法，你想添加你的日志。