@WebFilter(filterName = "AFilter",urlPatterns = "/*")
public class AFilter implements Filter {
  public void destroy() {
  }

  public void doFilter(ServletRequest req, ServletResponse resp, FilterChain chain) throws ServletException, IOException {
    System.out.println("AFilter 开始执行");
    chain.doFilter(req, resp);
    System.out.println("AFilter 执行完成");
  }

  public void init(FilterConfig config) throws ServletException {

  }

}

@SpringBootApplication
@ServletComponentScan
public class BillAdminApplication {
  public static void main(String[] args) {
    SpringApplication.run(BillAdminApplication.class,args);
  }
}

@Bean
  public FilterRegistrationBean registrationBean1(){
    FilterRegistrationBean filterRegistrationBean=new FilterRegistrationBean();
    filterRegistrationBean.setFilter(new AFilter());
    filterRegistrationBean.addUrlPatterns("/*");
    filterRegistrationBean.setOrder(2);
    return filterRegistrationBean;
  }