Spring SpringBoot小的细节总结记录 spring mvc 采用SPI技术，注入Spring的Servlet类，具体是实现了javax.servlet.Ser

定义自定义注解 1@Retention(RetentionPolicy.RUNTIME) 2@Target(ElementType.PARAMETER) 3public @interface Logined { 4} 注解处理器 1@Component 2@Slf4j 3public class LoginedArgumentResolver implements HandlerMethodArgumentResolver { 4 @Override 5 public boolean supportsParameter(MethodParameter parameter) { 6 return …