[Java知识库]接口重复提交 解决接口冥幂问题

注解类

@Target(ElementType.METHOD)
@Retention(RetentionPolicy.RUNTIME)
public @interface RabbitNoRepeatSubmit {
}

实现类

@Aspect
@Component
@Slf4j
public class RabbitNoRepeatSubmitAspect {

    @Autowired
    RabbitRedisService rabbitRedisService;

    @Autowired
    RabbitAuthenticationComponent rabbitAuthenticationComponent;

    @Around("execution(* com.zsxt..*Controller.*(..)) && @annotation(nrs)")
    public Object arround(ProceedingJoinPoint pjp, RabbitNoRepeatSubmit nrs) {

        // validator 参数检查
        Object[] args = pjp.getArgs();
        for (Object arg : args) {
            if (arg instanceof BindingResult) {
                BindingResult result = (BindingResult) arg;
                if (result.hasErrors()) {
                    StringBuilder messageBuilder = new StringBuilder();
                    result.getAllErrors().forEach(err -> messageBuilder.append(err.getDefaultMessage() + ","));
                    return new RabbitResponse("400",
                            messageBuilder.toString().substring(0, messageBuilder.toString().length() - 1), null);
                }

            }
        }

        try {
            ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder
                    .getRequestAttributes();
            HttpServletRequest request = attributes.getRequest();

            String key = rabbitAuthenticationComponent.getUser().getUsername() + "-" + request.getServletPath();

            if (!rabbitRedisService.exists(key)) {
                rabbitRedisService.set(key, null, 3000L);
                Object o = pjp.proceed();
                return o;
            } else {
                log.error("重复提交");
                return new RabbitResponse(RabbitResponseEnums.REAPTE_SUBMIT);
            }

        } catch (Throwable e) {
            e.printStackTrace();
            log.error("验证重复提交时出现未知异常!");
            return new RabbitResponse(RabbitResponseEnums.SYS_ERROR);
        }

    }
}

调用

    @PostMapping("/create")
    @RabbitNoRepeatSubmit
    public Object create(@RequestBody @Valid SystemVo vo, BindingResult result) {

        boolean success = oauthSystemService.save(vo);

        if (!success) {
            return new RabbitResponse(RabbitResponseEnums.UPDATE_ERROR);
        }
        return new RabbitResponse(RabbitResponseEnums.SUCCESS);
    }