Spring Boot使用AOP防止重复提交的方法示例

@Aspect
@Component
public class RepeatSubmitAspect {

  private static final Logger LOGGER = LoggerFactory.getLogger(RepeatSubmitAspect.class);

  @Autowired
  private RedisLock redisLock;

  @Pointcut("@annotation(com.gitee.taven.aop.NoRepeatSubmit)")
  public void pointCut() {}

  @Around("pointCut()")
  public Object before(ProceedingJoinPoint pjp) {
    try {
      HttpServletRequest request = RequestUtils.getRequest();
      Assert.notNull(request, "request can not null");

      // 此处可以用token或者JSessionId
      String token = request.getHeader("Authorization");
      String path = request.getServletPath();
      String key = getKey(token, path);
      String clientId = getClientId();

      boolean isSuccess = redisLock.tryLock(key, clientId, 10);
      LOGGER.info("tryLock key = [{}], clientId = [{}]", key, clientId);

      if (isSuccess) {
        LOGGER.info("tryLock success, key = [{}], clientId = [{}]", key, clientId);
        // 获取锁成功, 执行进程
        Object result = pjp.proceed();
        // 解锁
        redisLock.releaseLock(key, clientId);
        LOGGER.info("releaseLock success, key = [{}], clientId = [{}]", key, clientId);
        return result;

      } else {
        // 获取锁失败，认为是重复提交的请求
        LOGGER.info("tryLock fail, key = [{}]", key);
        return new ApiResult(200, "重复请求，请稍后再试", null);
      }

    } catch (Throwable throwable) {
      throwable.printStackTrace();
    }

    return new ApiResult(500, "系统异常", null);
  }

  private String getKey(String token, String path) {
    return token + path;
  }

  private String getClientId() {
    return UUID.randomUUID().toString();
  }

}

@Component
public class RunTest implements ApplicationRunner {

  private static final Logger LOGGER = LoggerFactory.getLogger(RunTest.class);

  @Autowired
  private RestTemplate restTemplate;

  @Override
  public void run(ApplicationArguments args) throws Exception {
    System.out.println("执行多线程测试");
    String url="http://localhost:8000/submit";
    CountDownLatch countDownLatch = new CountDownLatch(1);
    ExecutorService executorService = Executors.newFixedThreadPool(10);

    for(int i=0; i<10; i++){
      String userId = "userId" + i;
      HttpEntity request = buildRequest(userId);
      executorService.submit(() -> {
        try {
          countDownLatch.await();
          System.out.println("Thread:"+Thread.currentThread().getName()+", time:"+System.currentTimeMillis());
          ResponseEntity<String> response = restTemplate.postForEntity(url, request, String.class);
          System.out.println("Thread:"+Thread.currentThread().getName() + "," + response.getBody());

        } catch (InterruptedException e) {
          e.printStackTrace();
        }
      });
    }

    countDownLatch.countDown();
  }

  private HttpEntity buildRequest(String userId) {
    HttpHeaders headers = new HttpHeaders();
    headers.setContentType(MediaType.APPLICATION_JSON);
    headers.set("Authorization", "yourToken");
    Map<String, Object> body = new HashMap<>();
    body.put("userId", userId);
    return new HttpEntity<>(body, headers);
  }

}