<!-- 重試機(jī)制 -->
<dependency>
  <groupId>org.springframework.retry</groupId>
  <artifactId>spring-retry</artifactId>
  <version>1.2.4.RELEASE</version>
</dependency>

<dependency>
  <groupId>org.aspectj</groupId>
  <artifactId>aspectjweaver</artifactId>
  <version>1.9.4</version>
</dependency>

@EnableRetry
@Configuration
public class RetryConfiguration {

}

@Service
public class RetryService {

 private Logger logger = LoggerFactory.getLogger(RetryService.class);

 @Retryable(value = Exception.class, maxAttempts = 3, backoff = @Backoff(delay = 2000L, multiplier = 2))
 public void devide(double a, double b){
   logger.info("開始進(jìn)行除法運(yùn)算");
   if (b == 0) {
     throw new RuntimeException();
   }
   logger.info("{} / {} = {}", a, b, a / b);
 }

 @Recover
 public void recover() {
   logger.error("被除數(shù)不能為0");
 }

}

@RunWith(SpringRunner.class)
@SpringBootTest
public class BootdemoApplicationTests {

  @Autowired
  private RetryService retryService;

  private Logger logger = LoggerFactory.getLogger(BootdemoApplication.class);

  @Test
  public void retryTest() {
    //int count = retryService.retry(-1);
    retryService.retry(-1);
    //logger.info("庫(kù)存為：" + count);
  }
}

public void execute(double a, double b) throws DevideException {
    devide(a, b);
  }

  @Retryable(value = DevideException.class, maxAttempts = 3, backoff = @Backoff(delay = 2000L, multiplier = 2))
  public void devide(double a, double b) throws DevideException {
    logger.info("開始進(jìn)行除法運(yùn)算");
    if (b == 0) {
      throw new DevideException("被除數(shù)不能為0");
    }
    logger.info("{} / {} = {}", a, b, a / b);
  }