给JAVA中加入重试机制(Spring Retry)

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上代码

需要引入

		<dependency>
            <groupId>org.springframework.retry</groupId>
            <artifactId>spring-retry</artifactId>
            <version>1.2.5.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.aspectj</groupId>
            <artifactId>aspectjweaver</artifactId>
            <version>1.8.7</version>
        </dependency>

import java.time.LocalTime;

/**
 * @ProjectName: user
 * @Package: com.user.service.Impl
 * @ClassName: PayServiceImpl
 * @Author: Pond fish
 * @Description: 重试机制
 * @Date: 2020/6/8 13:17
 * @Version: 1.0
 * 需要在启动类中加入@EnableRetry注解
 */


@Service
public class PayServiceImpl {
    private Logger logger = LoggerFactory.getLogger(getClass());
    @Autowired
    private ComService cService;
    @Autowired
    private Constants constants;
    @Autowired
    private RestTemplateHeaderInitUtils headerInitUtils;

    /**
     * 1.@Retryable和@Recover返回值类型必须一致
     * 2.处理的异常要统一
     * 3.IllegalArgumentException(重试)
     */
    @Retryable(value = Exception.class, maxAttempts = 3, backoff = @Backoff(delay = 2000, multiplier = 1.5))
    public AutoPlaceOrderDTO retryLH(JSONObject jsonb) throws Exception {
        logger.info("*****①调用其他平台*****");
        //调用其他平台
        String result = cService.openTransferString(jsonb, OperationPlatformCode.saveHYTOrder.getVal(),
                constants.orderHYTAcceptUrl(), headerInitUtils.operationPlatformInit(), HttpMethod.POST.name());
        logger.info("*****②返回结果*****：   " + result);
        AutoPlaceOrderDTO autoDTO = JSONObject.parseObject(result, AutoPlaceOrderDTO.class);
        String code = autoDTO.getCode();
        int code2 = Integer.parseInt(code);
        if (code2 == 1028) {
            throw new IllegalArgumentException("*****④未连接到平台*****");
        }
        logger.info("*****③重试结束*****");
        return autoDTO;
    }

    @Recover
    public String recover(Exception e) {
        logger.warn("*****⑤连接失败*****" + LocalTime.now());
        return "连接失败";
    }
}