public interface Function<T> {
    T func();
}

public interface Retry<T> {
    Logger log = LoggerFactory.getLogger(Retry.class);


    /**
     * 默认重试方法
     *
     * @param retry
     * @return
     */
    default T retry(Function<T> retry) {
        int seconds = 30;
        int retryTimes = 3; // 重试次数
        for (int i = 1; i <= retryTimes; i++) {
            try {
                return retry.func();
            } catch (Exception e) {
                int sleepSeconds = seconds * i;
                log.error("异常[次数:" + i + "/" + retryTimes + "],休眠" + sleepSeconds + "秒:", e);
                CommonUtils.sleep(sleepSeconds);
                if (i == retryTimes) {
                    throw new RuntimeException("已重试" + i + "次,仍异常,抛出异常", e);
                }
            }
        }
        throw new RuntimeException("Retry未知异常");
    }

}

public class Demo implements Retry<DemoResp> {
    public void demo() {
	  // 这里会重试,成功后返回对应泛型的类变量
     DemoResp resp =  retry(() -> 您要重试的方法());   
    }
}