发送端,执行Message对象的setDelayTimeLevel();
比如需要延迟10s
message.setDelayTimeLevel(3);
默认延迟等级1:1s 2:5s 3:10s 4:30s 5:1m 6:2m 7:3m 8:4m 9:5m 10:6m 11:7m 12:8m 13:9m 14:10m 15:20m 16:30m 17:1h 18:2h