这是我最终要解决的千分尺缺陷。
同时，您需要将该值保存在映射中，以免垃圾回收。请注意，然后我们如何将量规指向地图，并通过lambda提取值以避免垃圾收集。
public class MonitorService {
private Map<String, Integer> gaugeCache = new HashMap<>();
private InfoCollectionService infoService;
public MonitorService(InfoCollectionService infoService) {
this.infoService = infoService
}
@Scheduled(fixedDelay = 5000)
public void currentLoggedInUserMonitor() {
infoService.getLoggedInUser("channel").forEach(channel -> {
gaugeCache.put(channel.getchannelName(), channel.getgetLoggedInUser());
Metrics.gauge("LoggedInUsers.Inchannel_" + channel.getchannelName(), gaugeCache, g -> g.get(channel.getchannelName()));
});
}
}
我还建议为各种渠道使用标签：
Metrics.gauge("loggedInUsers.inChannel", Tag.of("channel",channel.getchannelName()), gaugeCache, g -> g.get(channel.getchannelName()));
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