prometheus暴露java业务数据，并进行监控告警

maven：

        
            io.micrometer
            micrometer-registry-prometheus
            runtime
        

代码：要实现MeterBinder的bindTo方法。然后在里面注册指标。在注册指标的同时，要设定好指标的tag。

@Component
public class PrometheusMetrics implements MeterBinder {

    private AtomicDouble atomicDouble = new AtomicDouble();
    private String tags = null;
    static final Duration DEFAULT_REFRESH_INTERVAL = Duration.ofSeconds(20);
    private AtomicInteger atomicInteger = new AtomicInteger(1);


    private final ScheduledExecutorService scheduler = Executors.newSingleThreadScheduledExecutor();

    @Autowired
    NodeService nodeService;

    @Override
    public void bindTo(MeterRegistry meterRegistr