如何在Spring Boot中为普罗米修斯制定自己的指标

<dependency>
    <groupId>io.micrometer</groupId>
    <artifactId>micrometer-registry-prometheus</artifactId>
</dependency>

management:
  endpoints:
    web:
      exposure:
        include: prometheus

import io.micrometer.core.instrument.Counter;
import io.micrometer.core.instrument.MeterRegistry;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

@Component
public class MyMetrics {
    private final Counter myCounter;

    @Autowired
    public MyMetrics(MeterRegistry registry) {
        myCounter = registry.counter("my_counter");
    }

    public void incrementCounter() {
        myCounter.increment();
    }
}

http://localhost:8080/actuator/prometheus

# HELP my_counter Total number of events
# TYPE my_counter counter
my_counter 42.0