如何从Spring Boot Singleton收集Prometheus度量信息

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

import io.micrometer.core.instrument.MeterRegistry;
import io.micrometer.core.instrument.Counter;
import io.micrometer.core.instrument.Timer;

@Component
public class MetricsCollector {
    private final Counter requestCounter;
    private final Timer requestTimer;

    public MetricsCollector(MeterRegistry meterRegistry) {
        this.requestCounter = meterRegistry.counter("requests.total");
        this.requestTimer = meterRegistry.timer("requests.duration");
    }

    public void incrementRequestCount() {
        requestCounter.increment();
    }

    public void recordRequestDuration(long duration) {
        requestTimer.record(duration, TimeUnit.MILLISECONDS);
    }
}

@RestController
public class MyController {
    private final MetricsCollector metricsCollector;

    public MyController(MetricsCollector metricsCollector) {
        this.metricsCollector = metricsCollector;
    }

    @GetMapping("/api/myendpoint")
    public String handleRequest() {
        long startTime = System.currentTimeMillis();

        // 处理请求的逻辑

        long duration = System.currentTimeMillis() - startTime;
        metricsCollector.incrementRequestCount();
        metricsCollector.recordRequestDuration(duration);

        return "Success";
    }
}