在java中使用Prometheus收集的时间序列的自定义时间戳

import io.prometheus.client.Counter;
import io.prometheus.client.exporter.HTTPServer;
import io.prometheus.client.hotspot.DefaultExports;

import java.io.IOException;

public class PrometheusExample {
    private static final Counter customCounter = Counter.build()
            .name("custom_counter")
            .help("Custom counter metric")
            .register();

    public static void main(String[] args) throws IOException {
        // 注册默认的JVM指标
        DefaultExports.initialize();

        // 启动Prometheus的HTTP服务器，默认监听在9090端口
        HTTPServer server = new HTTPServer(9090);

        // 设置自定义时间戳
        long customTimestamp = System.currentTimeMillis() / 1000; // 自定义时间戳，单位为秒
        customCounter.timeStamp(customTimestamp);

        // 增加指标值
        customCounter.inc();

        // 等待程序终止
        System.in.read();

        // 停止HTTP服务器
        server.stop();
    }
}