tencent cloud

<dependency>
    <groupId>io.prometheus</groupId>
    <artifactId>simpleclient</artifactId>
    <version>0.9.0</version>
</dependency>
<dependency>
    <groupId>io.micrometer</groupId>
    <artifactId>micrometer-registry-prometheus</artifactId>
    <version>1.1.7</version>
</dependency>


public class Application {
    // It can be used in custom monitoring as a global variable
    public static final PrometheusMeterRegistry registry = new PrometheusMeterRegistry(PrometheusConfig.DEFAULT);
    static {
        // Add a global Prometheus label. We recommend you add the corresponding application name to it
        registry.config().commonTags("application", "java-demo");
    }

    public static void main(String[] args) throws Exception {
        // Add JVM monitoring
        new ClassLoaderMetrics().bindTo(registry);
        new JvmMemoryMetrics().bindTo(registry);
        new JvmGcMetrics().bindTo(registry);
        new ProcessorMetrics().bindTo(registry);
        new JvmThreadMetrics().bindTo(registry);
        new UptimeMetrics().bindTo(registry);
        new FileDescriptorMetrics().bindTo(registry);
        System.gc(); // Test GC
        try {
            // Expose the Prometheus HTTP service. If it already exists, you can use the existing HTTP server
            HttpServer server = HttpServer.create(new InetSocketAddress(8080), 0);
            server.createContext("/metrics", httpExchange -> {
                String response = registry.scrape();
                httpExchange.sendResponseHeaders(200, response.getBytes().length);
                try (OutputStream os = httpExchange.getResponseBody()) {
                    os.write(response.getBytes());
                }
            });

            new Thread(server::start).start();
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
    }
}