<dependency>    <groupId>io.prometheus</groupId>    <artifactId>simpleclient_spring_boot</artifactId>    <version>0.0.26</version></dependency>

package com.newcapec;import io.prometheus.client.spring.boot.EnablePrometheusEndpoint;import io.prometheus.client.spring.boot.EnableSpringBootMetricsCollector;import org.mybatis.spring.annotation.MapperScan;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import org.springframework.boot.SpringApplication;import org.springframework.boot.autoconfigure.SpringBootApplication;/** * @version V1.0 * @Title: 应用主类 * @ClassName: com.newcapec.SpringbootdemoApplication.java * @Description: * @Copyright 2016-2017  - Powered By 研发中心 * @author: fly * @date:2017-03-15 8:01 */@SpringBootApplication@EnablePrometheusEndpoint@EnableSpringBootMetricsCollector@MapperScan("com.newcapec.dao.mapper")public class SpringbootdemoApplication {    private final Logger logger = LoggerFactory.getLogger(this.getClass());    public static void main(String[] args) {        SpringApplication.run(SpringbootdemoApplication.class, args);       /* SpringApplicationBuilder builder = new SpringApplicationBuilder(SpringbootdemoApplication.class);        //修改Banner的模式为OFF        builder.bannerMode(Banner.Mode.OFF).run(args);*/    }}

在application.xml里设置属性：spring.metrics.servo.enabled=false，去掉重复的metrics，不然在prometheus的控制台的targets页签里，会一直显示此endpoint为down状态。

#应用可视化监控management.security.enabled=falsespring.metrics.servo.enabled=false

package com.newcapec.config.annotation;import java.lang.annotation.*;
@Target(ElementType.METHOD)@Retention(RetentionPolicy.RUNTIME)@Documentedpublic @interface PrometheusMetrics {    /**     *  默认为空,程序使用method signature作为Metric name     *  如果name有设置值,使用name作为Metric name     * @return     */    String name() default "";}

package com.newcapec.config.aspect;import com.newcapec.config.annotation.PrometheusMetrics;import groovy.util.logging.Slf4j;import io.prometheus.client.Counter;import io.prometheus.client.Histogram;import org.apache.commons.lang3.StringUtils;import org.aspectj.lang.ProceedingJoinPoint;import org.aspectj.lang.annotation.Around;import org.aspectj.lang.annotation.Aspect;import org.aspectj.lang.annotation.Pointcut;import org.aspectj.lang.reflect.MethodSignature;import org.springframework.stereotype.Component;import org.springframework.web.context.request.RequestContextHolder;import org.springframework.web.context.request.ServletRequestAttributes;import javax.servlet.http.HttpServletRequest;
@Aspect@Component@Slf4jpublic class PrometheusMetricsAspect {    private static final Counter requestTotal = Counter.build().name("couter_all").labelNames("api").help            ("total request couter of api").register();    private static final Counter requestError = Counter.build().name("couter_error").labelNames("api").help            ("response Error couter of api").register();    private static final Histogram histogram = Histogram.build().name("histogram_consuming").labelNames("api").help            ("response consuming of api").register();    // 自定义Prometheus注解的全路径    @Pointcut("@annotation(com.newcapec.config.annotation.PrometheusMetrics)")    public void pcMethod() {    }    @Around(value="pcMethod() && @annotation(annotation)")    public Object MetricsCollector(ProceedingJoinPoint joinPoint, PrometheusMetrics annotation) throws Throwable {        MethodSignature methodSignature = (MethodSignature) joinPoint.getSignature();        PrometheusMetrics prometheusMetrics = methodSignature.getMethod().getAnnotation(PrometheusMetrics.class);        if (prometheusMetrics != null) {            String name;            if (StringUtils.isNotEmpty(prometheusMetrics.name()) ){                name = prometheusMetrics.name();            }else{                HttpServletRequest request = ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes())                        .getRequest();                name = request.getRequestURI();            }            requestTotal.labels(name).inc();            Histogram.Timer requestTimer = histogram.labels(name).startTimer();            Object object;            try {                object = joinPoint.proceed();            } catch (Exception e) {                requestError.labels(name).inc();                throw e;            } finally {                requestTimer.observeDuration();            }            return object;        } else {            return joinPoint.proceed();        }    }}

@RequestMapping(value ="/hello", method = RequestMethod.GET)@ResponseBody@PrometheusMetricspublic String index() {     return "Hello World";}

http://localhost:9090/targets

多次访问 http://localhost:8888/web项目名/hello，然后在prometheus控制台查看相关metrics信息，couter_all，2个页签：Graph，Console