springboot1.X接入Prometheus

摘自我球的docs文档，我没时间在CSDN上再写一份，见

pom添加依赖：

<dependency>
 <groupId>org.springframework.boot</groupId>
 <artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
 <groupId>io.prometheus</groupId>
 <artifactId>simpleclient_spring_boot</artifactId>
 <version>0.0.26</version>
</dependency>

application.yml配置监控指标：

## prometheus监控配置
management:
    security:
        enabled: false
prometheus.yml配置：

global:
  scrape_interval: 10s
  scrape_timeout: 10s
  evaluation_interval: 10m
scrape_configs:
  - job_name: redis-manager
    scrape_interval: 5s
    scrape_timeout: 5s
    metrics_path: /prometheus
    scheme: http
    # basic_auth:
    #   # 对应application.yml security配置
    #   username: admin
    #   password: 123456
    static_configs:
      - targets:
        - 127.0.0.1:18182

-------------样例 效果--------------

grafana的dashboard json demo：

simpleclient_spring_boot-1568689162837.json

Prometheus监控效果：

inteceptor.java统计QPS

public class RequestCounterInterceptor extends HandlerInterceptorAdapter {

    // @formatter:off
    // Note (1)
    private static final Counter requestTotal = Counter.build()
            .name("http_requests_total")
            .labelNames("method", "handler", "status")
            .help("Http Request Total").register();
    // @formatter:on

    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception e)
            throws Exception {
        // Update counters
        String handlerLabel = handler.toString();
        // get short form of handler method name
        if (handler instanceof HandlerMethod) {
            Method method = ((HandlerMethod) handler).getMethod();
            handlerLabel = method.getDeclaringClass().getSimpleName() + "." + method.getName();
        }
        // Note (2)
        requestTotal.labels(request.getMethod(), handlerLabel, Integer.toString(response.getStatus())).inc();
    }
}

知道三个维度就行。