快来试试 Spring Boot 应用可视化监控，一目了然！

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1、Spring Boot 应用暴露监控指标【版本 1.5.7.RELEASE】

<span class="code-snippet_outer" style="max-width: 1000%; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span class="code-snippet__tag" style="max-width: 1000%;"><<span class="code-snippet__name" style="max-width: 1000%; box-sizing: border-box !important; overflow-wrap: break-word !important;">dependency</span>></span>       </span>

<span class="code-snippet_outer" style="max-width: 1000%; box-sizing: border-box !important; overflow-wrap: break-word !important;">   <span class="code-snippet__tag" style="max-width: 1000%;"><<span class="code-snippet__name" style="max-width: 1000%; box-sizing: border-box !important; overflow-wrap: break-word !important;">groupId</span>></span>org.springframework.boot<span class="code-snippet__tag" style="max-width: 1000%;"></<span class="code-snippet__name" style="max-width: 1000%; box-sizing: border-box !important; overflow-wrap: break-word !important;">groupId</span>></span>     </span>

<span class="code-snippet_outer" style="max-width: 1000%; box-sizing: border-box !important; overflow-wrap: break-word !important;">   <span class="code-snippet__tag" style="max-width: 1000%;"><<span class="code-snippet__name" style="max-width: 1000%; box-sizing: border-box !important; overflow-wrap: break-word !important;">artifactId</span>></span>spring-boot-starter-actuator<span class="code-snippet__tag" style="max-width: 1000%;"></<span class="code-snippet__name" style="max-width: 1000%; box-sizing: border-box !important; overflow-wrap: break-word !important;">artifactId</span>></span>  </span>

<span class="code-snippet_outer" style="max-width: 1000%; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span class="code-snippet__tag" style="max-width: 1000%;"></<span class="code-snippet__name" style="max-width: 1000%; box-sizing: border-box !important; overflow-wrap: break-word !important;">dependency</span>></span>   </span>

采集应用的指标信息，我们使用的是prometheus,相应的我们引入包：

<span class="code-snippet_outer" style="max-width: 1000%; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span class="code-snippet__tag" style="max-width: 1000%;"><<span class="code-snippet__name" style="max-width: 1000%; box-sizing: border-box !important; overflow-wrap: break-word !important;">dependency</span>></span>          </span>

<span class="code-snippet_outer" style="max-width: 1000%; box-sizing: border-box !important; overflow-wrap: break-word !important;">  <span class="code-snippet__tag" style="max-width: 1000%;"><<span class="code-snippet__name" style="max-width: 1000%; box-sizing: border-box !important; overflow-wrap: break-word !important;">groupId</span>></span>io.prometheus<span class="code-snippet__tag" style="max-width: 1000%;"></<span class="code-snippet__name" style="max-width: 1000%; box-sizing: border-box !important; overflow-wrap: break-word !important;">groupId</span>></span>    </span>

<span class="code-snippet_outer" style="max-width: 1000%; box-sizing: border-box !important; overflow-wrap: break-word !important;">  <span class="code-snippet__tag" style="max-width: 1000%;"><<span class="code-snippet__name" style="max-width: 1000%; box-sizing: border-box !important; overflow-wrap: break-word !important;">artifactId</span>></span>simpleclient_spring_boot<span class="code-snippet__tag" style="max-width: 1000%;"></<span class="code-snippet__name" style="max-width: 1000%; box-sizing: border-box !important; overflow-wrap: break-word !important;">artifactId</span>></span>                     <span class="code-snippet__tag" style="max-width: 1000%;"><<span class="code-snippet__name" style="max-width: 1000%; box-sizing: border-box !important; overflow-wrap: break-word !important;">version</span>></span>0.0.26<span class="code-snippet__tag" style="max-width: 1000%;"></<span class="code-snippet__name" style="max-width: 1000%; box-sizing: border-box !important; overflow-wrap: break-word !important;">version</span>></span>    </span>

<span class="code-snippet_outer" style="max-width: 1000%; box-sizing: border-box !important; overflow-wrap: break-word !important;"></<span class="code-snippet__name" style="max-width: 1000%;">dependency</span>></span>

然后，在启动类 Application.java 添加如下注解：

<span class="code-snippet_outer" style="max-width: 1000%; box-sizing: border-box !important; overflow-wrap: break-word !important;">@SpringBootApplication</span>

<span class="code-snippet_outer" style="max-width: 1000%; box-sizing: border-box !important; overflow-wrap: break-word !important;">@EnablePrometheusEndpoint</span>

<span class="code-snippet_outer" style="max-width: 1000%; box-sizing: border-box !important; overflow-wrap: break-word !important;">@EnableSpringBootMetricsCollector</span>

<span class="code-snippet_outer" style="max-width: 1000%; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span class="code-snippet__keyword" style="max-width: 1000%;">public</span> <span class="code-snippet__class" style="max-width: 1000%;"><span class="code-snippet__keyword" style="max-width: 1000%; box-sizing: border-box !important; overflow-wrap: break-word !important;">class</span> <span class="code-snippet__title" style="max-width: 1000%; box-sizing: border-box !important; overflow-wrap: break-word !important;">Application</span> </span>{  </span>

<span class="code-snippet_outer" style="max-width: 1000%; box-sizing: border-box !important; overflow-wrap: break-word !important;">    <span class="code-snippet__function" style="max-width: 1000%;"><span class="code-snippet__keyword" style="max-width: 1000%; box-sizing: border-box !important; overflow-wrap: break-word !important;">public</span> <span class="code-snippet__keyword" style="max-width: 1000%; box-sizing: border-box !important; overflow-wrap: break-word !important;">static</span> <span class="code-snippet__keyword" style="max-width: 1000%; box-sizing: border-box !important; overflow-wrap: break-word !important;">void</span> <span class="code-snippet__title" style="max-width: 1000%; box-sizing: border-box !important; overflow-wrap: break-word !important;">main(String[] args)</span> </span>{        SpringApplication.run(Application.class, args); </span>

<span class="code-snippet_outer" style="max-width: 1000%; box-sizing: border-box !important; overflow-wrap: break-word !important;"> }</span>

<span class="code-snippet_outer" style="max-width: 1000%; box-sizing: border-box !important; overflow-wrap: break-word !important;">}</span>

最后，配置默认的登录账号和密码，在 application.yml 中：

<span class="code-snippet_outer" style="max-width: 1000%; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span class="code-snippet__attr" style="max-width: 1000%;">security</span>:</span>

<span class="code-snippet_outer" style="max-width: 1000%; box-sizing: border-box !important; overflow-wrap: break-word !important;">  <span class="code-snippet__attr" style="max-width: 1000%;">user</span>:</span>

<span class="code-snippet_outer" style="max-width: 1000%; box-sizing: border-box !important; overflow-wrap: break-word !important;">    <span class="code-snippet__attr" style="max-width: 1000%;">name</span>:<span class="code-snippet__string" style="max-width: 1000%;">user</span></span>

<span class="code-snippet_outer" style="max-width: 1000%; box-sizing: border-box !important; overflow-wrap: break-word !important;">    <span class="code-snippet__attr" style="max-width: 1000%;">password</span>: <span class="code-snippet__string" style="max-width: 1000%;">pwd</span></span>

启动应用程序后，会看到如下一系列的 Mappings

img

利用账号密码访问 http://localhost:8080/application/prometheus ，可以看到 Prometheus 格式的指标数据

2、Prometheus 采集 Spring Boot 指标数据

首先，获取 Prometheus 的 Docker 镜像：

<span class="code-snippet_outer" style="max-width: 1000%; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span class="code-snippet__meta" style="max-width: 1000%;">$</span> docker pull prom/prometheus</span>

然后，编写配置文件 prometheus.yml ：

<span class="code-snippet_outer" style="max-width: 1000%; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span class="code-snippet__attr" style="max-width: 1000%;">global</span>:</span>

<span class="code-snippet_outer" style="max-width: 1000%; box-sizing: border-box !important; overflow-wrap: break-word !important;">  <span class="code-snippet__attr" style="max-width: 1000%;">scrape_interval</span>: <span class="code-snippet__string" style="max-width: 1000%;">10s</span></span>

<span class="code-snippet_outer" style="max-width: 1000%; box-sizing: border-box !important; overflow-wrap: break-word !important;">  <span class="code-snippet__attr" style="max-width: 1000%;">scrape_timeout</span>: <span class="code-snippet__string" style="max-width: 1000%;">10s</span></span>

<span class="code-snippet_outer" style="max-width: 1000%; box-sizing: border-box !important; overflow-wrap: break-word !important;">  <span class="code-snippet__attr" style="max-width: 1000%;">evaluation_interval</span>: <span class="code-snippet__string" style="max-width: 1000%;">10m</span></span>

<span class="code-snippet_outer" style="max-width: 1000%; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span class="code-snippet__attr" style="max-width: 1000%;">scrape_configs</span>:</span>

<span class="code-snippet_outer" style="max-width: 1000%; box-sizing: border-box !important; overflow-wrap: break-word !important;">  <span class="code-snippet__meta" style="max-width: 1000%;">-</span> <span class="code-snippet__string" style="max-width: 1000%;">job_name: spring-boot</span></span>

<span class="code-snippet_outer" style="max-width: 1000%; box-sizing: border-box !important; overflow-wrap: break-word !important;">    <span class="code-snippet__attr" style="max-width: 1000%;">scrape_interval</span>: <span class="code-snippet__string" style="max-width: 1000%;">5s</span></span>

<span class="code-snippet_outer" style="max-width: 1000%; box-sizing: border-box !important; overflow-wrap: break-word !important;">    <span class="code-snippet__attr" style="max-width: 1000%;">scrape_timeout</span>: <span class="code-snippet__string" style="max-width: 1000%;">5s</span></span>

<span class="code-snippet_outer" style="max-width: 1000%; box-sizing: border-box !important; overflow-wrap: break-word !important;">    <span class="code-snippet__attr" style="max-width: 1000%;">metrics_path</span>: <span class="code-snippet__string" style="max-width: 1000%;">/application/prometheus</span></span>

<span class="code-snippet_outer" style="max-width: 1000%; box-sizing: border-box !important; overflow-wrap: break-word !important;">    <span class="code-snippet__attr" style="max-width: 1000%;">scheme</span>: <span class="code-snippet__string" style="max-width: 1000%;">http</span></span>

<span class="code-snippet_outer" style="max-width: 1000%; box-sizing: border-box !important; overflow-wrap: break-word !important;">    <span class="code-snippet__attr" style="max-width: 1000%;">basic_auth</span>:</span>

<span class="code-snippet_outer" style="max-width: 1000%; box-sizing: border-box !important; overflow-wrap: break-word !important;">      <span class="code-snippet__attr" style="max-width: 1000%;">username</span>: <span class="code-snippet__string" style="max-width: 1000%;">admin</span></span>

<span class="code-snippet_outer" style="max-width: 1000%; box-sizing: border-box !important; overflow-wrap: break-word !important;">      <span class="code-snippet__attr" style="max-width: 1000%;">password</span>: <span class="code-snippet__string" style="max-width: 1000%;">123456</span></span>

<span class="code-snippet_outer" style="max-width: 1000%; box-sizing: border-box !important; overflow-wrap: break-word !important;">    <span class="code-snippet__attr" style="max-width: 1000%;">static_configs</span>:</span>

<span class="code-snippet_outer" style="max-width: 1000%; box-sizing: border-box !important; overflow-wrap: break-word !important;">      <span class="code-snippet__meta" style="max-width: 1000%;">-</span> <span class="code-snippet__string" style="max-width: 1000%;">targets:</span></span>

<span class="code-snippet_outer" style="max-width: 1000%; box-sizing: border-box !important; overflow-wrap: break-word !important;">        <span class="code-snippet__meta" style="max-width: 1000%;">-</span> <span class="code-snippet__string" style="max-width: 1000%;">192.168.11.54:8099 #此处填写 Spring Boot 应用的 IP + 端口号</span></span>

接着，启动 Prometheus :

<span class="code-snippet_outer" style="max-width: 1000%; box-sizing: border-box !important; overflow-wrap: break-word !important;">docker run -d --name prometheus -p <span class="code-snippet__number" style="max-width: 1000%;">9090</span>:<span class="code-snippet__number" style="max-width: 1000%;">9090</span></span>

<span class="code-snippet_outer" style="max-width: 1000%; box-sizing: border-box !important; overflow-wrap: break-word !important;">-v D:testactuatorprometheusprometheus.yml:<span class="code-snippet__regexp" style="max-width: 1000%;">/etc/</span>prometheus/prometheus.yml prom/prometheus</span>

请注意，D:testactuatorprometheusprometheus.yml ，是我的配置文件存放地址，我们需要将它放到容器里面去，所以用了-v来做文件映射。/etc/prometheus/prometheus.yml这个是容器启动的时候去取的默认配置，这里我是直接覆盖掉了它。prom/prometheus这是镜像，如果本地没有，就回去你设置好的镜像仓库去取。

启动完成后用docker ps看下是否已经启动成功，之后打开浏览器输入：
http://localhost:9090/targets,检查 Spring Boot 采集状态是否正常,如果看到下图就是成功了。

img

3、Grafana 可视化监控数据

首先，获取 Grafana 的 Docker 镜像：

<span class="code-snippet_outer" style="max-width: 1000%; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span class="code-snippet__meta" style="max-width: 1000%;">$</span> docker pull grafana/grafana1</span>

然后，启动 Grafana：

<span class="code-snippet_outer" style="max-width: 1000%; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span class="code-snippet__meta" style="max-width: 1000%;">$</span> docker run --name grafana -d -p 3000:3000 grafana/grafana1</span>

接着，访问 http://localhost:3000/ 配置 Prometheus 数据源：