Spring Boot + Prometheus + Grafana 打造可视化监控，一目了然！

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
    <groupId>org.projectlombok</groupId>
    <artifactId>lombok</artifactId>
    <optional>true</optional>
</dependency>
<dependency>
    <groupId>io.prometheus</groupId>
    <artifactId>simpleclient_spring_boot</artifactId>
    <version>0.8.1</version>
</dependency>
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-security</artifactId>
</dependency>

@EnablePrometheusEndpoint 
@EnableSpringBootMetricsCollector 
@SpringBootApplication 
public class MonitorDemoApplication { 
 
    public static void main(String[] args) { 
        SpringApplication.run(MonitorDemoApplication.class, args); 
    } 
 
}

server: 
  port: 8848 
spring: 
  application: 
    name: monitor-demo 
 
security: 
  user: 
    name: admin 
    password: 1234 
  basic: 
    enabled: true 
    # 安全路径列表，逗号分隔，此处只针对/admin路径进行认证 
    path: /admin 
 
# actuator暴露接口的前缀 
management: 
  context-path: /admin 
  # actuator暴露接口使用的端口，为了和api接口使用的端口进行分离 
  port: 8888 
  security: 
    enabled: true 
    roles: SUPERUSER

@RequestMapping("/heap/test")
@RestController
public class TestController {

    public static final Map<String, Object> map = new ConcurrentHashMap<>();

    @RequestMapping("")
    public String testHeapUsed() {
        for (int i = 0; i < 10000000; i++) {
            map.put(i + "", new Object());
        }
        return "ok";
    }
}

scrape_configs: 
  # The job name is added as a label `job=<job_name>` to any timeseries scraped from this config. 
  # - job_name: 'prometheus' 
 
    # metrics_path defaults to '/metrics' 
    # scheme defaults to 'http'. 
 
    # static_configs: 
    # - targets: ['localhost:9090'] 
  - job_name: 'monitor-demo' 
    scrape_interval: 5s # 刮取的时间间隔 
    scrape_timeout: 5s  
    metrics_path: /admin/prometheus 
    scheme: http 
    basic_auth: #认证信息 
      username: admin 
      password: 1234 
    static_configs: 
      - targets: 
        - 127.0.0.1:8888  #此处填写 Spring Boot 应用的 IP + 端口号

prometheus.exe --config.file=prometheus.yml

################### SMTP / Emailing ###################
[smtp]
enabled = true
host = smtp.exmail.qq.com:465
user = xxxx@ininin.com
# If the password contains # or ; you have to wrap it with triple quotes. Ex """#password;"""
password = XXX
cert_file =
key_file =
skip_verify = true
from_address = xxxx@ininin.com
from_name = Grafana
ehlo_identity = ininin.com

grafana-server.exe -config=E:filegrafana-6.3.3confcustom.ini