spring boot starter actuator（健康监控）配置和使用教程

<!-- spring-boot-监控-->
<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>

server:
 port: 8083
management:
  port: 8083
  security:
   enabled: false #

info.app.version=v1.2.0
info.app.name=abc

info.app.version=v1.2.0
info.app.name=abc
#远程关闭开启
endpoints.shutdown.enabled=true 
#访问：http://localhost:8083/shutdown  关闭服务

{
mem: 573549,  //内存大小
mem.free: 388198, //内存剩余大小
processors: 4, //处理器数量
instance.uptime: 338426,
uptime: 345091,
systemload.average: -1,
heap.committed: 489984,
heap.init: 131072,
heap.used: 101785,
heap: 1842688,
nonheap.committed: 85056,
nonheap.init: 2496,
nonheap.used: 83566,
nonheap: 0,
threads.peak: 46,
threads.daemon: 36,
threads.totalStarted: 72,
threads: 39, //线程
classes: 12109,
classes.loaded: 12109, //加载的类
classes.unloaded: 0, //没加载的类
gc.ps_scavenge.count: 10,
gc.ps_scavenge.time: 103,
gc.ps_marksweep.count: 3,
gc.ps_marksweep.time: 219,
httpsessions.max: -1,
httpsessions.active: 0,
gauge.response.mappings: 3,
gauge.response.autoconfig: 4,
gauge.response.trace: 167,
counter.status.200.mappings: 1,
counter.status.200.autoconfig: 2,
counter.status.200.trace: 1
}

#关闭metrics功能
endpoints.metrics.enabled=false
#开启shutdown远程关闭功能
endpoints.shutdown.enabled=true
#设置beansId
endpoints.beans.id=mybean
#设置beans路径
endpoints.beans.path=/bean
#关闭beans 功能
endpoints.beans.enabled=false
#关闭所有的
endpoints.enabled=false 
#开启单个beans功能
endpoints.beans.enabled=true
#所有访问添加根目录
management.context-path=/manage​
management.port=8181

{
  status: "DOWN", //状态
  diskSpace: {
  status: "UP",
  total: 395243941888,
  free: 367246643200,
  threshold: 10485760
  },
  rabbit: {
  status: "DOWN",
  error: "org.springframework.amqp.AmqpConnectException: java.net.ConnectException: Connection refused: connect"
  },
  redis: {
  status: "UP",
  version: "4.0.9"
  },
  db: {
  status: "UP",
  database: "MySQL",
  hello: 1
  }
}

import org.springframework.boot.actuate.health.Health;
import org.springframework.boot.actuate.health.HealthIndicator;
import org.springframework.stereotype.Component;
@Component
public class MyAppHealthIndicator implements HealthIndicator {
​
  @Override
  public Health health() {
​
    //自定义的检查方法
    //Health.up().build()代表健康
    return Health.down().withDetail("msg","服务异常").build();
  }
}