详解spring-boot actuator(监控)配置和使用

发布时间:2020-10-03 05:09:09 作者:Clement-Xu
来源:脚本之家 阅读:179

在生产环境中,需要实时或定期监控服务的可用性。spring-boot 的actuator(监控)功能提供了很多监控所需的接口。简单的配置和使用如下:

1、引入依赖:

<dependency> 
  <groupId>org.springframework.boot</groupId> 
  <artifactId>spring-boot-starter-actuator</artifactId> 
</dependency> 

如果使用http调用的方式,还需要这个依赖:

<dependency> 
  <groupId>org.springframework.boot</groupId> 
  <artifactId>spring-boot-starter-web</artifactId> 
</dependency> 

2、配置:

application.yml中指定监控的HTTP端口(如果不指定,则使用和server相同的端口);指定去掉某项的检查(比如不监控health.mail):

server: 
 port: 8082 
management: 
 port: 54001 
 health: 
  mail: 
   enabled: false 

3、使用:

查看health指标:http://localhost:54001/health

{"status":"UP","diskSpace":{"status":"UP","total":120031539200,"free":33554337792,"threshold":10485760},"db":{"status":"UP","dataSource1":{"status":"UP","database":"MySQL","hello":1},"dataSource2":{"status":"UP","database":"MySQL","hello":1}}} 

4、自定义指标:

4.1 /health:在某个类中implements HealthIndicator接口,然后实现其中的health()方法即可:

代码:

@SpringBootApplication 
@EnableScheduling 
public class MySpringBootApplication implements HealthIndicator{ 
  private static Logger logger = LoggerFactory.getLogger(MySpringBootApplication.class); 
   
  public static void main(String[] args) { 
    SpringApplication.run(MySpringBootApplication.class, args); 
    logger.info("My Spring Boot Application Started"); 
  } 
 
  /** 
   * 在/health接口调用的时候,返回多一个属性:"mySpringBootApplication":{"status":"UP","hello":"world"} 
   */ 
  @Override 
  public Health health() { 
    return Health.up().withDetail("hello", "world").build(); 
  } 
} 

/health 运行结果(注意第二个指标):

{"status":"UP","mySpringBootApplication":{"status":"UP","hello":"world"},"diskSpace":{"status":"UP","total":120031539200,"free":33554337792,"threshold":10485760},"db":{"status":"UP","dataSource1":{"status":"UP","database":"MySQL","hello":1},"dataSource2":{"status":"UP","database":"MySQL","hello":1}}}

4.2 /info:配置如下,可以直接给一个字符串,也可以从pom.xml配置中获取

info: 
 app: 
  name: "@project.name@" #从pom.xml中获取 
  description: "@project.description@" 
  version: "@project.version@" 
  spring-boot-version: "@project.parent.version@" 

/info的结果如下:

{"app":{"name":"my-spring-boot","description":"Test Project for Spring Boot","version":"1.0","spring-boot-version":"1.3.6.RELEASE"}}

官网:http://docs.spring.io/spring-boot/docs/current/reference/htmlsingle/#production-ready

源代码参考:https://github.com/xujijun/my-spring-boot

以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持亿速云。

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