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spring-boot actuator(监控)配置和使用

2017-04-07 19:23 281 查看
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:

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<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:

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<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):

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server:  

  port: 8082  

management:  

  port: 54001  

  health:  

    mail:  

      enabled: false  

3、使用:
查看health指标:http://localhost:54001/health

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{"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:

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@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

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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"}}
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