SpringBoot的监控及使用详解

$ curl localhost:8080/actuator/health
{"status":"UP"}

$ curl localhost:8080/actuator/metrics/http.server.requests
{
  "name": "http.server.requests",
  "baseUnit": "seconds",
  "measurements": [
    {
      "statistic": "COUNT",
      "value": 18.0
    },
    {
      "statistic": "TOTAL_TIME",
      "value": 0.006175232
    },
    {
      "statistic": "MAX",
      "value": 0.001184169
    }
  ],
  "availableTags": [
    {
      "tag": "uri",
      "values": [
        "/actuator/metrics",
        "/actuator/health",
        "/favicon.ico"
      ]
    },
    {
      "tag": "outcome",
      "values": [
        "SUCCESS"
      ]
    },
    {
      "tag": "method",
      "values": [
        "GET"
      ]
    },
    {
      "tag": "status",
      "values": [
        "200"
      ]
    }
  ]
}

$ curl localhost:8080/actuator/loggers/com.example
{
  "configuredLevel": "DEBUG",
  "effectiveLevel": "DEBUG"
}
$ curl -X POST localhost:8080/actuator/loggers/com.example -H 'Content-Type: application/json' -d '{"configuredLevel": "INFO"}'
{
  "configuredLevel": "INFO",
  "effectiveLevel": "INFO"
}

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

@Component
public class CustomHealthIndicator implements HealthIndicator {
    @Override    public Health health() {
        int errorCode = check(); // 自定义的健康状况检查方法
        if (errorCode != 0) {
            return Health.down().withDetail("Error Code", errorCode).build();
        }
        return Health.up().build();
    }
    private int check() {
        // 自定义的健康状况检查方法实现
        return 0;
    }
}
@Component
public class CustomMeterRegistryCustomizer implements MeterRegistryCustomizer<MeterRegistry> {
    @Override
    public void customize(MeterRegistry registry) {
        registry.config().commonTags("application", "myapp");
        // 自定义的度量注册器配置实现
    }
}