聊聊springboot项目如何实现自定义actuator端点

 <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();
        if (errorCode == 1) {
            return Health.down().withDetail("Error Code", errorCode).build();
        }
        return Health.up().build();
    }

    private int check() {
        // perform some specific health check
        return ThreadLocalRandom.current().nextInt(5);
    }

}

@Component("otherCustom")
public class CustomAbstractHealthIndicator extends AbstractHealthIndicator {
    @Override
    protected void doHealthCheck(Health.Builder builder) throws Exception {

        int errorCode = check();
        if (errorCode == 1) {
            builder.down().down().withDetail("Error Code", errorCode).build();
            return;
        }
        builder.up().build();

    }

    private int check() {
        // perform some specific health check
        return ThreadLocalRandom.current().nextInt(5);
    }
}

management:
   endpoint:
      health:
        show-details: always

@Component
public class CustomInfoContributor implements InfoContributor {

    @Override
    public void contribute(Info.Builder builder) {
        builder.withDetail("customInfo", Collections.singletonMap("hello", "world"));
    }

}

@Component
@Endpoint(id = "customEndpoint")
public class CustomEndpoint {

  // @ReadOperation 对应GET请求

  /**
   * 请求示例：
   * GET http://localhost:8080/actuator/customEndpoint/zhangsan/20
   * @param username
   * @param age
   *
   * @return
   */
  @ReadOperation
  public Map<String, Object> endpointByGet(@Selector String username,@Selector Integer age) {
    Map<String, Object> customMap = new HashMap<>();
    customMap.put("httpMethod", HttpMethod.GET.toString());
    customMap.put("username",username);
    customMap.put("age",age);
    return customMap;
  }


  // @WriteOperation 对应POST请求

  /**
   * 请求示例：
   * POST http://localhost:8080/actuator/customEndpoint
   *
   * 请求参数为json格式
   *
   * {
   *     "username": "zhangsan",
   *     "age": 20
   * }
   *
   * @param username 参数都为必填项
   * @param age 参数都为必填项
   * @return
   */
  @WriteOperation
  public Map<String, Object> endpointByPost(String username,Integer age) {
    Map<String, Object> customMap = new HashMap<>();
    customMap.put("httpMethod", HttpMethod.POST.toString());
    customMap.put("username",username);
    customMap.put("age",age);
    return customMap;
  }


  // @DeleteOperation 对应Delete请求

  /**
   * 请求示例：
   * DELETE http://localhost:8080/actuator/customEndpoint
   *
   * @return
   */
  @DeleteOperation
  public Map<String, Object> endpointByDelete() {
    Map<String, Object> customMap = new HashMap<>();
    customMap.put("httpMethod", HttpMethod.DELETE.toString());

    return customMap;
  }

management:
  endpoints:
    web:
      exposure:
        include: customEndpoint

management:
  endpoints:
    web:
      exposure:
        include: "*"