Spring Boot健康端点添加自定义字段不显示问题求助

• 配置健康检查详情展示级别
  默认Spring Boot Actuator健康端点仅返回整体状态，不会展示各健康指示器的自定义字段。需在application.properties中添加以下配置开启详情展示：

# 始终显示所有详情（生产环境推荐使用when-authorized，仅授权用户可见）
management.endpoint.health.show-details=always
# 或单独开启组件详情展示
management.endpoint.health.show-components=always

• 检查自定义HealthIndicator代码实现
  确保你在doHealthCheck方法中正确调用withDetail添加自定义字段，且类上标注了@Component让Spring扫描到该Bean：

@Component
public class CustomHealthCheck extends AbstractHealthIndicator {
    @Override
    protected void doHealthCheck(Health.Builder builder) throws Exception {
        // 自定义检查逻辑示例
        boolean serviceOk = true;
        if (serviceOk) {
            builder.up()
                  .withDetail("custom-service", "运行正常")
                  .withDetail("check-time", System.currentTimeMillis());
        } else {
            builder.down()
                  .withDetail("error-info", "服务连接失败");
        }
    }
}

• 验证结果
  重启应用后访问/actuator/health，响应会包含自定义字段，示例如下：

{
  "status": "UP",
  "components": {
    "customHealthCheck": {
      "status": "UP",
      "details": {
        "custom-service": "运行正常",
        "check-time": 1718923456789
      }
    },
    "diskSpace": {
      "status": "UP",
      "details": {
        "total": 250685578240,
        "free": 123456789012,
        "threshold": 10485760
      }
    }
  }
}

内容的提问来源于stack exchange，提问作者lm.