Tracing
从 5 版本开始，Spring Batch 通过 Micrometer 的 Observation API 提供追踪。默认情况下，在使用 @EnableBatchProcessing 时启用追踪。Spring Batch 会为每次作业执行创建一条跟踪，为每个步骤执行创建一个小段。
As of version 5, Spring Batch provides tracing through Micrometer’s Observation API. By default, tracing is enabled
when using @EnableBatchProcessing. Spring Batch will create a trace for each job execution and a span for each
step execution.
如果您不使用 EnableBatchProcessing，则需要在您的应用程序上下文中注册一个 BatchObservabilityBeanPostProcessor，这将自动在您的作业和步骤 Bean 中设置 Micrometer 的观察能力。
If you do not use EnableBatchProcessing, you need to register a BatchObservabilityBeanPostProcessor in your
application context, which will automatically setup Micrometer’s observability in your jobs and steps beans.