# 使用 Spring `TaskScheduler`进行 Spring Batch 作业调度 > 原文： [https://howtodoinjava.com/spring-batch/job-scheduler-example/](https://howtodoinjava.com/spring-batch/job-scheduler-example/) 在企业应用程序中，您将需要将 **cron 表达式**传递给 Spring `TaskScheduler`，在固定的时间表上定期执行 Spring Batch 作业。 在此示例中，我们将使用 spring 的内置调度功能执行[示例 Spring Batch 作业](https://howtodoinjava.com/spring-batch/java-config-multiple-steps/)。 ## 配置批处理作业调度程序 要配置，批处理作业调度分两个步骤完成： 1. 启用带有[`@EnableScheduling`](https://docs.spring.io/spring-framework/docs/current/javadoc-api/org/springframework/scheduling/annotation/EnableScheduling.html)注解的调度。 2. 创建带有[`@Scheduled`](https://docs.spring.io/spring-framework/docs/current/javadoc-api/org/springframework/scheduling/annotation/Scheduled.html)注解的方法，并使用 cron 作业提供重复详细信息。 在此方法内添加作业执行逻辑。 `Cron scheduling on spring batch job` ```java package com.howtodoinjava.demo; import org.springframework.batch.core.Job; import org.springframework.batch.core.JobParameters; import org.springframework.batch.core.JobParametersBuilder; import org.springframework.batch.core.launch.JobLauncher; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.scheduling.annotation.EnableScheduling; import org.springframework.scheduling.annotation.Scheduled; @SpringBootApplication @EnableScheduling public class App { @Autowired JobLauncher jobLauncher; @Autowired Job job; public static void main(String[] args) { SpringApplication.run(App.class, args); } @Scheduled(cron = "0 */1 * * * ?") public void perform() throws Exception { JobParameters params = new JobParametersBuilder() .addString("JobID", String.valueOf(System.currentTimeMillis())) .toJobParameters(); jobLauncher.run(job, params); } } ``` 批处理作业将在应用程序启动后每隔一分钟运行一次。 > 要引用作业和任务源代码，请阅读[ Spring batch Java 配置示例](https://howtodoinjava.com/spring-batch/java-config-multiple-steps/)。 ## 示例 现在，如果您运行该应用程序并验证日志，您将看到该作业每分钟都在运行。 `Console` ```java 2018-07-04 15:57:00.073 INFO 7320 --- [pool-1-thread-1] o.s.b.c.l.support.SimpleJobLauncher : Job: [SimpleJob: [name=demoJob]] launched with the following parameters: [{JobID=1530700020003}] 2018-07-04 15:57:00.097 INFO 7320 --- [pool-1-thread-1] o.s.batch.core.job.SimpleStepHandler : Executing step: [stepOne] MyTaskOne start.. MyTaskOne done.. 2018-07-04 15:57:00.118 INFO 7320 --- [pool-1-thread-1] o.s.batch.core.job.SimpleStepHandler : Executing step: [stepTwo] MyTaskTwo start.. MyTaskTwo done.. 2018-07-04 15:57:00.125 INFO 7320 --- [pool-1-thread-1] o.s.b.c.l.support.SimpleJobLauncher : Job: [SimpleJob: [name=demoJob]] completed with the following parameters: [{JobID=1530700020003}] and the following status: [COMPLETED] 2018-07-04 15:58:00.007 INFO 7320 --- [pool-1-thread-1] o.s.b.c.l.support.SimpleJobLauncher : Job: [SimpleJob: [name=demoJob]] launched with the following parameters: [{JobID=1530700080002}] 2018-07-04 15:58:00.011 INFO 7320 --- [pool-1-thread-1] o.s.batch.core.job.SimpleStepHandler : Executing step: [stepOne] MyTaskOne start.. MyTaskOne done.. 2018-07-04 15:58:00.021 INFO 7320 --- [pool-1-thread-1] o.s.batch.core.job.SimpleStepHandler : Executing step: [stepTwo] MyTaskTwo start.. MyTaskTwo done.. 2018-07-04 15:58:00.029 INFO 7320 --- [pool-1-thread-1] o.s.b.c.l.support.SimpleJobLauncher : Job: [SimpleJob: [name=demoJob]] completed with the following parameters: [{JobID=1530700080002}] and the following status: [COMPLETED] ``` 将我的问题放在评论部分。 学习愉快！