如何运行具有两个独立作业的批处理项目？

Question

我开始在Spring Batch创建一个项目，我创建了两个彼此没有关系的不同类。

这是NotificationOne.java 类：

@Slf4j
public class NotificationOne {
   public NotificationDataOne {
      log.info("NotificationDataOne");
   }
}

这是NotificationTwo.java 类：

@Slf4j
public class NotificationOTwo {
   public NotificationDataTwo {
      log.info("NotificationDataTwo");
   }
}

这是我目前拥有但不知道如何完成的配置：

@Configuration
@EnableBatchProcessing
public class JobBatchConfiguration {
    
    @Autowired
    public JobBuilderFactory jobBuilderFactory;

    @Autowired
    public StepBuilderFactory stepBuilderFactory;
    
    @Bean
    public Job jobOne(NotificationOne notificationOne) {
      return jobBuilderFactory.get("jobOne").incrementer(new RunIdIncrementer())
          .listener(notificationOne).flow(null).end().build();
    }  

}

我需要的是能够启动这两个类并在配置类中进行配置。

Answer 1

唯一的事情是执行该类，但我不知道如何创建或修改配置案例。请您告诉我如何启动作业？

这是一个快速的 hello world 作业以及如何从 main 方法启动它：

import org.springframework.batch.core.Job;
import org.springframework.batch.core.JobExecution;
import org.springframework.batch.core.JobExecutionListener;
import org.springframework.batch.core.JobParameters;
import org.springframework.batch.core.configuration.annotation.EnableBatchProcessing;
import org.springframework.batch.core.configuration.annotation.JobBuilderFactory;
import org.springframework.batch.core.configuration.annotation.StepBuilderFactory;
import org.springframework.batch.core.launch.JobLauncher;
import org.springframework.batch.repeat.RepeatStatus;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.AnnotationConfigApplicationContext;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

@Configuration
@EnableBatchProcessing
public class MyJobConfiguration {

    @Bean
    public Job job(JobBuilderFactory jobs, StepBuilderFactory steps) {
        return jobs.get("job")
                .start(steps.get("step")
                        .tasklet((contribution, chunkContext) -> {
                            System.out.println("hello world");
                            return RepeatStatus.FINISHED;
                        })
                        .build())
                .listener(new NotificationOne())
                .build();
    }

    public static void main(String[] args) throws Exception {
        ApplicationContext context = new AnnotationConfigApplicationContext(MyJobConfiguration.class);
        JobLauncher jobLauncher = context.getBean(JobLauncher.class);
        Job job = context.getBean(Job.class);
        jobLauncher.run(job, new JobParameters());
    }

    static class NotificationOne implements JobExecutionListener {

        @Override
        public void beforeJob(JobExecution jobExecution) {
            System.out.println("NotificationOne.beforeJob");
        }

        @Override
        public void afterJob(JobExecution jobExecution) {
            System.out.println("NotificationOne.afterJob");
        }
    }

}

打印出来：

NotificationOne.beforeJob
hello world
NotificationOne.afterJob