Run Spring Batch Job programmatically?

Question

I have a Spring Batch application, which I start with the CommandLineJobRunner. But now I have to embed this application into our corporate environment. There we ha

Answer 1

Using a Spring Boot Application if you don't want to use the CommandLineRunner (for some reason or if you need some custom logic), you can always do something like :

public static void main(String[] args) {

    SpringApplication app = new SpringApplication(YourApplication.class);
    app.setWebEnvironment(false);
    ConfigurableApplicationContext ctx = app.run(args);

    JobLauncher jobLauncher = ctx.getBean(JobLauncher.class);
    Job job = ctx.getBean("your-job-here", Job.class);
    JobParameters jobParameters = new JobParametersBuilder().toJobParameters();


    JobExecution jobExecution = jobLauncher.run(job, jobParameters);
    BatchStatus batchStatus = jobExecution.getStatus();
}

Answer 2

Yes, you can launch your job programmatically. If you see in the source of CommandLineJobRunner, the main method just create a Spring context and use the launcher to run the job. So you can do this in your new application.

Answer 3

JobLauncher can be used to invoke the Job programatically. JobLauncher can be autowired in your Servlet/Controller if you're looking for a way to trigger jobs from a webapp:

http://docs.spring.io/spring-batch/reference/htmlsingle/#runningJobsFromWebContainer