80. Batch applications
By default, batch applications require a
DataSource to store job details. If you want to deviate from that, you’ll need to implement
BatchConfigurer , see The Javadoc of @EnableBatchProcessing for more details.
Spring Batch auto-configuration is enabled by adding
@EnableBatchProcessing (from Spring Batch) somewhere in your context.
By default it executes all
Jobs in the application context on startup (see JobLauncherCommandLineRunner for details). You can narrow down to a specific job or jobs by specifying
spring.batch.job.names (comma-separated job name patterns).
If the application context includes a
JobRegistry then the jobs in
spring.batch.job.names are looked up in the registry instead of being autowired from the context. This is a common pattern with more complex systems where multiple jobs are defined in child contexts and registered centrally.