![9
@Bean
@StepScope
public FlatFileItemReader fileItemReader(
@Value("#{jobParameters['inputFile']}") String filePath) {
//
FlatFileItemReader<OriginalPerson> fileItemReader = new FlatFileItemReader<>();
fileItemReader.setResource(new FileSystemResource(filePath));
fileItemReader.setLineMapper(lineMapper);
return fileItemReader;
}
@Bean
@StepScope
public ItemProcessor itemProcessor() {
return new ItemProcessor<OriginalPerson, ProcessedPerson>() {
@Override
public ProcessedPerson process(OriginalPerson originalPerson)
throws Exception {
// ( OriginalPerson-> ProcessedPerson )
return processedPerson;
}
};
}](https://image.slidesharecdn.com/jsugspringbatchtipspublish-200512170251/85/Spring-Batch-Tips-9-320.jpg)
![10
@Bean
public Step demo02Step(ItemReader<OriginalPerson> reader,
ItemProcessor<OriginalPerson, ProcessedPerson> processor,
ItemWriter<ProcessedPerson> writer) {
return stepBuilderFactory.get("demo02Chunk")
.<OriginalPerson,ProcessedPerson> chunk(2)
.reader(reader)
.processor(processor)
.writer(writer)
.build();
}
@Bean
@StepScope
public FlatFileItemWriter fileItemWriter(
@Value("#{jobParameters['outputFile']}") String filePath) {
//
FlatFileItemWriter<ProcessedPerson> fileItemWriter
= new FlatFileItemWriter<>();
fileItemWriter.setResource(new FileSystemResource(filePath));
fileItemWriter.setLineAggregator(aggregator);
return fileItemWriter;
}](https://image.slidesharecdn.com/jsugspringbatchtipspublish-200512170251/85/Spring-Batch-Tips-10-320.jpg)
![20
@Bean
@StepScope
public FlatFileItemWriter fileItemWriter(
@Value("#{jobParameters['outputFile']}") String filePath) {
//
FlatFileItemWriter<ProcessedPerson> fileItemWriter
= new FlatFileItemWriter<>();
fileItemWriter.setResource(new FileSystemResource(filePath));
fileItemWriter.setLineAggregator(aggregator);
return fileItemWriter;
}](https://image.slidesharecdn.com/jsugspringbatchtipspublish-200512170251/85/Spring-Batch-Tips-20-320.jpg)
![21
@Bean
@StepScope
public FlatFileItemWriter fileItemWriter(
@Value("#{jobParameters['outputFile']}") String filePath) {
//
FlatFileItemWriter<ProcessedPerson> fileItemWriter
= new FlatFileItemWriter<>();
fileItemWriter.setResource(new FileSystemResource(filePath));
fileItemWriter.setLineAggregator(aggregator);
return fileItemWriter;
}](https://image.slidesharecdn.com/jsugspringbatchtipspublish-200512170251/85/Spring-Batch-Tips-21-320.jpg)
![36
@SpringBootApplication
@EnableBatchProcessing
public class BatchDemo01Application {
public static void main(String[] args) {
SpringApplication.run(BatchDemo01Application.class, args);
}
...
$ java -cp ${CLASSPATH}
org.springframework.batch.core.launch.support.CommandLineJobRunner
<Config FQCN> <Job > <Job 1>=< 1> <Job 2>=< 2> ...
$ java -jar myapp.jar -Dspring.batch.job.names=<Job ※>
<Job 1>=< 1> <Job 2>=< 2> ...](https://image.slidesharecdn.com/jsugspringbatchtipspublish-200512170251/85/Spring-Batch-Tips-36-320.jpg)
![37
@SpringBootApplication
@EnableBatchProcessing
public class BatchDemo01Application {
public static void main(String[] args) {
SpringApplication.run(BatchDemo01Application.class, args);
}
...
$ java -cp ${CLASSPATH}
org.springframework.batch.core.launch.support.CommandLineJobRunner
<Config FQCN> <Job > <Job 1>=< 1> <Job 2>=< 2> ...
$ java -jar myapp.jar -Dspring.batch.job.names=<Job ※>
<Job 1>=< 1> <Job 2>=< 2> ...](https://image.slidesharecdn.com/jsugspringbatchtipspublish-200512170251/85/Spring-Batch-Tips-37-320.jpg)
知っておきたいSpring Batch Tips
- 2. 2
- 3. 3
- 5. 5
- 7. 7
- 8. 8 @Bean public Step demo01Step(@Qualifier("demo01Takslet") Tasklet tasklet) { return stepBuilderFactory.get("demo01Takslet") .tasklet(tasklet).build(); } @Bean @StepScope public Tasklet demo01Takslet() { return new Tasklet() { @Override public RepeatStatus execute(StepContribution stepContribution, ChunkContext chunkContext) throws Exception { log.info("test tasklet 01."); // return RepeatStatus.FINISHED; } }; }
- 9. 9 @Bean @StepScope public FlatFileItemReader fileItemReader( @Value("#{jobParameters['inputFile']}") String filePath) { // FlatFileItemReader<OriginalPerson> fileItemReader = new FlatFileItemReader<>(); fileItemReader.setResource(new FileSystemResource(filePath)); fileItemReader.setLineMapper(lineMapper); return fileItemReader; } @Bean @StepScope public ItemProcessor itemProcessor() { return new ItemProcessor<OriginalPerson, ProcessedPerson>() { @Override public ProcessedPerson process(OriginalPerson originalPerson) throws Exception { // ( OriginalPerson-> ProcessedPerson ) return processedPerson; } }; }
- 10. 10 @Bean public Step demo02Step(ItemReader<OriginalPerson> reader, ItemProcessor<OriginalPerson, ProcessedPerson> processor, ItemWriter<ProcessedPerson> writer) { return stepBuilderFactory.get("demo02Chunk") .<OriginalPerson,ProcessedPerson> chunk(2) .reader(reader) .processor(processor) .writer(writer) .build(); } @Bean @StepScope public FlatFileItemWriter fileItemWriter( @Value("#{jobParameters['outputFile']}") String filePath) { // FlatFileItemWriter<ProcessedPerson> fileItemWriter = new FlatFileItemWriter<>(); fileItemWriter.setResource(new FileSystemResource(filePath)); fileItemWriter.setLineAggregator(aggregator); return fileItemWriter; }
- 15. 15
- 16. 16
- 17. 17
- 18. 18
- 20. 20 @Bean @StepScope public FlatFileItemWriter fileItemWriter( @Value("#{jobParameters['outputFile']}") String filePath) { // FlatFileItemWriter<ProcessedPerson> fileItemWriter = new FlatFileItemWriter<>(); fileItemWriter.setResource(new FileSystemResource(filePath)); fileItemWriter.setLineAggregator(aggregator); return fileItemWriter; }
- 21. 21 @Bean @StepScope public FlatFileItemWriter fileItemWriter( @Value("#{jobParameters['outputFile']}") String filePath) { // FlatFileItemWriter<ProcessedPerson> fileItemWriter = new FlatFileItemWriter<>(); fileItemWriter.setResource(new FileSystemResource(filePath)); fileItemWriter.setLineAggregator(aggregator); return fileItemWriter; }
- 28. 28 job_execution_id job_instance_id exit_code exit_message 1 1 COMPLETED 8 3 COMPLETED 16 15 FAILED java.lang.RuntimeException … 25 25 COMPLETED batch_job_execution step_execution_id step_name job_execution_id commit_count read_count filter_count write_count exit_code exit_message 1 demo01Takslet 1 1 0 0 0 COMPLETED 2 demo01Takslet 8 1 0 0 0 COMPLETED 9 demo01Takslet 16 0 0 0 0 FAILED java.lang.Runt imeException … 18 demo02Takslet 25 3 5 0 5 COMPLETED batch_step_execution job_instance_id job_name job_key 1 demo01_01 d41d8cd98f00b204e9800998ecf8427e 3 demo01_01 399aaf8689acbf6a6ed21f7a137a4856 15 demo01_01 778538c8d55ed78ad27391d38c1abad8 25 demo01_02 ad6211d2dc9567640fdbe0e5be840d75 batch_job_instance
- 29. 29 -- Autogenerated: do not edit this file CREATE TABLE BATCH_JOB_INSTANCE ( JOB_INSTANCE_ID BIGINT NOT NULL PRIMARY KEY , VERSION BIGINT , JOB_NAME VARCHAR(100) NOT NULL, JOB_KEY VARCHAR(32) NOT NULL, constraint JOB_INST_UN unique (JOB_NAME, JOB_KEY) ) ; CREATE TABLE BATCH_JOB_EXECUTION ( JOB_EXECUTION_ID BIGINT NOT NULL PRIMARY KEY , VERSION BIGINT , JOB_INSTANCE_ID BIGINT NOT NULL, CREATE_TIME TIMESTAMP NOT NULL, START_TIME TIMESTAMP DEFAULT NULL , END_TIME TIMESTAMP DEFAULT NULL , STATUS VARCHAR(10) , EXIT_CODE VARCHAR(2500) , EXIT_MESSAGE VARCHAR(2500) , LAST_UPDATED TIMESTAMP, JOB_CONFIGURATION_LOCATION VARCHAR(2500) NULL, constraint JOB_INST_EXEC_FK foreign key (JOB_INSTANCE_ID) references BATCH_JOB_INSTANCE(JOB_INSTANCE_ID) ) ; ... Spring Batch Jar DDL
- 30. 30 Spring @Bean public DataSource dataSource() { return new EmbeddedDatabaseBuilder() .setType(EmbeddedDatabaseType.H2) .addScript("classpath:org/springframework/batch/core/schema-h2.sql") .build(); } Spring Boot → DB spring.batch.initialize-schema=always # ON spring.batch.initialize-schema=never # OFF DB CI/CD DB
- 31. ( ) -> ( ) 31 https://docs.spring.io/spring-batch/docs/current/reference/html/index-single.html#metaDataArchiving
- 33. 33
- 34. @Bean public JsrJobParametersConverter jobParametersConverter() { return new JsrJobParametersConverter(dataSource); } 34
- 36. 36 @SpringBootApplication @EnableBatchProcessing public class BatchDemo01Application { public static void main(String[] args) { SpringApplication.run(BatchDemo01Application.class, args); } ... $ java -cp ${CLASSPATH} org.springframework.batch.core.launch.support.CommandLineJobRunner <Config FQCN> <Job > <Job 1>=< 1> <Job 2>=< 2> ... $ java -jar myapp.jar -Dspring.batch.job.names=<Job ※> <Job 1>=< 1> <Job 2>=< 2> ...
- 37. 37 @SpringBootApplication @EnableBatchProcessing public class BatchDemo01Application { public static void main(String[] args) { SpringApplication.run(BatchDemo01Application.class, args); } ... $ java -cp ${CLASSPATH} org.springframework.batch.core.launch.support.CommandLineJobRunner <Config FQCN> <Job > <Job 1>=< 1> <Job 2>=< 2> ... $ java -jar myapp.jar -Dspring.batch.job.names=<Job ※> <Job 1>=< 1> <Job 2>=< 2> ...
- 39. 39 @Bean @BatchDataSource public DataSource dsForJobRepos() { return dataSourceForJobRepos; } // TransactionManager @Bean @Primary public DataSource dsForApp() { return dataSourceForApplication; } @Bean public PlatformTransactionManager tmForApp( @Qualifier("dsForApp") DataSource ds) { return new DataSourceTransactionManager(ds); }
- 40. 40
- 41. 41
- 42. 42