Examples with FlatFileItemWriter org.springframework.batch.item.file.FlatFileItemWriter used on opensource projects

Example 1 with FlatFileItemWriter

use of org.springframework.batch.item.file.FlatFileItemWriter in project Spring-Family by Sierou-Java.

the class Main method main.

public static void main(String[] args) {
    try {
        String[] configLocations = { "classpath*:applicationContext.xml" };
        ApplicationContext applicationContext = new ClassPathXmlApplicationContext(configLocations);
        JobLauncher jobLauncher = applicationContext.getBean(JobLauncher.class);
        JobRepository jobRepository = applicationContext.getBean(JobRepository.class);
        PlatformTransactionManager transactionManager = applicationContext.getBean(PlatformTransactionManager.class);
        // 创建reader
        FlatFileItemReader<DeviceCommand> flatFileItemReader = new FlatFileItemReader<>();
        flatFileItemReader.setResource(new FileSystemResource("/project/Spring-Family-Parent/Spring-Family-Batch/src/main/resources/batch-data.csv"));
        // // 转换数据
        flatFileItemReader.setLineMapper(new DemoLineMapper());
        // 创建processor 对数据进行操作
        DemoProcessor helloItemProcessor = new DemoProcessor();
        // 创建writer
        FlatFileItemWriter<DeviceCommand> flatFileItemWriter = new FlatFileItemWriter<>();
        flatFileItemWriter.setResource(new FileSystemResource("/project/Spring-Family-Parent/Spring-Family-Batch/src/main/resources/batch-data.csv"));
        flatFileItemWriter.setLineAggregator(new DemoLineAggregator());
        // 创建Step
        StepBuilderFactory stepBuilderFactory = new StepBuilderFactory(jobRepository, transactionManager);
        Step step = stepBuilderFactory.get("step").<DeviceCommand, DeviceCommand>chunk(1).reader(// 读操作
        flatFileItemReader).processor(// 处理操作
        helloItemProcessor).writer(// 写操作
        flatFileItemWriter).build();
        // 创建Job
        JobBuilderFactory jobBuilderFactory = new JobBuilderFactory(jobRepository);
        Job job = jobBuilderFactory.get("job").start(step).build();
        // 启动任务
        jobLauncher.run(job, new JobParameters());
    } catch (JobExecutionAlreadyRunningException e) {
        e.printStackTrace();
    } catch (JobRestartException e) {
        e.printStackTrace();
    } catch (JobInstanceAlreadyCompleteException e) {
        e.printStackTrace();
    } catch (JobParametersInvalidException e) {
        e.printStackTrace();
    }
}

Example 2 with FlatFileItemWriter

use of org.springframework.batch.item.file.FlatFileItemWriter in project nixmash-blog by mintster.

the class DemoJobConfiguration method demoJobWriter.

@Bean
public ItemWriter<PostDTO> demoJobWriter() {
    FlatFileItemWriter<PostDTO> writer = new FlatFileItemWriter<>();
    writer.setResource(new FileSystemResource("/home/daveburke/web/nixmashspring/posts.csv"));
    DelimitedLineAggregator<PostDTO> delLineAgg = new DelimitedLineAggregator<>();
    delLineAgg.setDelimiter(";");
    BeanWrapperFieldExtractor<PostDTO> fieldExtractor = new BeanWrapperFieldExtractor<>();
    fieldExtractor.setNames(new String[] { "postTitle" });
    delLineAgg.setFieldExtractor(fieldExtractor);
    writer.setLineAggregator(delLineAgg);
    return writer;
}

Example 3 with FlatFileItemWriter

use of org.springframework.batch.item.file.FlatFileItemWriter in project RecordManager2 by moravianlibrary.

the class ExportRecordsJobConfig method exportRecordsWriter.

@Bean(name = "exportRecordsJob:exportRecordsWriter")
@StepScope
public FlatFileItemWriter<String> exportRecordsWriter(@Value("#{jobParameters[" + Constants.JOB_PARAM_OUT_FILE + "]}") String filename) throws Exception {
    FlatFileItemWriter<String> fileWritter = new FlatFileItemWriter<String>();
    fileWritter.setAppendAllowed(false);
    fileWritter.setShouldDeleteIfExists(true);
    fileWritter.setEncoding("UTF-8");
    fileWritter.setLineAggregator(new PassThroughLineAggregator<String>());
    fileWritter.setResource(new FileSystemResource(filename));
    fileWritter.afterPropertiesSet();
    return fileWritter;
}