如何使用Spring batch编写空体csv文件

@Configuration
@EnableBatchProcessing
public class BatchConfiguration {

    @Autowired
    private JobBuilderFactory jobBuilderFactory;

    @Autowired
    private StepBuilderFactory stepBuilderFactory;

    @Bean
    public FlatFileItemReader<Entity> reader() {
        FlatFileItemReader<Entity> reader = new FlatFileItemReader<>();
        reader.setResource(new ClassPathResource("data.csv")); // 设置 CSV 文件路径
        reader.setLineMapper(new DefaultLineMapper<Entity>() {{
            setLineTokenizer(new DelimitedLineTokenizer() {{
                setNames(new String[]{"column1", "column2"}); // 设置 CSV 文件的列名
            }});
            setFieldSetMapper(new BeanWrapperFieldSetMapper<Entity>() {{
                setTargetType(Entity.class); // 设置实体类类型
            }});
        }});
        return reader;
    }

    @Bean
    public ItemProcessor<Entity, Entity> processor() {
        return entity -> entity; // 空的 ItemProcessor，不进行任何处理
    }

    @Bean
    public ItemWriter<Entity> writer() {
        return items -> {}; // 空的 ItemWriter，不进行任何写入操作
    }

    @Bean
    public Step step(ItemReader<Entity> reader, ItemProcessor<Entity, Entity> processor, ItemWriter<Entity> writer) {
        return stepBuilderFactory.get("step")
                .<Entity, Entity>chunk(10)
                .reader(reader)
                .processor(processor)
                .writer(writer)
                .build();
    }

    @Bean
    public Job job(Step step) {
        return jobBuilderFactory.get("job")
                .incrementer(new RunIdIncrementer())
                .flow(step)
                .end()
                .build();
    }
}