[실습] ItemReader 구현하기

JSCODE 시니

2026. 04. 04.

✅ 1. ItemReader 구현

@Bean
@StepScope
public JpaPagingItemReader<Orders> ordersReader(@Value("#{jobParameters['targetDate']}") String targetDate){
    log.info("[Reader] 정산 집계 대상 날짜 : {}", targetDate);

    return new JpaPagingItemReaderBuilder<Orders>()
            .name("ordersReader")
            .entityManagerFactory(entityManagerFactory)
            .pageSize(1000)
            .queryString("SELECT o FROM ORDERS o WHERE o.orderDate = :targetDate ORDER BY o.id")
            .parameterValues(Collections.singletonMap("targetDate", LocalDate.parse(targetDate)))
            .build();
}