[ItemReader](https://github.com/kimtaejun97/TIL/tree/master/Spring/SpringBatch#-itemreader-%EA%B5%AC%ED%98%84%EC%B2%B4) - [x] FlatFileItemReader - [x] XML StaxEventItemReader - [x] JsonItemReader - [x] JdbcCursorItemReader, JpaCursorItemReader - [x] JdbcPagingItemReader, JpaPagingItemReader - [x] ItemReaderAdapter
