the 2nd step can not fetch data inserted by 1st step - spring

Question

I configure 2 steps in my job.
The first job is to read from a csv file and writer it to db
below it he code of writer
public class TempTableWriter implements ItemWriter<Module> {
#Autowired
DataSource ds;
#Autowired
ModuleService moduleService;
#Override
public void write(List<? extends Module> items) throws Exception {
// TODO Auto-generated method stub
moduleService.updateModuleList(items);
}
}
#Service
#Transactional(propagation = Propagation.REQUIRED)
public class ModuleService {
#Autowired
ModuleDao moduleDao;
#Transactional(isolation = Isolation.READ_UNCOMMITTED)
public List<Module> getModuleList() {
return moduleDao.getModuleList();
}
public void updateModuleList(List<? extends Module> items) {
items.forEach(item -> {
moduleDao.updateModuleList(p1, p2, p3, p4);
});
}
}
#Repository
public class ModuleDao {
#Autowired
#Qualifier("moduleMapper")
private RowMapper moduleMapper;
#Autowired
private JdbcTemplate jdbctemplate;
public List<Module> getModuleList() {
return jdbctemplate.query("select * from[schema].[t1] ORDER BY p1",
moduleMapper);
}
public void updateModuleList(String requestId, String fileName,
String orcStatus,String context) {
jdbctemplate.update("insert into [schema].[t1]　values(?,?,?,?)", p1, p2,
p3,p4);
}
}
then on the 2nd step when I try the fetch the data which I stored by step1, it always get null, but after the job completing,I could find them really stored in db.
Similarly I tried to use JdbcItemWriter to save the records but I still can not fetch them by the next step.