exception in thread "main" java. lang. Error: Unresolved compilation problem
at utils.Jdbcutilsbydruid.getconnection (Dbcutilsbydruid. java: 38)
at Dao. Basicdao.queryscalar(Basicdao java: 66)
atDao.cardatadao.queryseats(cardatadao java: 56)
at service. tp Sold(tp. java: 24)
at main Interface. run (Interface java: 32) at main Interface. main (Interface java: 12)