A.加載數(shù)據(jù)庫(kù)驅(qū)動(dòng)程序，數(shù)據(jù)庫(kù)驅(qū)動(dòng)程序通過(guò)CLASSPATH配置
B.通過(guò)DriverManager類取得數(shù)據(jù)庫(kù)連接對(duì)象
C.通過(guò)Connection實(shí)例化PreparedStatement對(duì)象，編寫SQL命令操作數(shù)據(jù)庫(kù)
D.數(shù)據(jù)庫(kù)屬于資源操作，操作完成后進(jìn)行數(shù)據(jù)庫(kù)的關(guān)閉以釋放資源