A.初始化名稱查找上下文 B.通過名稱查找DataSource對(duì)象 C.通過DataSource取得一個(gè)數(shù)據(jù)庫連接 D.發(fā)送數(shù)據(jù)
A.加載數(shù)據(jù)庫驅(qū)動(dòng)程序,數(shù)據(jù)庫驅(qū)動(dòng)程序通過CLASSPATH配置 B.通過DriverManager類取得數(shù)據(jù)庫連接對(duì)象 C.通過Connection實(shí)例化PreparedStatement對(duì)象,編寫SQL命令操作數(shù)據(jù)庫 D.數(shù)據(jù)庫屬于資源操作,操作完成后進(jìn)行數(shù)據(jù)庫的關(guān)閉以釋放資源
A.ServletContextListener B.HttpSessionListener C.ServletRequestListener D.PostListener