package?jdbc_imooc;

import?java.sql.Connection;
import?java.sql.DriverManager;
import?java.sql.ResultSet;
import?java.sql.Statement;


public?class?DBUtil?{
????
????private?static?final?String?URL="jdbd:mysql://localhost:3306/imooc";
????private?static?final?String?NAME="root";
????private?static?final?String?PASSWORD="789456";
????
????public?static?void?main(String[]?args)?throws?Exception{
????????//1.加載驅(qū)動程序
????????Class.forName("com.mysql.jdbc.Dirver");
????????//2.獲得數(shù)據(jù)庫的連接
????????Connection?conn=DriverManager.getConnection(URL,NAME,PASSWORD);
????????//3.操縱數(shù)據(jù)庫
????????Statement?stmt?=?conn.createStatement();
????????ResultSet?rs=stmt.executeQuery("select?user_name,age?from?imooc_goddess");
????????
????????while(rs.next()){
????????????System.out.println(rs.getString("user_name")+","+rs.getInt("age"));
????????}
????}

}

代碼就完全是按照老師的敲的，環(huán)境變量也加載了啊 可總是拋異常

Exception in thread "main" java.lang.ClassNotFoundException: com.mysql.jdbc.Dirver
?? ?at java.net.URLClassLoader.findClass(Unknown Source)
?? ?at java.lang.ClassLoader.loadClass(Unknown Source)
?? ?at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
?? ?at java.lang.ClassLoader.loadClass(Unknown Source)
?? ?at java.lang.Class.forName0(Native Method)
?? ?at java.lang.Class.forName(Unknown Source)
?? ?at jdbc_imooc.DBUtil.main(DBUtil.java:17)