java.lang.ClassNotFoundException

package java5;

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

public class DBUtil {
static final String URL="jbdc:mysql://localhost:3306/jdbc";
static final String USER="root";
static final String PASSWORD="woaini9527";
public static void main(String[] args) throws SQLException, ClassNotFoundException {
//1.加载驱动程序

Class.forName("com.mysql.jdbc.Driver");

//2.获得数据库的连接
Connection conn;

conn = DriverManager.getConnection(URL, USER, PASSWORD);

Statement stmt = conn.createStatement();

ResultSet rs = stmt.executeQuery("select user_name,age from goddess ");

while(rs.next()){

System.out.println(rs.getString("user_name")+rs.getInt("age"));
}

}

}

Exception in thread "main" java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
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 java5.DBUtil.main(DBUtil.java:16)

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