public class DAO {
//private static DAO dao=new DAO();
public DAO(){
try {
//加载驱动
Class.forName("net.sourceforge.jtds.jdbc.Driver"); //加载一个创建的驱动
} catch (ClassNotFoundException e) {
JOptionPane.showMessageDialog(null,"数据库驱动加载失败!"+e.getMessage());
}
}
//建立数据库链接
public static Connection getConn(){
Connection conn=null;
try {
String url="jdbc:jtds:sqlserver://localhost:1433/db_MySQLserver";
//String url1="jdbc:jtds:sqlserver://localhost:1433//db_MySQLserver"; //;databasename=db_MySQLserver";
String username="Administrator";
String password="";
conn=DriverManager.getConnection(url,username,password);
System.out.println(conn);
return conn;
} catch (SQLException e) {
e.printStackTrace();
JOptionPane.showMessageDialog(null,"数据库驱动加载失败!"+e.getMessage());
return null;
}
}
public static void main(String[] args) {
DAO.getConn();
}
}
哪位指导下