java jtds连接数据库

public void sqlTest throws SQLException
    {
        try {
            Class.forName("net.sourceforge.jtds.jdbc.Driver");
            Connection con = DriverManager.getConnection("jdbc:jtds:sqlserver://localhost:1433/pubs","sa","sa");            
            Statement st = con.createStatement();            
            ResultSet rs = st.executeQuery("SELECT * FROM table1");
            while(rs.next())
            {
                String a = rs.getString(0);        
                
            }
        } catch (ClassNotFoundException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }    
        
    }