java连接mysql数据库,该如何解决

try
            {
                //Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
                Class.forName("com.mysql.jdbc.Driver");
            }
            catch(ClassNotFoundException e2){}
            try
            {
                //Connection con = DriverManager.getConnection("jdbc:odbc:mail");
                Connection con = DriverManager.getConnection("jdbc:mysql://208.81.166.169:3306/hythzxSQL","hythzxSQL","727799796");
                Statement stmt = con.createStatement();
                String sql = "SELECT user,password  FROM log";
                ResultSet rs = stmt.executeQuery(sql);
                while (rs.next())
                {
                name=rs.getString("user");
                password=rs.getString("password");
                boolean name_password1=tf1.getText().equals(name);
                boolean name_password2=tf2.getText().equals(password);
                if(name_password1==true &&name_password2==true)
                {
                    System.out.println("登录成功！");
                
                }
                else
                {
                    System.out.println("用户名或密码错误！");
                }
                }
                rs.close(); 
                stmt.close(); 
                con.close();     
                
            }
            catch(Exception e3){}