我的javafx项目不会从数据库中读取数据

Question

所以我在intellij中创建了一个数据库表，我创建了一个javafx项目，它连接到我的服务器（localhost） 现在我在这里遇到错误

String query = "SELECT * FROM IntellijDB.dbo.Employee WHERE username = ? and passcode = ?";

它说我无法访问该表

这是方法

public boolean isLogin(String user,String pass) throws SQLException
{
    PreparedStatement preparedStatement = null ;
    ResultSet resultSet = null;
    String query = "SELECT * FROM IntellijDB.dbo.Employee WHERE username = ? and passcode = ?";
    try
    {
        preparedStatement = connection.prepareStatement(query);
        preparedStatement.setString(1,user);
        preparedStatement.setString(2,pass);

        resultSet = preparedStatement.executeQuery();
        if (resultSet.next())
        {
            return true;
        }
        else
        {
            return false;
        }
    }
    catch (Exception e)
    {
        return false;
        //TODO: handle exception
    }
    finally {
        preparedStatement.close();
        resultSet.close();
    }
}

和其他错误

if (loginModel.isLogin(userAction.getText(), passAction.getText()))

这条线也是

resultSet.close();

我想他们是相关的，我不知道如何解决这个问题 这是其他代码

@FXML
public void Login(ActionEvent event) {
    try {


        if (loginModel.isLogin(userAction.getText(), passAction.getText())) {
            isConnected.setText("Username & password is correct");
        }
        else
        {
            isConnected.setText("Check your username or password");
        }
    } catch (SQLException e)
    {
        isConnected.setText("Check your username or password");
        //TODO Auto-generated catch block
        e.printStackTrace();
    }
}