Question

这是带有插入功能的UserModel.Class

/bin/sh -c /home/myname/Scrivania/capture.sh

这是调用UserModel的UserController.Class 首先是构造函数和所需的@FXML标记

public boolean isInsert(String userNew, String passNew) throws SQLException{
    PreparedStatement preparedStatement=null;
    ResultSet resultSet=null;
    String query = "INSERT INTO employee (username, password) VALUES (?,?)";
    try{
        preparedStatement = connect.prepareStatement(query);
        preparedStatement.setString(1, userNew);
        preparedStatement.setString(2, passNew);
        resultSet = preparedStatement.executeQuery();
        if(resultSet.next()){
            return true;
        }else{
            return false;
        }
    }catch(Exception e){
        return false;
    }finally{
        preparedStatement.close();
        resultSet.close();
    }
}

然后ActionEvent SignUp接受userModel对象并调用上面提到的isInsert函数

UserModel userModel = new UserModel();

@FXML
private Label userLbl2;

@FXML
private TextField UserField;

@FXML
private PasswordField PassField;

以下是生成的错误 -

public void SignUp(ActionEvent event){
    try {
        if(userModel.isInsert(UserField.getText(), PassField.getText())){
            userLbl2.setText("Your account has been created");
        }else{
            userLbl2.setText("Your account has not been created");
        }
    } catch (SQLException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }   
}

Answer 1

最好在控制器类的public class SingleItemView extends Activity { // Declare Variables TextView txtdefinition; TextView txtword; TextView txtexample; ImageView imgflag; String[] definition; String[] word; String[] example; int[] flag; int position; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.singleitemview); // Retrieve data from MainActivity on listview item click Intent i = getIntent(); // Get a single position position = i.getExtras().getInt("position"); // Get the list of definition definition = i.getStringArrayExtra("definition"); // Get the list of word word = i.getStringArrayExtra("word"); // Get the list of example example = i.getStringArrayExtra("example"); // Get the list of flag flag = i.getIntArrayExtra("flag"); // Locate the TextViews in singleitemview.xml txtdefinition = (TextView) findViewById(R.id.definition); txtword = (TextView) findViewById(R.id.word); txtexample = (TextView) findViewById(R.id.example); // Locate the ImageView in singleitemview.xml imgflag = (ImageView) findViewById(R.id.flag); // Load the text into the TextViews followed by the position txtdefinition.setText(definition[position]); txtword.setText(word[position]); txtexample.setText(example[position]); // Load the image into the ImageView followed by the position imgflag.setImageResource(flag[position]); } }方法中创建一个实例

initialize()

我无法使用MVC模式将数据插入JavaFx中的sqlite数据库

1 个答案: