我是javafx的新手，我在使用鼠标单击登录按钮时使用动作属性，我希望在按下回车键时使用相同的代码，是否有更有效的方法这样做除了复制相同的代码。下面是我的javafx登录控制器中的代码：
@FXML
private void handleButtonAction(ActionEvent event) throws IOException {
System.out.println("Login button selected");
/*
* All Exceptions caught at the GUI not at the other two layers.
*/
try {
/*
* Reference 'bal' to Object BusinessAccessLogin sends parameters to Business Layer
* calling method login() which passes the TextBox parameters usernameBox and
* passwordBox down the layers.
*/
if (bal.login(usernameBox, passwordBox) && (count > 0)) {
/*
* Switch statement so that: user cat 1 -> Reception screen;
* user cat 2 'Nurses' -> triage screen ; & user cat 3 'Doctors -> treatment room
*/
switch(bal.staffAccess(usernameBox, passwordBox)){
case 1:
System.out.println("Staff Category ONE");
homePageParent = FXMLLoader.load(getClass().getResource("/views/FXMLReceptionistPage.fxml"));
homePageScene = new Scene(homePageParent);
appStage = (Stage) ((Node) event.getSource()).getScene().getWindow();
break;
case 2:
System.out.println("Staff Category TWO");
homePageParent = FXMLLoader.load(getClass().getResource("/views/FXMLTriageNurseHomePage.fxml"));
homePageScene = new Scene(homePageParent);
appStage = (Stage) ((Node) event.getSource()).getScene().getWindow();
break;
case 3:
System.out.println("Staff Category THREE");
homePageParent = FXMLLoader.load(getClass().getResource("/views/FXMLDoctorAssessmentPage.fxml"));
homePageScene = new Scene(homePageParent);
appStage = (Stage) ((Node) event.getSource()).getScene().getWindow();
break;
case 4:
System.out.println("Staff Category FOUR");
homePageParent = FXMLLoader.load(getClass().getResource("/views/FXMLHospitalManagerPage.fxml"));
homePageScene = new Scene(homePageParent);
appStage = (Stage) ((Node) event.getSource()).getScene().getWindow();
break;
}
appStage.setScene(homePageScene);
appStage.show();
appStage.centerOnScreen();
appStage.setMaximized(true);
} else {
usernameBox.clear();
passwordBox.clear();
--count;
invalidLabel.setText("Sorry, invalid details");
if (count < 1) {
invalidLabel.setText("You have been locked out of system");
appStage.close();
}
attemptLabel.setText("ATTEMPTS LEFT : " + count);
System.out.println("ATTEMPTS LEFT : " + count);
}
} catch (SQLException e) {
// TODO Auto-generated catch block
System.out.println(e.getMessage());
} catch (Exception e){
System.out.println(e.getMessage());
e.printStackTrace();
}
}
这是我按下回车键时要调用的代码。任何帮助将不胜感激