我做了一个mainEntredController,其中包含一个带有两个标签的TabPane(HomeController)和(PatientController),MainEntred Controle这两个标签之间的参数通道但是我有liitls issu,标签donet重新组合Parent(MainEntredController)或彼此。它在这条线上回复了一个错误 *** labelpatient.setText(mainec.LoadtxtFromlabelhometabhome()); ****** 我们的想法是从第一个标签中获取文本,以便在第二个标签中的标签中显示它
听取我的代码 第一个是MainEntred Class the Container
public class MainEntredController {
@FXML MenuItem closemi;
@FXML HomeController homecontroller;
@FXML PatientController patientcontroller;
public void initialize(URL location, ResourceBundle resources) {
System.out.println("Application Started");
homecontroller.intit(this);
patientcontroller.init(this);
}
public void ClickMenuItemClose(){
System.exit(0);
}
public String LoadtxtFromlabelhometabhome() {
// System.out.println(homecontroller.labelhome.getText());
return homecontroller.labelhome.getText();
}
public void setTabpatientlabel(String text) {
//patientcontroller.labelpatient.setText(text);
}
}
第二个是第一个选项卡HomeController
public class HomeController {
public MainEntredController mainec;
@FXML public Label labelhome;
@FXML private TextField tfhome;
@FXML private Button savehome;
@FXML private Button sendhome;
//public HomeController(){}
public void btnSaveHomeClicked(ActionEvent event){
System.out.println("le boutton save home est cliqué");
labelhome.setText(tfhome.getText());
}
public void btnSendHomeClicked(ActionEvent event){
System.out.println("le boutton send home est cliqué");
// send data to tab patient
mainec.setTabpatientlabel(labelhome.getText());
}
public void intit(MainEntredController mainEntredController) {
mainec = mainEntredController;
}
}
第三个是第二个选项卡PatientController
public class PatientController {
public MainEntredController mainec;
@FXML public Label labelpatient;
@FXML private TextField tfpatient;
@FXML private Button savepatient;
@FXML private Button loadpatient;
public void btnSavePatientClicked(ActionEvent event){
System.out.println("le boutton save Patient est cliqué");
labelpatient.setText(tfpatient.getText());
}
public void btnLoadPatientClicked(ActionEvent event){
System.out.println("le boutton Load patient est cliqué");
labelpatient.setText(mainec.LoadtxtFromlabelhometabhome());
}
public void init(MainEntredController mainEntredController) {
mainec = mainEntredController;
}
}
MainEntred的FXML文件
<fx:include id="homecontroller" source="home.fxml" />
<fx:include id="patientcontroller" source="patient.fxml" />
我猜这两个人都在喋喋不休地提出任何建议如何解决它请 我不知道为什么我在行声明的情况下有java.lang.NullPointerException,因为他无法获得源代码(未知来源)
答案 0 :(得分:0)
如果我理解正确,那么你想在控制器之间进行通信。好吧,这可以很容易。
在你的主要类型的东西喜欢这个:
FXMLLoader loader = new FXMLLoader(Main.class.getResource("your.fxml"));
Parent node = loader.load(); // this loads view
YourController instance = loader.getController();
some_class.initialize(instance);
答案 1 :(得分:0)
我发现错了。问题是,在两个Tabs的MainController中的声明中,我们将fx:id声明放在fxml文件中 并添加单词&#34; Controller&#34;
像这样 @FXML private HomeController homeController;
@FXML private PatientController patientController;
fx:id =&#34; home&#34; 第二个包括fx:id =&#34;患者&#34;