了JavaFx。登录页面链接到下一页

Question

我真的需要帮助。我是gui和javaFx的新手。我一直在做这个编码，但不知道如何链接它。我的两个代码都正常工作。这个想法是，当点击登录按钮时，将出现源代码2。但现在，我在不同的类上做源代码。请帮我。感谢

我的源代码1：

import java.awt.event.ActionListener;
import javafx.application.Application;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.geometry.HPos;
import javafx.geometry.Insets;
import javafx.geometry.Pos;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.scene.control.TextField;
import javafx.scene.layout.ColumnConstraints;
import javafx.scene.layout.GridPane;
import javafx.scene.layout.HBox;
import javafx.scene.layout.Pane;
import javafx.scene.layout.Priority;
import javafx.scene.layout.StackPane;
import javafx.scene.layout.VBox;
import javafx.scene.text.Font;
import javafx.scene.text.FontWeight;
import javafx.scene.text.Text;
import javafx.stage.Stage;

/**
 *
 * @author Win10
 */
public class ProjectFlower extends Application {

    private static final double WindowWidth  = 600;
    private static final double WindowHeight = 400;
    Button B1;

    @Override
    public void start(Stage primaryStage) throws Exception{
        primaryStage.setTitle("Flowerstyle Net");

        GridPane GP = new GridPane();
        GP.setAlignment(Pos.CENTER);
        GP.setHgap(10);
        GP.setVgap(10);
        GP.setPadding(new Insets(10,10,10,10));
        GP.setPrefSize(WindowWidth,WindowHeight);
        GP.setMinSize(WindowWidth,WindowHeight);

        ColumnConstraints left = new ColumnConstraints();
        left.setHalignment(HPos.RIGHT);
        left.setHgrow(Priority.NEVER);

        ColumnConstraints right = new ColumnConstraints();
        right.setHgrow(Priority.ALWAYS);

        GP.getColumnConstraints().addAll(left,right);

        Text text = new Text("\t\t\t\t WELCOME TO FLOWERSTYLE NET" + "\n\n\t\t\t\t\t " + "ENJOY YOUR SHOPPING!! :)");
        text.setFont(Font.font("SHOWCARD GOTHIC", FontWeight.NORMAL,20));
        GP.add(text,0,0,2,1);

        GridPane.setHalignment(text,HPos.LEFT);

        Label L1 = new Label("User Name");
        GP.add(L1,0,1);

        Label L2 = new Label ("Password");
        GP.add(L2,0,2);

        TextField TF1 = new TextField();
        GP.add(TF1,1,1);

        TextField TF2 = new TextField();
        GP.add(TF2,1,2);

        Button B1 = new Button ("Sign in");
        GP.add(B1,1,3);
        GridPane.setHalignment(B1,HPos.CENTER);

        GP.setStyle("-fx-background-color : grey");

        Scene scene = new Scene(GP,WindowWidth,WindowHeight);
        primaryStage.setScene(scene);
        primaryStage.show();
    }
    public static void main(String[] args) {
        launch(args);
    }

}

源代码2：

import java.awt.TextArea;
import javafx.application.Application;
import javafx.geometry.Insets;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.ComboBox;
import javafx.scene.control.Label;
import javafx.scene.control.ListView;
import javafx.scene.control.TextField;
import javafx.scene.layout.GridPane;
import javafx.stage.Stage;

public class CusInfo extends Application {

    public static void main(String[] args) {
        launch(args);
    }

    //final Button button = new Button("Proceed");
    //final Label notification = new Label ();
    final TextField TF = new TextField("");
    final TextArea TA = new TextArea("");

    String address = " ";

    @Override
    public void start(Stage stage){
        stage.setTitle("Customer Information");
        Scene scene1 = new Scene(new Group(),450,250);

        final ListView LV = new ListView();
        LV.getItems().addAll(
        "ROSE",
        "TULIPS",
        "LILY",
        "CARNATION",
        "LAVENDER",
        "ORCHID",
        "SUNFLOWER",
        "LILAC",
        "HYACINTH",
        "DAISIES",
        "FORGET ME NOT",
        "PRIMROSE",
        "CAMELLIAS",
        "CHERRY BLOSSOM",
        "BIRD OF PARADISE"
        );

        final ComboBox CB1 = new ComboBox();
        CB1.getItems().addAll(
        "WHITE",
        "BLUE",
        "RED",
        "PURPLE",
        "BLACK",
        "YELLOW",
        "ORANGE"
        );

        final ComboBox CB2 = new ComboBox();
        CB2.getItems().addAll(
        "ENGLAND",
        "AMSTERDAM",
        "MALAYSIA",
        "ICELAND",
        "AUSTRALIA"
        );

        CB2.setValue("MALAYSIA");

        GridPane pane = new GridPane();
        pane.setVgap(4);
        pane.setHgap(10);
        pane.setPadding(new Insets(5,5,5,5));

           Label name = new Label ("Customer Name:");
           pane.add(name,0,0);
           TextField nameField = new TextField();
           pane.add(nameField,1 , 0);

           Label OrderID = new Label ("Order ID:");
           pane.add(OrderID, 0, 1);
           TextField OrderField = new TextField();
           pane.add(OrderField,1 ,1 );

           Label date = new Label ("Date:"); 
           pane.add(date,0,2);
           TextField dateField = new TextField();
           pane.add(dateField,1 , 2);

           Label phoneNum = new Label ("Phone Number:");
           pane.add(phoneNum,0,3);
           TextField phoneField = new TextField();
           pane.add(phoneField,1 , 3);

           pane.add (new Label ("Type of Flower:"),0,4);
           pane.add(LV,1,4);
           //TextField flowerField = new TextField();
           //pane.add(flowerField,1 , 4);

           pane.add( new Label ("Flower Colour:"),0,5);
           pane.add(CB1,1,5);
           //TextField colourField = new TextField();
           //pane.add(colourField,1 , 5);

           pane.add( new Label ("Origin:"),0,6);
           pane.add(CB2,1,6);
           //TextField originField = new TextField();
           //pane.add(colourField,1 , 6);

           Label quantity = new Label ("Quantity:");
           pane.add(quantity,0,7);
           TextField quantityField = new TextField();
           pane.add(quantityField,1 , 7);

           Label totalPrice = new Label ("Total Price:");
           pane.add(totalPrice,0,8); 
           TextField priceField = new TextField();
           pane.add(priceField,1,8);

           Label address = new Label ("Customer Address:");
           pane.add(address,0,9);
           TextField addressField = new TextField();
           pane.add(addressField,1 , 9);

           Button button = new Button("Proceed");
           pane.add(button, 1, 10);

           Group root = (Group)scene1.getRoot();
           root.getChildren().add(pane);
           stage.setScene(scene1);
           stage.show();

Answer 1

您需要做的是切换场景。

1）从第二个类中获取所有代码并将其转换为具有返回下一个场景的方法的类。

import java.awt.TextArea;
import javafx.application.Application;
import javafx.geometry.Insets;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.ComboBox;
import javafx.scene.control.Label;
import javafx.scene.control.ListView;
import javafx.scene.control.TextField;
import javafx.scene.layout.GridPane;
import javafx.stage.Stage;

public class CusInfo
{
    //final Button button = new Button("Proceed");
    //final Label notification = new Label ();
    final TextField TF = new TextField("");
    final TextArea TA = new TextArea("");

    String address = " ";

    public Scene getScene()
    {
        Scene scene1 = new Scene(new Group(),450,250);

        final ListView LV = new ListView();
        LV.getItems().addAll(
        "ROSE",
        "TULIPS",
        "LILY",
        "CARNATION",
        "LAVENDER",
        "ORCHID",
        "SUNFLOWER",
        "LILAC",
        "HYACINTH",
        "DAISIES",
        "FORGET ME NOT",
        "PRIMROSE",
        "CAMELLIAS",
        "CHERRY BLOSSOM",
        "BIRD OF PARADISE"
        );

        final ComboBox CB1 = new ComboBox();
        CB1.getItems().addAll(
        "WHITE",
        "BLUE",
        "RED",
        "PURPLE",
        "BLACK",
        "YELLOW",
        "ORANGE"
        );

        final ComboBox CB2 = new ComboBox();
        CB2.getItems().addAll(
        "ENGLAND",
        "AMSTERDAM",
        "MALAYSIA",
        "ICELAND",
        "AUSTRALIA"
        );

        CB2.setValue("MALAYSIA");

        GridPane pane = new GridPane();
        pane.setVgap(4);
        pane.setHgap(10);
        pane.setPadding(new Insets(5,5,5,5));

           Label name = new Label ("Customer Name:");
           pane.add(name,0,0);
           TextField nameField = new TextField();
           pane.add(nameField,1 , 0);

           Label OrderID = new Label ("Order ID:");
           pane.add(OrderID, 0, 1);
           TextField OrderField = new TextField();
           pane.add(OrderField,1 ,1 );

           Label date = new Label ("Date:"); 
           pane.add(date,0,2);
           TextField dateField = new TextField();
           pane.add(dateField,1 , 2);

           Label phoneNum = new Label ("Phone Number:");
           pane.add(phoneNum,0,3);
           TextField phoneField = new TextField();
           pane.add(phoneField,1 , 3);

           pane.add (new Label ("Type of Flower:"),0,4);
           pane.add(LV,1,4);
           //TextField flowerField = new TextField();
           //pane.add(flowerField,1 , 4);

           pane.add( new Label ("Flower Colour:"),0,5);
           pane.add(CB1,1,5);
           //TextField colourField = new TextField();
           //pane.add(colourField,1 , 5);

           pane.add( new Label ("Origin:"),0,6);
           pane.add(CB2,1,6);
           //TextField originField = new TextField();
           //pane.add(colourField,1 , 6);

           Label quantity = new Label ("Quantity:");
           pane.add(quantity,0,7);
           TextField quantityField = new TextField();
           pane.add(quantityField,1 , 7);

           Label totalPrice = new Label ("Total Price:");
           pane.add(totalPrice,0,8); 
           TextField priceField = new TextField();
           pane.add(priceField,1,8);

           Label address = new Label ("Customer Address:");
           pane.add(address,0,9);
           TextField addressField = new TextField();
           pane.add(addressField,1 , 9);

           Button button = new Button("Proceed");
           pane.add(button, 1, 10);

           Group root = (Group)scene1.getRoot();
           root.getChildren().add(pane);

           return scene1;
        }
    }

2）在第一个类Application中，您需要在登录按钮上设置一个事件处理程序。

// rest of code...

Button B1 = new Button ("Sign in");
        GP.add(B1,1,3);
        GridPane.setHalignment(B1,HPos.CENTER);

B1.setOnAction(new EventHandler<ActionEvent>() {
        @Override
        public void handle(ActionEvent actionEvent) {

            // change scenes here
            changeScenes();
        }
    });

// rest of code...

3）在第一节中保留对primaryStage的引用：

private Stage primaryStage;

@Override
public void start(Stage primaryStage) throws Exception{

    this.primaryStage = primaryStage;
    primaryStage.setTitle("Flowerstyle Net");

   // rest of code...
}

4）在第一个类

中创建changeScenes方法

private void changeScenes()
{
    CusInfo ci = new CusInfo();
    Scene scene = ci.getScene();

    // set new title
    primaryStage.setTitle("Customer Information");

    // change the scene on the stage
    primaryStage.setScene(scene);
}

如果您进行了所有更改，那么您应该得到所需的结果。

祝你好运：）