如何创建Javafx保存，从文本文件中读取信息以及让用户编辑其信息

Question

如何创建JavaFx RegisterGUI保存用户信息（用户名，密码，名称，电子邮件，电话号码，地址）并加载到UserProfile GUI中，从而允许用户在使用用户名和密码登录后编辑其个人资料信息？希望你们能帮助我解决问题。

UserGUI：

<?xml version="1.0" encoding="UTF-8"?>

<?import javafx.scene.control.Button?>
<?import javafx.scene.control.TextArea?>
<?import javafx.scene.control.TextField?>
<?import javafx.scene.image.ImageView?>
<?import javafx.scene.layout.ColumnConstraints?>
<?import javafx.scene.layout.GridPane?>
<?import javafx.scene.layout.RowConstraints?>
<?import javafx.scene.text.Text?>

<GridPane maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="400.0" prefWidth="600.0" xmlns="http://javafx.com/javafx/10.0.1" xmlns:fx="http://javafx.com/fxml/1" fx:controller="application.GUIButton">
  <columnConstraints>
      <ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="100.0" />
      <ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="100.0" />
      <ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="100.0" />
      <ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="100.0" />
    <ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="100.0" />
      <ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="100.0" />
  </columnConstraints>
  <rowConstraints>
      <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
      <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
      <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
      <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
      <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
      <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
      <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
      <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
    <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
    <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
    <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
  </rowConstraints>
   <children>
      <Button id="btnEdit" fx:id="btnEdit" mnemonicParsing="false" onAction="#setOnAction" text="Edit Profile" GridPane.columnIndex="1" GridPane.rowIndex="9" />
      <Button id="btnSave" fx:id="btnSave" mnemonicParsing="false" onAction="#setOnAction" prefHeight="26.0" prefWidth="73.0" text="Save" GridPane.columnIndex="2" GridPane.rowIndex="9" />
      <Button id="btnCancel" fx:id="btnCancel" mnemonicParsing="false" onAction="#setOnAction" prefHeight="26.0" prefWidth="66.0" text="Cancel" GridPane.columnIndex="3" GridPane.rowIndex="9" />
      <Text id="txtName" strokeType="OUTSIDE" strokeWidth="0.0" text="Name" GridPane.columnIndex="1" GridPane.rowIndex="1" />
      <Text id="txtPhoneNumber" strokeType="OUTSIDE" strokeWidth="0.0" text="Phone Number" GridPane.columnIndex="1" GridPane.rowIndex="3" />
      <Text id="txtEmail" strokeType="OUTSIDE" strokeWidth="0.0" text="Email" GridPane.columnIndex="1" GridPane.rowIndex="5" />
      <Text id="txtAddress" strokeType="OUTSIDE" strokeWidth="0.0" text="Address" GridPane.columnIndex="1" GridPane.rowIndex="7" />
      <TextField id="txtfName" onAction="#setOnAction" prefHeight="26.0" prefWidth="203.0" GridPane.columnIndex="2" GridPane.rowIndex="1" />
      <TextField id="txtfPhoneNumber" onAction="#setOnAction" GridPane.columnIndex="2" GridPane.rowIndex="3" />
      <TextField id="txtfEmail" onAction="#setOnAction" GridPane.columnIndex="2" GridPane.rowIndex="5" />
      <TextArea id="txtaAddress" onDragDetected="#setOnAction" prefHeight="200.0" prefWidth="200.0" GridPane.columnIndex="2" GridPane.rowIndex="7" />
      <ImageView id="imgUser" fitHeight="150.0" fitWidth="200.0" pickOnBounds="true" preserveRatio="true" GridPane.columnIndex="4" GridPane.rowIndex="2" />
   </children>
</GridPane>

RegisterGUI：

    <?xml version="1.0" encoding="UTF-8"?>

<?import javafx.scene.control.Button?>
<?import javafx.scene.control.TextArea?>
<?import javafx.scene.control.TextField?>
<?import javafx.scene.layout.ColumnConstraints?>
<?import javafx.scene.layout.GridPane?>
<?import javafx.scene.layout.RowConstraints?>
<?import javafx.scene.text.Text?>

<GridPane id="RegisterGUI" maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="400.0" prefWidth="600.0" xmlns:fx="http://javafx.com/fxml/1" xmlns="http://javafx.com/javafx/10.0.1" fx:controller="application.RegisterButton">
  <columnConstraints>
      <ColumnConstraints hgrow="SOMETIMES" maxWidth="193.5999755859375" minWidth="10.0" prefWidth="151.20003662109374" />
      <ColumnConstraints hgrow="SOMETIMES" maxWidth="193.5999755859375" minWidth="10.0" prefWidth="151.20003662109374" />
      <ColumnConstraints hgrow="SOMETIMES" maxWidth="447.9999633789063" minWidth="10.0" prefWidth="447.9999633789063" />
  </columnConstraints>
  <rowConstraints>
    <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
    <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
    <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
      <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
      <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
      <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
      <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
      <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
      <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
      <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
  </rowConstraints>
   <children>
      <Text strokeType="OUTSIDE" strokeWidth="0.0" text="Email" GridPane.columnIndex="1" GridPane.rowIndex="1" />
      <Text strokeType="OUTSIDE" strokeWidth="0.0" text="Username" GridPane.columnIndex="1" GridPane.rowIndex="2" />
      <Text strokeType="OUTSIDE" strokeWidth="0.0" text="Name" GridPane.columnIndex="1" GridPane.rowIndex="4" />
      <Text strokeType="OUTSIDE" strokeWidth="0.0" text="IC Number" GridPane.columnIndex="1" GridPane.rowIndex="5" />
      <Text strokeType="OUTSIDE" strokeWidth="0.0" text="Phone Number" GridPane.columnIndex="1" GridPane.rowIndex="6" />
      <Text strokeType="OUTSIDE" strokeWidth="0.0" text="Address" GridPane.columnIndex="1" GridPane.rowIndex="7" />
      <TextField id="txtfEmail" fx:id="txtfEmail" GridPane.columnIndex="2" GridPane.rowIndex="1" />
      <TextField id="txtfUsername" fx:id="txtfUsername" GridPane.columnIndex="2" GridPane.rowIndex="2" />
      <TextField id="txtfName" fx:id="txtfName" GridPane.columnIndex="2" GridPane.rowIndex="4" />
      <TextField id="txtfIC" fx:id="txtfIC" GridPane.columnIndex="2" GridPane.rowIndex="5" />
      <TextField id="txtfPhone" fx:id="txtfPhone" GridPane.columnIndex="2" GridPane.rowIndex="6" />
      <TextArea id="txtaAddress" fx:id="txtaAddress" prefHeight="200.0" prefWidth="200.0" GridPane.columnIndex="2" GridPane.rowIndex="7" />
      <Button id="btnRegister" fx:id="btnRegister" mnemonicParsing="false" onAction="#OnRegister" text="Register" GridPane.columnIndex="2" GridPane.rowIndex="9" />
      <Button id="btnExit" fx:id="btnExit" mnemonicParsing="false" onAction="#OnExit" prefHeight="26.0" prefWidth="56.0" text="Exit" GridPane.columnIndex="1" GridPane.rowIndex="9" />
      <Text strokeType="OUTSIDE" strokeWidth="0.0" text="Password" GridPane.columnIndex="1" GridPane.rowIndex="3" />
      <TextField id="txtfPassword" fx:id="txtfPassword" GridPane.columnIndex="2" GridPane.rowIndex="3" />
   </children>
</GridPane>

Answer 1

我建议您使用SQLite数据库而不是文本文件。

但是使用文本文件创建一个小型数据库是一个好习惯。

为此，您需要创建一个数据库的.txt文件 在文本文件中，您可以通过多种方式存储信息，例如 名称，电子邮件，密码，年龄，性别

• Jack，jack@gmail.com，mypassword123，18，男性，
• Adam，adam101@gmail.com，adampas1001，21，female，

这样，您可以用逗号分隔数据 现在，您必须逐行阅读每一行

import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.ArrayList;


public class TextFileReader
{   
//  Location / count / List
    private String text_File_Location; //location
    private long count;

    public TextFileReader(String url)
    {   
        this.text_File_Location = url;
        lineList = new ArrayList<String>();
        countLines();
        initFontCodeList();


    }


    //Counts number of lines mean number of profiles
    private void countLines()
    {
        try {
            count = Files.lines(Paths.get(text_File_Location)).count();
        } catch (IOException e1) { System.err.println("TextFileReader : Count Failed" +e1); }
    }

    //init List
    private void initFontCodeList() {
        try 
        {

             Path path = Paths.get(text_File_Location);

               for (int i = 0; i < count; i++) 
               {
                    String line = Files.readAllLines(path).get(i);
                                        //Acording to format Name, Email, Password, Age, Gender
                String[] profile = line.split(",");
                String name = profile[0];
                String email = profile[1];
                String Password = profile[2];
                String age = profile[4];
                String gender =  profile[5];


               }


        } 
        catch (IOException e) {System.err.println("TextFileReader : ReadFile Failed");}
    }



}

现在只需使用几种逻辑来检查在GUI上输入的信息是否等于文本文件信息

删除个人资料只是删除该行

修改个人资料只是删除该行并创建另一行

这是所有基本的入门方法

Answer 2

确定为您构建一个小的登录，注册和编辑应用，您可以根据自己的喜好对其进行修改

因此，我们有4个类文件。和2个FXML文件和Textfile

Luncher.java

    package loginApplication;

import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.stage.Stage;

public class Luncher extends Application{

    public static Stage stage;

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

        stage = primaryStage;
        Parent root = FXMLLoader.load(getClass().getResource("Login.fxml"));
        Scene scene = new Scene(root);
        primaryStage.setScene(scene);
        primaryStage.show();

    }


    public static void main(String[] args) {

        launch(args);
    }
}

LoginController.java

package loginApplication;

import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;

import javafx.event.ActionEvent;
import javafx.fxml.FXML;
import javafx.fxml.FXMLLoader;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.scene.control.Alert;
import javafx.scene.control.Alert.AlertType;
import javafx.scene.control.Label;
import javafx.scene.control.PasswordField;
import javafx.scene.control.TextField;

public class LoginController 
{

    @FXML
    private TextField email_textfield;

    @FXML
    private PasswordField password_textfield;


    @FXML
    private Label error_lab;



    @FXML
    public void signupButton(ActionEvent event) {
        openWindow();
    }

    @FXML
    public void loginButton(ActionEvent event) throws IOException 
    {   


        //Path to text file
        Path path = Paths.get("TextFiles/data.txt");

        //Counts number of line in text file
        long count = Files.lines(path).count();

        /// read each line
           for (int i = 0; i < count; i++) 
           {
                String line = Files.readAllLines(path).get(i);
                if(!line.trim().equals("")) 
                {

                    //According to format Name, Email, Password, Age, Gender
                    String[] profile = line.split(",");

                    String name = profile[0];
                    String email = profile[1];
                    String password = profile[2];
                    String age = profile[3];
                    String gender =  profile[4];
                    String contact =  profile[5];

                    //Email Matched!
                    if(email.trim().equals(email_textfield.getText()))
                    { //Note trim() method remove space from front and behind of string if there is any
                        //Now checking if password match
                        if(password.trim().equals(password_textfield.getText())) 
                        {

                            Alert msg = new Alert(AlertType.CONFIRMATION);
                            msg.setTitle(email_textfield.getText());
                            msg.setContentText("Email and password matched");
                            msg.showAndWait();

                            //Store values
                            Storage.setName(name);
                            Storage.setEmail(email);
                            Storage.setAge(age);
                            Storage.setGender(gender);
                            Storage.setContact(contact);
                            Storage.setPassword(password);

                            //open login window
                            openWindow();

                            break; //Email match and pass match, Close loop

                        }


                    } 




               }   



            }

           if(Storage.getEmail() == null) {
                System.out.println("No such email");

                Alert msg = new Alert(AlertType.ERROR);
                msg.setTitle(email_textfield.getText());
                msg.setContentText("No such Email : " +email_textfield.getText());
                msg.showAndWait();

               } else if (Storage.getPassword() == null){
                    System.out.println("No such email");

                    Alert msg = new Alert(AlertType.ERROR);
                    msg.setTitle(email_textfield.getText());
                    msg.setContentText("Wrong password");
                    msg.showAndWait();
               }

    }

    private void openWindow() 
    {
        System.out.println("Profile open");

        try {
            Parent root = FXMLLoader.load(getClass().getResource("Profile.fxml"));
            Luncher.stage.setScene(new Scene(root));



        } catch (IOException e) {
            e.printStackTrace();
        }


    }
}

ProfileController.java

package loginApplication;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.net.URL;
import java.util.ResourceBundle;
import javafx.event.ActionEvent;
import javafx.fxml.FXML;
import javafx.fxml.Initializable;
import javafx.scene.control.Button;
import javafx.scene.control.PasswordField;
import javafx.scene.control.TextField;

public class ProfileController implements Initializable{



    @FXML
    private TextField name;

    @FXML
    private TextField email;

    @FXML
    private TextField gender;

    @FXML
    private TextField contact;

    @FXML
    private TextField age;

    @FXML
    private PasswordField password;


    @Override
    public void initialize(URL location, ResourceBundle resources) {
        name.setText(Storage.getName());
        age.setText(Storage.getAge());
        gender.setText(Storage.getGender());
        email.setText(Storage.getEmail());
        contact.setText(Storage.getContact());
        password.setText(Storage.getPassword());


        //Open windows for sign up if nall else do this
        if(Storage.getEmail() !=null)
        {
            //Disable everything
            name.setDisable(true);
            age.setDisable(true);
            gender.setDisable(true);
            email.setDisable(true);
            contact.setDisable(true);
            password.setDisable(true);
        } 




    }

    @FXML
    private Button save;

    @FXML
    private Button edit;



    @FXML
    void editButton(ActionEvent event) 
    {
        System.out.println("edit button");
        //Active everything
        name.setDisable(false);
        age.setDisable(false);
        gender.setDisable(false);
        email.setDisable(false);
        contact.setDisable(false);
        password.setDisable(false);
    }

    @FXML
    void saveButton(ActionEvent event) {
        //Disable everything
        name.setDisable(true);
        age.setDisable(true);
        gender.setDisable(true);
        email.setDisable(true);
        contact.setDisable(true);
        password.setDisable(true);

        removeLine();
        addLine();
    }

    private void addLine() {
        String line = name.getText() +"," +email.getText() +"," +password.getText() +"," +age.getText() +"," +gender.getText()+"," +contact.getText();

         FileWriter file_writer;
        try {
            file_writer = new FileWriter("TextFiles/data.txt",true);
            BufferedWriter buffered_Writer = new BufferedWriter(file_writer);
            buffered_Writer.write(line);
            buffered_Writer.flush();
            buffered_Writer.close();

        } catch (IOException e) {
            System.out.println("Add line failed!!" +e);
        }

    }

    private void removeLine() {
         try
            {
                    BufferedReader file = new BufferedReader(new FileReader("TextFiles/data.txt"));
                    String line;
                    String input = "";
                    while ((line = file.readLine()) != null) 
                    {
                        //System.out.println(line);
                        if (line.contains(Storage.getEmail()))
                        {
                            line = "";
                            System.out.println("Line deleted.");
                        }
                        input += line + '\n';
                    }
                    FileOutputStream File = new FileOutputStream("TextFiles/data.txt");
                    File.write(input.getBytes());
                    file.close();
                    File.close();

            }
            catch (Exception e)
            {
                    System.out.println("Problem reading file.");
            }



    }

}

Storage.java

package loginApplication;

public class Storage {

    private static String Name;
    private static String Age;
    private static String Gender;
    private static String Email;
    private static String Contact;
    private static String password;

    // This is how u should do it but u can also make field public and use them directly 
    // for example -> 'Public static String Name' then use it as 'Storage.name'

    public static String getName() {
        return Name;
    }
    public static void setName(String name) {
        Name = name;
    }
    public static String getAge() {
        return Age;
    }
    public static void setAge(String age) {
        Age = age;
    }
    public static String getGender() {
        return Gender;
    }
    public static void setGender(String gender) {
        Gender = gender;
    }
    public static String getEmail() {
        return Email;
    }
    public static void setEmail(String email) {
        Email = email;
    }
    public static String getContact() {
        return Contact;
    }
    public static void setContact(String contact) {
        Contact = contact;
    }
    public static String getPassword() {
        return password;
    }
    public static void setPassword(String password) {
        Storage.password = password;
    }



}

Login.fxml

<?xml version="1.0" encoding="UTF-8"?>

<?import javafx.scene.control.Button?>
<?import javafx.scene.control.Label?>
<?import javafx.scene.control.PasswordField?>
<?import javafx.scene.control.TextField?>
<?import javafx.scene.layout.AnchorPane?>
<?import javafx.scene.text.Font?>

<AnchorPane maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" onDragDetected="#loginButton" prefHeight="390.0" prefWidth="304.0" xmlns="http://javafx.com/javafx/8.0.141" xmlns:fx="http://javafx.com/fxml/1" fx:controller="loginApplication.LoginController">
   <children>
      <TextField fx:id="email_textfield" layoutX="38.0" layoutY="83.0" prefHeight="34.0" prefWidth="229.0" promptText="Email">
         <font>
            <Font size="14.0" />
         </font>
      </TextField>
      <PasswordField fx:id="password_textfield" layoutX="38.0" layoutY="152.0" prefHeight="34.0" prefWidth="229.0" promptText="Password" />
      <Button layoutX="87.0" layoutY="222.0" mnemonicParsing="false" onAction="#loginButton" prefHeight="51.0" prefWidth="131.0" text="Login" textAlignment="CENTER" textFill="#328d38">
         <font>
            <Font name="Courier New Bold" size="22.0" />
         </font>
      </Button>
      <Label fx:id="error_lab" layoutX="59.0" layoutY="284.0" prefHeight="29.0" prefWidth="229.0" textFill="#ee0c0c">
         <font>
            <Font size="18.0" />
         </font>
      </Label>
      <Button layoutX="110.0" layoutY="284.0" mnemonicParsing="false" onAction="#signupButton" prefHeight="29.0" prefWidth="85.0" text="Sign up" textAlignment="CENTER" textFill="#3b21e4">
         <font>
            <Font name="Courier New Bold" size="15.0" />
         </font>
      </Button>
   </children>
</AnchorPane>

Profile.fxml

<?xml version="1.0" encoding="UTF-8"?>

<?import javafx.scene.control.Button?>
<?import javafx.scene.control.Label?>
<?import javafx.scene.control.PasswordField?>
<?import javafx.scene.control.TextField?>
<?import javafx.scene.layout.AnchorPane?>
<?import javafx.scene.text.Font?>

<AnchorPane maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="420.0" prefWidth="560.0" xmlns="http://javafx.com/javafx/8.0.141" xmlns:fx="http://javafx.com/fxml/1" fx:controller="loginApplication.ProfileController">
   <children>
      <Button fx:id="edit" layoutX="202.0" layoutY="363.0" mnemonicParsing="false" onAction="#editButton" prefHeight="26.0" prefWidth="111.0" text="Edit">
         <font>
            <Font size="14.0" />
         </font>
      </Button>
      <TextField fx:id="name" layoutX="202.0" layoutY="28.0" prefHeight="25.0" prefWidth="329.0" promptText="Name">
         <font>
            <Font size="18.0" />
         </font>
      </TextField>
      <TextField fx:id="email" layoutX="202.0" layoutY="242.0" prefHeight="25.0" prefWidth="329.0" promptText="Email">
         <font>
            <Font size="18.0" />
         </font>
      </TextField>
      <TextField fx:id="gender" layoutX="202.0" layoutY="132.0" prefHeight="25.0" prefWidth="329.0" promptText="Gender">
         <font>
            <Font size="18.0" />
         </font>
      </TextField>
      <TextField fx:id="contact" layoutX="202.0" layoutY="187.0" prefHeight="25.0" prefWidth="329.0" promptText="Contact">
         <font>
            <Font size="18.0" />
         </font>
      </TextField>
      <TextField fx:id="age" layoutX="202.0" layoutY="81.0" prefHeight="25.0" prefWidth="329.0" promptText="Age">
         <font>
            <Font size="18.0" />
         </font>
      </TextField>
      <Button fx:id="save" layoutX="420.0" layoutY="363.0" mnemonicParsing="false" onAction="#saveButton" prefHeight="26.0" prefWidth="111.0" text="Save">
         <font>
            <Font size="14.0" />
         </font>
      </Button>
      <PasswordField fx:id="password" layoutX="202.0" layoutY="297.0" prefHeight="39.0" prefWidth="329.0" promptText="Password">
         <font>
            <Font size="18.0" />
         </font>
      </PasswordField>
      <Label layoutX="35.0" layoutY="34.0" text="Name">
         <font>
            <Font name="Cambria Math" size="30.0" />
         </font>
      </Label>
      <Label layoutX="35.0" layoutY="88.0" text="Age">
         <font>
            <Font name="Cambria Math" size="30.0" />
         </font>
      </Label>
      <Label layoutX="35.0" layoutY="139.0" text="Gender">
         <font>
            <Font name="Cambria Math" size="30.0" />
         </font>
      </Label>
      <Label layoutX="35.0" layoutY="194.0" text="Contact">
         <font>
            <Font name="Cambria Math" size="30.0" />
         </font>
      </Label>
      <Label layoutX="35.0" layoutY="249.0" text="Email">
         <font>
            <Font name="Cambria Math" size="30.0" />
         </font>
      </Label>
      <Label layoutX="35.0" layoutY="304.0" text="Password">
         <font>
            <Font name="Cambria Math" size="30.0" />
         </font>
      </Label>
   </children>
</AnchorPane>

我希望如果某些事情行不通或您需要了解一些问题，请寻求帮助：）