javaFx（9）TableView_javafx tableview 值太长

作者：羊村懒王 | 2024-03-05 14:16:53

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javafx tableview 值太长

使用TableView可以实现对不同的数据进行归纳分类显示

效果如下，我们封装了一个POJO类名为Persion，并重写了里面的get和set方法，这给类下面有3个SimpleStringProperty属性，分别为firstName，lastName，Email，为要分箱的3中属性
这里写图片描述

package application;

import javafx.application.Application;
import javafx.beans.property.SimpleStringProperty;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.geometry.Insets;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.scene.control.TableColumn;
import javafx.scene.control.TableView;
import javafx.scene.control.cell.PropertyValueFactory;
import javafx.scene.layout.VBox;
import javafx.scene.text.Font;
import javafx.stage.Stage;

public class Main extends Application {

    private final TableView<Person> table = new TableView<>();

    // 数据源
    private final ObservableList<Person> data =
        FXCollections.observableArrayList(
            new Person("Jacob", "Smith", "jacob.smith@example.com"),
            new Person("Isabella", "Johnson", "isabella.johnson@example.com"),
            new Person("Ethan", "Williams", "ethan.williams@example.com"),
            new Person("Emma", "Jones", "emma.jones@example.com"),
            new Person("Michael", "Brown", "michael.brown@example.com")
        );

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

    @Override
    public void start(Stage stage) {
        Scene scene = new Scene(new Group());
        stage.setTitle("Table View Sample");
        stage.setWidth(450);
        stage.setHeight(500);

        final Label label = new Label("Address Book");
        label.setFont(new Font("Arial", 20));

        table.setEditable(true);

        // 每个Table的列
        TableColumn firstNameCol = new TableColumn("First Name");
        // 设置宽度
        firstNameCol.setMinWidth(100);
        // 设置分箱的类下面的属性名
        firstNameCol.setCellValueFactory(
                new PropertyValueFactory<>("firstName"));

        TableColumn lastNameCol = new TableColumn("Last Name");
        lastNameCol.setMinWidth(100);
        lastNameCol.setCellValueFactory(
                new PropertyValueFactory<>("lastName"));

        TableColumn emailCol = new TableColumn("Email");
        emailCol.setMinWidth(200);
        emailCol.setCellValueFactory(
                new PropertyValueFactory<>("email"));

        // 设置数据源
        table.setItems(data);
        // 一次添加列进TableView
        table.getColumns().addAll(firstNameCol, lastNameCol, emailCol);

        final VBox vbox = new VBox();
        vbox.setSpacing(5);
        vbox.setPadding(new Insets(10, 0, 0, 10));
        vbox.getChildren().addAll(label, table);

        ((Group) scene.getRoot()).getChildren().addAll(vbox);

        stage.setScene(scene);
        stage.show();
    }

    public static class Person {

        private final SimpleStringProperty firstName;
        private final SimpleStringProperty lastName;
        private final SimpleStringProperty email;

        private Person(String fName, String lName, String email) {
            this.firstName = new SimpleStringProperty(fName);
            this.lastName = new SimpleStringProperty(lName);
            this.email = new SimpleStringProperty(email);
        }

        public String getFirstName() {
            return firstName.get();
        }

        public void setFirstName(String fName) {
            firstName.set(fName);
        }

        public String getLastName() {
            return lastName.get();
        }

        public void setLastName(String fName) {
            lastName.set(fName);
        }

        public String getEmail() {
            return email.get();
        }

        public void setEmail(String fName) {
            email.set(fName);
        }
    }
} 
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实现添加一行的操作，添加3个文本区和按钮即可

这里写图片描述

package application;

import javafx.application.Application;
import javafx.beans.property.SimpleStringProperty;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.event.ActionEvent;
import javafx.geometry.Insets;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.scene.control.TableColumn;
import javafx.scene.control.TableView;
import javafx.scene.control.TextField;
import javafx.scene.control.cell.PropertyValueFactory;
import javafx.scene.layout.HBox;
import javafx.scene.layout.VBox;
import javafx.scene.text.Font;
import javafx.stage.Stage;

public class Main extends Application {

    private final TableView<Person> table = new TableView<>();
    final HBox hb = new HBox();
    // 数据源
    private final ObservableList<Person> data =
        FXCollections.observableArrayList(
            new Person("Jacob", "Smith", "jacob.smith@example.com"),
            new Person("Isabella", "Johnson", "isabella.johnson@example.com"),
            new Person("Ethan", "Williams", "ethan.williams@example.com"),
            new Person("Emma", "Jones", "emma.jones@example.com"),
            new Person("Michael", "Brown", "michael.brown@example.com")
        );

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

    @Override
    public void start(Stage stage) {
        Scene scene = new Scene(new Group());
        stage.setTitle("Table View Sample");
        stage.setWidth(500);
        stage.setHeight(550);

        final Label label = new Label("Address Book");
        label.setFont(new Font("Arial", 20));

        table.setEditable(true);

        // 每个Table的列
        TableColumn firstNameCol = new TableColumn("First Name");
        // 设置宽度
        firstNameCol.setMinWidth(100);
        // 设置分箱的类下面的属性名
        firstNameCol.setCellValueFactory(
                new PropertyValueFactory<>("firstName"));

        TableColumn lastNameCol = new TableColumn("Last Name");
        lastNameCol.setMinWidth(100);
        lastNameCol.setCellValueFactory(
                new PropertyValueFactory<>("lastName"));

        TableColumn emailCol = new TableColumn("Email");
        emailCol.setMinWidth(250);
        emailCol.setCellValueFactory(
                new PropertyValueFactory<>("email"));

        // 设置数据源
        table.setItems(data);
        // 一次添加列进TableView
        table.getColumns().addAll(firstNameCol, lastNameCol, emailCol);

        // 创建3个文本编辑框
        final TextField addFirstName = new TextField();
        addFirstName.setPromptText("First Name");
        // 设置宽度
        addFirstName.setPrefWidth(100);

        final TextField addLastName = new TextField();
        addLastName.setPrefWidth(100);
        addLastName.setPromptText("Last Name");

        final TextField addEmail = new TextField();
        addEmail.setPrefWidth(195);
        addEmail.setPromptText("Email");


        // 创建一个添加按钮
        final Button addButton = new Button("Add");
        // 设置按钮的事件响应
        addButton.setOnAction((ActionEvent e) -> {
            // 数据源添加一行
            data.add(new Person(
                addFirstName.getText(),
                addLastName.getText(),
                addEmail.getText()
            ));
            // 清空文本
            addFirstName.clear();
            addLastName.clear();
            addEmail.clear();
        });

        hb.getChildren().addAll(addFirstName, addLastName, addEmail, addButton);
        hb.setSpacing(3);

        final VBox vbox = new VBox();
        vbox.setSpacing(5);
        vbox.setPadding(new Insets(10, 0, 0, 10));
        vbox.getChildren().addAll(label, table, hb);

        ((Group) scene.getRoot()).getChildren().addAll(vbox);

        stage.setScene(scene);
        stage.show();
    }

    public static class Person {

        private final SimpleStringProperty firstName;
        private final SimpleStringProperty lastName;
        private final SimpleStringProperty email;

        private Person(String fName, String lName, String email) {
            this.firstName = new SimpleStringProperty(fName);
            this.lastName = new SimpleStringProperty(lName);
            this.email = new SimpleStringProperty(email);
        }

        public String getFirstName() {
            return firstName.get();
        }

        public void setFirstName(String fName) {
            firstName.set(fName);
        }

        public String getLastName() {
            return lastName.get();
        }

        public void setLastName(String fName) {
            lastName.set(fName);
        }

        public String getEmail() {
            return email.get();
        }

        public void setEmail(String fName) {
            email.set(fName);
        }
    }
} 
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设置可以修改数据项

这里写图片描述

package application;

import javafx.application.Application;
import javafx.beans.property.SimpleStringProperty;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.event.ActionEvent;
import javafx.geometry.Insets;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.scene.control.TableColumn;
import javafx.scene.control.TableColumn.CellEditEvent;
import javafx.scene.control.TableView;
import javafx.scene.control.TextField;
import javafx.scene.control.cell.PropertyValueFactory;
import javafx.scene.control.cell.TextFieldTableCell;
import javafx.scene.layout.HBox;
import javafx.scene.layout.VBox;
import javafx.scene.text.Font;
import javafx.stage.Stage;

public class Main extends Application {

    private final TableView<Person> table = new TableView<>();
    final HBox hb = new HBox();
    // 数据源
    private final ObservableList<Person> data =
        FXCollections.observableArrayList(
            new Person("Jacob", "Smith", "jacob.smith@example.com"),
            new Person("Isabella", "Johnson", "isabella.johnson@example.com"),
            new Person("Ethan", "Williams", "ethan.williams@example.com"),
            new Person("Emma", "Jones", "emma.jones@example.com"),
            new Person("Michael", "Brown", "michael.brown@example.com")
        );

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

    @Override
    public void start(Stage stage) {
        Scene scene = new Scene(new Group());
        stage.setTitle("Table View Sample");
        stage.setWidth(500);
        stage.setHeight(550);

        final Label label = new Label("Address Book");
        label.setFont(new Font("Arial", 20));

        table.setEditable(true);

        // 每个Table的列
        TableColumn<Person, String> firstNameCol = new TableColumn<>("First Name");
        // 设置宽度
        firstNameCol.setMinWidth(100);
        // 设置分箱的类下面的属性名
        firstNameCol.setCellValueFactory(
                new PropertyValueFactory<>("firstName"));
        // 设置为可编辑的
        firstNameCol.setCellFactory(TextFieldTableCell.<Person>forTableColumn());
        firstNameCol.setOnEditCommit(
            (CellEditEvent<Person, String> t) -> {
                ((Person) t.getTableView().getItems().get(
                        t.getTablePosition().getRow())
                        ).setFirstName(t.getNewValue());
        });




        TableColumn<Person, String> lastNameCol = new TableColumn<>("Last Name");
        lastNameCol.setMinWidth(100);
        lastNameCol.setCellValueFactory(new PropertyValueFactory<>("lastName"));
        lastNameCol.setCellFactory(TextFieldTableCell.<Person>forTableColumn());
        lastNameCol.setOnEditCommit((CellEditEvent<Person, String> t) -> {
            ((Person) t.getTableView().getItems().get(t.getTablePosition().getRow())).setLastName(t.getNewValue());
        });

        TableColumn<Person, String> emailCol = new TableColumn<>("Email");
        emailCol.setMinWidth(200);
        emailCol.setCellValueFactory(new PropertyValueFactory<>("email"));
        emailCol.setCellFactory(TextFieldTableCell.<Person>forTableColumn());
        emailCol.setOnEditCommit((CellEditEvent<Person, String> t) -> {
            ((Person) t.getTableView().getItems().get(t.getTablePosition().getRow())).setEmail(t.getNewValue());
        });

        // 设置数据源
        table.setItems(data);
        // 一次添加列进TableView
        table.getColumns().addAll(firstNameCol, lastNameCol, emailCol);

        // 创建3个文本编辑框
        final TextField addFirstName = new TextField();
        addFirstName.setPromptText("First Name");
        // 设置宽度
        addFirstName.setPrefWidth(100);

        final TextField addLastName = new TextField();
        addLastName.setPrefWidth(100);
        addLastName.setPromptText("Last Name");

        final TextField addEmail = new TextField();
        addEmail.setPrefWidth(195);
        addEmail.setPromptText("Email");


        // 创建一个添加按钮
        final Button addButton = new Button("Add");
        // 设置按钮的事件响应
        addButton.setOnAction((ActionEvent e) -> {
            data.add(new Person(
                addFirstName.getText(),
                addLastName.getText(),
                addEmail.getText()
            ));
            // 清空文本
            addFirstName.clear();
            addLastName.clear();
            addEmail.clear();
        });

        hb.getChildren().addAll(addFirstName, addLastName, addEmail, addButton);
        hb.setSpacing(3);

        final VBox vbox = new VBox();
        vbox.setSpacing(5);
        vbox.setPadding(new Insets(10, 0, 0, 10));
        vbox.getChildren().addAll(label, table, hb);

        ((Group) scene.getRoot()).getChildren().addAll(vbox);

        stage.setScene(scene);
        stage.show();
    }

    public static class Person {

        private final SimpleStringProperty firstName;
        private final SimpleStringProperty lastName;
        private final SimpleStringProperty email;

        private Person(String fName, String lName, String email) {
            this.firstName = new SimpleStringProperty(fName);
            this.lastName = new SimpleStringProperty(lName);
            this.email = new SimpleStringProperty(email);
        }

        public String getFirstName() {
            return firstName.get();
        }

        public void setFirstName(String fName) {
            firstName.set(fName);
        }

        public String getLastName() {
            return lastName.get();
        }

        public void setLastName(String fName) {
            lastName.set(fName);
        }

        public String getEmail() {
            return email.get();
        }

        public void setEmail(String fName) {
            email.set(fName);
        }
    }
} 
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