2018-04-19 javaFX的TableView 增删

首先代码如下，创建工程复制以下代码

import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
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.RadioButton;
import javafx.scene.control.TableCell;
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.stage.Stage;
import javafx.util.Callback;

public class FXtable extends Application {

    private final TableView<Person> table = new TableView<>();
    private final ObservableList<Person> data
            = FXCollections.observableArrayList(
//                    new Person("Jacob", "Smith"),
//                    new Person("Isabella", "Johnson"),
//                    new Person("Ethan", "Williams"),
//                    new Person("Emma", "Jones"),
//                    new Person("Michael", "Brown")
            );
    
    final HBox hb = new HBox();
    
    public static void main(String[] args) {
        launch(args);
    }

    public static class Person {

        private final SimpleStringProperty firstName;
        private final SimpleStringProperty lastName;

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

        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);
        }

    }

    @Override
    public void start(Stage stage) throws Exception {
        //loaddata();
        
        File file = new File("C:\\Users\\micro\\eclipse-workspace\\app\\src\\app\\movie.txt");
        if(file.exists()) {
            FileReader fileReader=null;
            fileReader=new FileReader(file);
            BufferedReader bReader=new BufferedReader(fileReader);
            String line=bReader.readLine();
            String[] txtdata=null;//line.split(" ");

            while(line!=null) {
                txtdata=line.split(" ");
                //Mo person = new Person(fName, lName)
                line=bReader.readLine();
            }
            
        }
        
        stage.setWidth(600);
        stage.setHeight(500);

        TableColumn firstNameCol = new TableColumn("First Name");
        firstNameCol.setCellValueFactory(new PropertyValueFactory<>("firstName"));

        TableColumn lastNameCol = new TableColumn("Last Name");
        lastNameCol.setCellValueFactory(new PropertyValueFactory<>("lastName"));
        
        TableColumn checkboxcol = new TableColumn("Discount Ticket");
        checkboxcol.setCellFactory(new PropertyValueFactory<>("check"));
        
        Callback<TableColumn<Person, String>, TableCell<Person, String>> cellFactory1
        = //
        new Callback<TableColumn<Person, String>, TableCell<Person, String>>() {
            @Override
            public TableCell call(final TableColumn<Person, String> param) {
                final TableCell<Person, String> cell = new TableCell<Person, String>() {
        
                    final Button rb = new Button("Discount ticket");
                    
        
                    @Override
                    public void updateItem(String item, boolean empty) {
                        super.updateItem(item, empty);
                        if (empty) {
                            setGraphic(null);
                            setText(null);
                        } else {
                            rb.setOnAction(event -> {
                                Person person = getTableView().getItems().get(getIndex());
                                System.out.println(person.getFirstName()
                                        + "   " + person.getLastName());
                            });
                            setGraphic(rb);
                            setText(null);
                        }
                    }
                };
                return cell;
            }
        };
        
        checkboxcol.setCellFactory(cellFactory1);

        TableColumn actionCol = new TableColumn("Standard Ticket");
        actionCol.setCellValueFactory(new PropertyValueFactory<>("DUMMY"));

        Callback<TableColumn<Person, String>, TableCell<Person, String>> cellFactory
                = //
                new Callback<TableColumn<Person, String>, TableCell<Person, String>>() {
            @Override
            public TableCell call(final TableColumn<Person, String> param) {
                final TableCell<Person, String> cell = new TableCell<Person, String>() {

                    final Button btn = new Button("Buy It");

                    @Override
                    public void updateItem(String item, boolean empty) {
                        super.updateItem(item, empty);
                        if (empty) {
                            setGraphic(null);
                            setText(null);
                        } else {
                            btn.setOnAction(event -> {
                                Person person = getTableView().getItems().get(getIndex());
                                System.out.println(person.getFirstName()
                                        + "   " + person.getLastName());
                            });
                            setGraphic(btn);
                            setText(null);
                        }
                    }
                };
                return cell;
            }
        };

        actionCol.setCellFactory(cellFactory);
        TableColumn DelCol = new TableColumn("Del");
        DelCol.setCellValueFactory(new PropertyValueFactory<>("Del"));

        Callback<TableColumn<Person, String>, TableCell<Person, String>> DcellFactory
                = //
                new Callback<TableColumn<Person, String>, TableCell<Person, String>>() {
            @Override
            public TableCell call(final TableColumn<Person, String> param) {
                final TableCell<Person, String> cell = new TableCell<Person, String>() {

                    final Button btn = new Button("Del");

                    @Override
                    public void updateItem(String item, boolean empty) {
                        super.updateItem(item, empty);
                        if (empty) {
                            setGraphic(null);
                            setText(null);
                        } else {
                            btn.setOnAction(event -> {
                                Person person =getTableView().getItems().get(getIndex());
                                data.remove(person);
                            });
                            setGraphic(btn);
                            setText(null);
                        }
                    }
                };
                return cell;
            }
        };

        DelCol.setCellFactory(DcellFactory);

        table.setItems(data);
        table.getColumns().addAll(firstNameCol, lastNameCol,checkboxcol, actionCol,DelCol);
        
        final TextField addFirstName = new TextField();
        addFirstName.setPromptText("First Name");
        addFirstName.setMaxWidth(firstNameCol.getPrefWidth());
        final TextField addLastName = new TextField();
        addLastName.setMaxWidth(lastNameCol.getPrefWidth());
        addLastName.setPromptText("Last Name");
      


        final Button addButton = new Button("Add");
        addButton.setOnAction((ActionEvent e) -> {
            data.add(new Person(
                    addFirstName.getText(),
                    addLastName.getText()
                    ));
            addFirstName.clear();
            addLastName.clear();

        });
        
      

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

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

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

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

    private static void loaddata() throws Exception {
        File file = new File("C:\\Users\\micro\\eclipse-workspace\\app\\src\\app\\movie.txt");
        if(file.exists()) {
            FileReader fileReader=null;
            fileReader=new FileReader(file);
            BufferedReader bReader=new BufferedReader(fileReader);
            String line=bReader.readLine();
            String[] txtdata=null;//line.split(" ");

            while(line!=null) {
                txtdata=line.split(" ");
                
                line=bReader.readLine();
            }
            
        }
        
    }

原始界面：

image.png

添加一条数据后

image.png

点击Del 删除数据