JavaFX tableview无法正确显示

纳加兹

我有一个JavaFX应用程序,其中的场景有两个表视图,第一个可以正常工作,第二个则不能。

第二个表视图仅显示应显示的5列中的2列的内容,而第二列的内容实际上应位于最后一列。我之前使用过javaFX几次,这是我第一次看到这样的东西,我将代码修改了2到3次,以查找可能是错误或拼写错误的东西,但我一直找不到。

这就是表视图显示的内容。

在此处输入图片说明

这是它包含的对象类的代码。

public class Producte {

    private int codi;
    private String nom;
    private String descripcio;
    private float preu;
    private int codiFabricant;

    public Producte(String nom, String descripcio, float preu,
            int codiFabricant) {
        this.nom = nom;
        this.descripcio = descripcio;
        this.preu = preu;
        this.codiFabricant = codiFabricant;
    }

    public Producte(int codi, String nom, String descripcio, float preu,
            int codiFabricant) {
        this.codi = codi;
        this.nom = nom;
        this.descripcio = descripcio;
        this.preu = preu;
        this.codiFabricant = codiFabricant;
    }

    public int getCodi() {
        return codi;
    }

    public void setCodi(int codi) {
        this.codi = codi;
    }

    public String getNom() {
        return nom;
    }

    public void setNom(String nom) {
        this.nom = nom;
    }

    public String getDescripcio() {
        return descripcio;
    }

    public void setDescripcio(String descripcio) {
        this.descripcio = descripcio;
    }

    public float getPreu() {
        return preu;
    }

    public void setPreu(float preu) {
        this.preu = preu;
    }

    public int getCodiFabricant() {
        return codiFabricant;
    }

    public void setCodiFabricant(int codiFabricant) {
        this.codiFabricant = codiFabricant;
    }

    @Override
    public String toString() {
        return "Producte [codi=" + codi + ", nom=" + nom + ", descripcio="
                + descripcio + ", preu=" + preu + ", codiFabricant="
                + codiFabricant + "]";
    }

}

这是加载场景的方法中的代码。第一个表视图是dirTable,第二个表视图(不能正常工作的是prodTable)。在此先感谢您的帮助:/

static Scene directorScene() {
        GridPane gridPane = new GridPane();
        gridPane.setAlignment(Pos.CENTER);
        gridPane.setVgap(25);
        gridPane.setHgap(25);

        director = DirectorFunctions.director;

        final ObservableList<Director> dirList = FXCollections.observableArrayList();
        dirList.add(director);

        TableView<Director> dirTable = new TableView<>();
        dirTable.setItems(dirList);

        TableColumn<Director, String> fabCol = new TableColumn<>("Fabricant");
        TableColumn<Director, String> dniCol = new TableColumn<>("DNI");
        TableColumn<Director, String> nomCol = new TableColumn<>("Nom");
        TableColumn<Director, String> mailCol = new TableColumn<>("Mail");
        TableColumn<Director, String> passCol = new TableColumn<>("Pass");

        fabCol.setCellValueFactory(new PropertyValueFactory<Director,String>("Nom"));
        dniCol.setCellValueFactory(new PropertyValueFactory<Director,String>("DniDirector"));
        nomCol.setCellValueFactory(new PropertyValueFactory<Director,String>("NomDirector"));
        mailCol.setCellValueFactory(new PropertyValueFactory<Director,String>("MailDirector"));
        passCol.setCellValueFactory(new PropertyValueFactory<Director,String>("PasswordDirector"));

        dirTable.getColumns().setAll(fabCol, dniCol, nomCol, mailCol, passCol);
        dirTable.setMinWidth(450);
        dirTable.setMaxHeight(52);
        dirTable.setColumnResizePolicy(TableView.CONSTRAINED_RESIZE_POLICY);

        gridPane.add(dirTable, 0, 0);

        Button modificarDirector = new Button("Modificar");
        modificarDirector.setOnAction(new EventHandler<ActionEvent>() {

            @Override
            public void handle(ActionEvent event) {
                // TODO Auto-generated method stub

            }
        });
        gridPane.add(modificarDirector, 1, 0);

        final ObservableList<Producte> prodList = FXCollections.observableArrayList();
        for (Producte p:DirectorFunctions.productes.values()) {
            prodList.add(p);
        }

        TableView<Producte> prodTable = new TableView<>();
        prodTable.setItems(prodList);

        TableColumn<Producte, String> codiPCol = new TableColumn<>("Codi");
        TableColumn<Producte, String> nomPCol = new TableColumn<>("Nom");
        TableColumn<Producte, String> descPCol = new TableColumn<>("Descripció");
        TableColumn<Producte, String> preuPCol = new TableColumn<>("Preu");
        TableColumn<Producte, String> fabPCol = new TableColumn<>("Fabricant");

        codiPCol.setCellValueFactory(new PropertyValueFactory<Producte, String>("Codi"));
        nomPCol.setCellValueFactory(new PropertyValueFactory<Producte, String>("Nom"));
        nomPCol.setCellValueFactory(new PropertyValueFactory<Producte, String>("Descripcio"));
        nomPCol.setCellValueFactory(new PropertyValueFactory<Producte, String>("Preu"));
        nomPCol.setCellValueFactory(new PropertyValueFactory<Producte, String>("CodiFabricant"));

        prodTable.getColumns().setAll(codiPCol, nomPCol, descPCol, preuPCol, fabPCol);
        prodTable.setMinWidth(450);
        prodTable.setMaxHeight(200);
        prodTable.setColumnResizePolicy(TableView.CONSTRAINED_RESIZE_POLICY);

        gridPane.add(prodTable, 0, 1);

        Button nouButton = new Button("Nou");
        nouButton.setOnAction(new EventHandler<ActionEvent>() {

            @Override
            public void handle(ActionEvent event) {
                // TODO Auto-generated method stub

            }
        });
        nouButton.setMinWidth(75);

        Button modButton = new Button("Modificar");
        modButton.setOnAction(new EventHandler<ActionEvent>() {

            @Override
            public void handle(ActionEvent event) {
                // TODO Auto-generated method stub

            }
        });
        modButton.setMinWidth(75);

        Button delButton = new Button("Borrar");
        delButton.setOnAction(new EventHandler<ActionEvent>() {

            @Override
            public void handle(ActionEvent event) {
                // TODO Auto-generated method stub

            }
        });
        delButton.setMinWidth(75);

        Button backButton = new Button("Tornar");
        backButton.setOnAction(new EventHandler<ActionEvent>() {

            @Override
            public void handle(ActionEvent event) {
                // TODO Auto-generated method stub

            }
        });
        backButton.setMinWidth(75);
        gridPane.add(backButton, 1, 2);

        VBox vbox = new VBox(25);
        vbox.getChildren().addAll(nouButton, modButton, delButton);
        gridPane.add(vbox, 1, 1);

        Scene scene = new Scene(gridPane, 640, 480, Color.web("eee"));
        return scene;
    }

这是导演类,适合任何想看的人

public class Director {

    private int codi;
    private String nom;
    private String dniDirector;
    private String nomDirector;
    private String mailDirector;
    private String passwordDirector;

    public Director(int codi, String nom, String dniDirector,
            String nomDirector, String mailDirector, String passwordDirector) {
        this.codi = codi;
        this.nom = nom;
        this.dniDirector = dniDirector;
        this.nomDirector = nomDirector;
        this.mailDirector = mailDirector;
        this.passwordDirector = passwordDirector;
    }

    public int getCodi() {
        return codi;
    }

    public void setCodi(int codi) {
        this.codi = codi;
    }

    public String getNom() {
        return nom;
    }

    public void setNom(String nom) {
        this.nom = nom;
    }

    public String getDniDirector() {
        return dniDirector;
    }

    public void setDniDirector(String dniDirector) {
        this.dniDirector = dniDirector;
    }

    public String getNomDirector() {
        return nomDirector;
    }

    public void setNomDirector(String nomDirector) {
        this.nomDirector = nomDirector;
    }

    public String getMailDirector() {
        return mailDirector;
    }

    public void setMailDirector(String mailDirector) {
        this.mailDirector = mailDirector;
    }

    public String getPasswordDirector() {
        return passwordDirector;
    }

    public void setPasswordDirector(String passwordDirector) {
        this.passwordDirector = passwordDirector;
    }

    @Override
    public String toString() {
        return "Fabricant [codi=" + codi + ", nom=" + nom + ", dniDirector="
                + dniDirector + ", nomDirector=" + nomDirector
                + ", mailDirector=" + mailDirector + ", passwordDirector="
                + passwordDirector + "]";
    }

}
宇智波

我建议您对所有模型都使用JavaFX属性。您可以在此处找到样本

PropertyValueFactory<S,T>查找类型为Tin的属性,S其名称与您在构造函数中键入的名称相同。

例如,在Product具有StringProperty字段的模型类name

new PropertyValueFactory<Product, String>("name")

将寻找:

nameProperty()

如果找不到它,它将在返回之前进一步寻找getName()并包装在中ReadOnlyObjectWrapper

从文档中

如果不存在与该模式匹配的方法,则尝试调用get()或is()(即上例中的getFirstName()或isFirstName())具有透支支持。如果存在与该模式匹配的方法,则从该方法返回的值将包装在ReadOnlyObjectWrapper中,并返回给TableCell

您的示例中的问题是您的表列有一个cellValueFactory,其中说:

nomPCol.setCellValueFactory(new PropertyValueFactory<Producte, String>("Preu"));

但是您的getter方法返回的是afloat而不是aString

public float getPreu() {
    return preu;
}

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