我有一个 JavaFX 应用程序，其场景有两个 TableView ，第一个可以正常工作，第二个则不能。
第二个表格 View 只显示它应该显示的 5 列中的 2 列的内容，而第二列上的内容实际上应该在最后一列上。我之前使用过javaFX几次，这是我第一次看到这样的东西，我修改了我的代码2或3次，寻找可能错误或拼写错误的东西，但我一直没能找到它。
这就是表格 View 显示的内容。
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 TableView 是dirTable，第二个 TableView (不能正常工作的是prodTable)。预先感谢您的任何帮助:/
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;
}
对于任何想看的人来说，这都是导演类(class)
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 + "]";
}
}
最佳答案
我建议您对所有模型使用 JavaFX 属性。您可以在 here 中找到示例.
PropertyValueFactory<S,T> 查找 T 类型的属性在S使用与您在构造函数中输入的名称相同的名称。
例如，在模型类 Product 中其中有一个 StringProperty 字段 name ,
new PropertyValueFactory<Product, String>("name")
将寻找:
nameProperty()
如果没有找到，则会进一步寻找getName()并将其包裹在 ReadOnlyObjectWrapper 中在返回之前。
来自文档，
If no method matching this pattern exists, there is fall-through support for attempting to call get() or is() (that is, getFirstName() or isFirstName() in the example above). If a method matching this pattern exists, the value returned from this method is wrapped in a ReadOnlyObjectWrapper and returned to the TableCell
您的示例中的问题是您的表格列有一个 cellValueFactory ，它表示，
nomPCol.setCellValueFactory(new PropertyValueFactory<Producte, String>("Preu"));
但是你的 getter 方法返回 float而不是String
public float getPreu() {
return preu;
}
关于JavaFX 表格 View 无法正确显示，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/29181405/