Date data not displaying in tableview [duplicate] - javafx

Question

This question already has an answer here:
Why my JavaFX TableView is empty
(1 answer)
Closed 4 years ago.
hello everyone the Date value does not showing in the tableview, i pass the correct parameters but i think i need to format the Date data to transform that data to a string value, i am using the Object Property for the Date and the SimpleStringProperty and SimpleIntergerProperty for the name, lastname, and ID
in the Insert Method i used preparedstatement to save the data in the Database, that seems ok, i declare in the database fecha_nacimiento as Date, but when i am showing the date data into the tableview, like i said before the tablecolumn appears empy
i put all my code here to revision or improvement of that error, i need some help to review the process in setting or formating the value of the table column date to string.
any help could be helpful. regards.
date data empy in tableview:
modifications 1 in the controller #Daniel Subelman:
modifications 2 class persona #Daniel Subelman:
issue after modifications #Daniel Subelman:
constructor exception error 1:
unsopported operation error:
nulpointer exception error:
here is my controller code
package application;
import java.io.IOException;
import java.net.URL;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.time.LocalDate;
import java.time.ZoneId;
import java.time.format.DateTimeFormatter;
import java.util.ResourceBundle;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.fxml.FXML;
import javafx.fxml.FXMLLoader;
import javafx.fxml.Initializable;
import javafx.scene.Scene;
import javafx.scene.control.Alert;
import javafx.scene.control.Alert.AlertType;
import javafx.scene.control.Button;
import javafx.scene.control.DatePicker;
import javafx.scene.control.MenuBar;
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.stage.Stage;
public class ConexionController implements Initializable {
#FXML TableView<Persona> tablacliente;
#FXML TableColumn<Persona, String> nombrescol;
#FXML TableColumn<Persona,String > apellidoscol;
#FXML TableColumn<Persona, Integer> clienteid;
#FXML TableColumn<Persona,LocalDate> fechacli;
ResultSet rs=null;
Connection Conexion=null;
#FXML private Button btn;
#FXML private Button mtn;
#FXML private Button lmp;
#FXML private Button mts;
#FXML private Button bqd;
#FXML private Button bqape;
#FXML private TextField nm;
#FXML private TextField ap;
#FXML private TextField bq;
#FXML private TextField bqa;
#FXML private MenuBar menucombo;
#FXML private Button botonborrar;
#FXML private TextField borrar;
#FXML private DatePicker mifecha;
#Override
public void initialize(URL arg0, ResourceBundle arg1) {
clienteid.setCellValueFactory(new PropertyValueFactory <Persona, Integer>("id_cliente"));
nombrescol.setCellValueFactory(new PropertyValueFactory <Persona, String>("nombres"));
apellidoscol.setCellValueFactory(new PropertyValueFactory <Persona, String>("apellidos"));
//fechacli.setCellValueFactory(new PropertyValueFactory <Persona, LocalDate>("fechacliente"));//
DateTimeFormatter formatter = DateTimeFormatter.ofPattern("dd/MM/yyyy");
fechacli.setCellFactory(column -> {
return new TableCell<Persona, LocalDate>() {
#Override
protected void updateItem(LocalDate item, boolean empty) {
super.updateItem(item, empty);
if (item == null || empty) {
setText(null);
} else {
setText(formatter.format(item));
}
}
};
});
seleccionaregistros();
seleccionanombre();
seleccionapellido();
}
public void borraregistro() {
int id = Integer.parseInt(borrar.getText());
String consulta=" delete from cliente where id=? ";
Connection conn=null;{
try {
conn=DriverManager.getConnection("jdbc:sqlserver://localhost:1433;databaseName=prueba", "sa", "milkas87");
PreparedStatement ps =conn.prepareStatement(consulta);
ps.setInt(1, id);
ps.executeQuery();
}catch (SQLException e) {
e.printStackTrace();
}
Alert alert = new Alert(AlertType.INFORMATION);
alert.setTitle("Informacion");
alert.setHeaderText(null);
alert.setContentText("Registro borrado correctamente");
alert.showAndWait();
}
seleccionaregistros();
}
public void conexion(){
try {
Conexion=DriverManager.getConnection("jdbc:sqlserver://localhost:1433;databaseName=prueba", "sa", "milkas87");
}
catch (SQLException e) {
e.printStackTrace();
}
if(Conexion!=null) {
Alert alert = new Alert(AlertType.INFORMATION);
alert.setTitle("Informacion");
alert.setHeaderText(null);
alert.setContentText("Conexion Exitosa");
alert.showAndWait();
}
}
public void insertaregistro() {
Connection conn=null;
try {
conn = DriverManager.getConnection("jdbc:sqlserver://localhost:1433;databaseName=prueba", "sa", "milkas87");
Statement insertar=conn.createStatement();
insertar.executeUpdate("insert into cliente (nombre, apellido,fecha_nacimiento) values ('"+nm.getText()+"', '"+ap.getText()+"', '"+((TextField)mifecha.getEditor()).getText()+"')");
if(conn!=null) {
Alert alert = new Alert(AlertType.INFORMATION);
alert.setTitle("Informacion");
alert.setHeaderText(null);
alert.setContentText("Registro Insertado correctamente");
alert.showAndWait();
}
} catch (SQLException e) {
e.printStackTrace();
}
seleccionaregistros();
}
public void seleccionaregistros() {
ObservableList <Persona> data =FXCollections.observableArrayList();
Connection conn=null;{
try {
conn = DriverManager.getConnection("jdbc:sqlserver://localhost:1433;databaseName=prueba", "sa", "milkas87");
Statement mostrar=conn.createStatement();
ResultSet rs;
rs= mostrar.executeQuery("select * from cliente");
while ( rs.next() )
{
data.add(new Persona(
rs.getString("nombre"),
rs.getString("apellido"),
rs.getInt("id"),
rs.getDate(4).toInstant().atZone(ZoneId.systemDefault()).toLocalDate())
);
tablacliente.setItems(data);
}
} catch (SQLException e) {
e.printStackTrace();
}
}
}
public void seleccionanombre() {
String nombre = bq.getText();
ObservableList <Persona> busqueda =FXCollections.observableArrayList();
String consulta=" select * from cliente where nombre like ? " ;
Connection conn=null;{
try {
conn = DriverManager.getConnection("jdbc:sqlserver://localhost:1433;databaseName=prueba", "sa", "milkas87");
PreparedStatement ps =conn.prepareStatement(consulta);
ps.setString(1, nombre);
ResultSet rs =ps.executeQuery();
while ( rs.next() )
{
busqueda.add(new Persona(
rs.getString("nombre"),
rs.getString("apellido"),
rs.getInt("id"),
rs.getDate(4).toInstant().atZone(ZoneId.systemDefault()).toLocalDate())
);
}
} catch (SQLException e) {
e.printStackTrace();
}
tablacliente.setItems(busqueda);
}
}
public void seleccionapellido() {
String apellido = bqa.getText();
ObservableList <Persona> busquedape =FXCollections.observableArrayList();
String consulta=" select * from cliente where apellido like ? " ;
Connection conn=null;{
try {
conn = DriverManager.getConnection("jdbc:sqlserver://localhost:1433;databaseName=prueba", "sa", "milkas87");
PreparedStatement ps =conn.prepareStatement(consulta);
ps.setString(1, apellido);
ResultSet rs =ps.executeQuery();
while ( rs.next() )
{
busquedape.add(new Persona(
rs.getString("nombre"),
rs.getString("apellido"),
rs.getInt("id"),
rs.getDate(4).toInstant().atZone(ZoneId.systemDefault()).toLocalDate())
);
}
} catch (SQLException e) {
e.printStackTrace();
}
tablacliente.setItems(busquedape);
}
}
public void inicializacombo() {
try {
FXMLLoader fxmlLoader = new FXMLLoader();
fxmlLoader.setLocation(getClass().getResource("VistaCombo.fxml"));
Scene scene = new Scene(fxmlLoader.load());
Stage stage = new Stage();
stage.setTitle("Datos Del Cliente");
stage.setScene(scene);
stage.show();
} catch (IOException e) {
}
}
public void limpiatexto() {
nm.clear();
ap.clear();
bq.clear();
bqa.clear();
borrar.clear();
}
public void cargarconexion() {
btn.setOnAction(e->{
conexion();
});
}
public void cargarregistro() {
mtn.setOnAction(e->{
insertaregistro();
});
}
public void borrarcasillatexto() {
lmp.setOnAction(e->{
limpiatexto();
});
}
public void mostrartodo() {
mts.setOnAction(e->{
seleccionaregistros();
});
}
public void buscanm() {
bqd.setOnAction(e->{
seleccionanombre();
});
}
public void buscaape() {
bqape.setOnAction(e->{
seleccionapellido();
});
}
public void borraregistroid() {
botonborrar.setOnAction(e->{
borraregistro();
});
}
}
here is my Persona Class Code
package application;
import java.time.LocalDate;
import javafx.beans.property.IntegerProperty;
import javafx.beans.property.ObjectProperty;
import javafx.beans.property.SimpleIntegerProperty;
import javafx.beans.property.SimpleObjectProperty;
import javafx.beans.property.SimpleStringProperty;
import javafx.beans.property.StringProperty;
public class Persona {
private StringProperty nombres;
private StringProperty apellidos;
private IntegerProperty id_cliente;
private ObjectProperty <LocalDate>fechacliente;
public Persona (String nombres, String apellidos, Integer id_cliente, LocalDate fechacliente) {
this.nombres= new SimpleStringProperty (nombres);
this.apellidos= new SimpleStringProperty ( apellidos);
this.id_cliente=new SimpleIntegerProperty (id_cliente);
this.fechacliente= new SimpleObjectProperty<>(fechacliente);
}
public LocalDate getFechaCliente() {
return fechacliente.get();
}
public void setFechaCliente(LocalDate fechacliente) {
this.fechacliente = new SimpleObjectProperty<>(fechacliente);
}
public ObjectProperty<LocalDate> fechaClienteProperty() {
return fechacliente;
}
public String getNombres() {
return nombres.get();
}
public void setNombres(String nombres) {
this.nombres=new SimpleStringProperty (nombres);
}
public String getApellidos() {
return apellidos.get();
}
public void setApellidos(String apellidos) {
this.apellidos=new SimpleStringProperty ( apellidos);
}
public Integer getId_cliente() {
return id_cliente.get();
}
public void setid_cliente(Integer id_cliente) {
this.id_cliente=new SimpleIntegerProperty (id_cliente);
}
}
here is my FXML code
<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.scene.control.*?>
<?import java.lang.*?>
<?import javafx.scene.layout.*?>
<?import javafx.scene.layout.AnchorPane?>
<AnchorPane prefHeight="497.0" prefWidth="943.0" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1" fx:controller="application.ConexionController">
<children>
<Pane layoutY="-3.0" prefHeight="605.0" prefWidth="1084.0">
<children>
<Button fx:id="btn" layoutX="145.0" layoutY="109.0" mnemonicParsing="false" onAction="#cargarconexion" prefHeight="46.0" prefWidth="117.0" text="Prueba Conexion" />
<Button fx:id="mtn" layoutX="15.0" layoutY="183.0" mnemonicParsing="false" onAction="#cargarregistro" prefHeight="46.0" prefWidth="117.0" text="Inserta Registro" />
<Label layoutX="14.0" layoutY="279.0" prefHeight="17.0" prefWidth="105.0" text="NOMBRES" />
<Label layoutX="15.0" layoutY="327.0" prefHeight="17.0" prefWidth="79.0" text="APELLIDOS" />
<TextField fx:id="nm" layoutX="159.0" layoutY="275.0" prefHeight="25.0" prefWidth="149.0" />
<TextField fx:id="ap" layoutX="159.0" layoutY="323.0" />
<Button fx:id="lmp" layoutX="159.0" layoutY="484.0" mnemonicParsing="false" onAction="#borrarcasillatexto" prefHeight="25.0" prefWidth="150.0" text="Limpiar Texto" />
<TableView fx:id="tablacliente" layoutX="355.0" layoutY="15.0" prefHeight="383.0" prefWidth="696.0">
<columns>
<TableColumn fx:id="clienteid" prefWidth="159.0" text="ID" />
<TableColumn fx:id="nombrescol" prefWidth="159.0" text="NOMBRES" />
<TableColumn fx:id="apellidoscol" minWidth="0.0" prefWidth="169.0" text="APELLIDOS" />
<TableColumn fx:id="fechacli" prefWidth="235.0" text="FECHA DE NACIMIENTO" />
</columns>
</TableView>
<Button fx:id="mts" layoutX="15.0" layoutY="109.0" mnemonicParsing="false" onAction="#mostrartodo" prefHeight="46.0" prefWidth="117.0" text="Mostrar" />
<TextField fx:id="bq" layoutX="554.0" layoutY="417.0" prefHeight="25.0" prefWidth="149.0" />
<Button fx:id="bqd" layoutX="758.0" layoutY="417.0" mnemonicParsing="false" onAction="#buscanm" prefHeight="25.0" prefWidth="155.0" text="BUSCAR NOMBRE" />
<Button fx:id="bqape" layoutX="758.0" layoutY="458.0" mnemonicParsing="false" onAction="#buscaape" prefHeight="25.0" prefWidth="155.0" text="BUSCAR POR APELLIDO" />
<TextField fx:id="bqa" layoutX="554.0" layoutY="458.0" />
<ComboBox layoutX="159.0" layoutY="430.0" prefWidth="150.0" />
<Label layoutX="15.0" layoutY="434.0" prefHeight="17.0" prefWidth="55.0" text="GENERO" />
<MenuBar fx:id="menucombo" layoutY="3.0">
<menus>
<Menu mnemonicParsing="false" text="Agregar">
<items>
<MenuItem mnemonicParsing="false" onAction="#inicializacombo" text="Datos Cliente" />
</items>
</Menu>
</menus>
</MenuBar>
<Button fx:id="botonborrar" layoutX="758.0" layoutY="507.0" mnemonicParsing="false" onAction="#borraregistroid" prefHeight="25.0" prefWidth="155.0" text="BORRAR REGISTRO" />
<TextField fx:id="borrar" layoutX="554.0" layoutY="507.0" />
<DatePicker fx:id="mifecha" layoutX="158.0" layoutY="371.0" prefHeight="25.0" prefWidth="150.0" />
<Label layoutX="15.0" layoutY="375.0" prefHeight="17.0" prefWidth="150.0" text="FECHA DE NACIMIENTO" />
</children>
</Pane>
</children>
</AnchorPane>
this is the error in the console
javafx.fxml.LoadException:
/C:/Users/ROA%20PC/eclipse-workspace/Conexion/bin/application/Vista.fxml
at javafx.fxml.FXMLLoader.constructLoadException(FXMLLoader.java:2601)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2579)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2441)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3214)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3175)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3148)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3124)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3104)
at javafx.fxml.FXMLLoader.load(FXMLLoader.java:3097)
at application.Main.start(Main.java:23)
at com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$162(LauncherImpl.java:863)
at com.sun.javafx.application.PlatformImpl.lambda$runAndWait$175(PlatformImpl.java:326)
at com.sun.javafx.application.PlatformImpl.lambda$null$173(PlatformImpl.java:295)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.application.PlatformImpl.lambda$runLater$174(PlatformImpl.java:294)
at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at com.sun.glass.ui.win.WinApplication.lambda$null$148(WinApplication.java:191)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.UnsupportedOperationException
at java.sql.Date.toInstant(Unknown Source)
at application.ConexionController.seleccionaregistros(ConexionController.java:190)
at application.ConexionController.initialize(ConexionController.java:92)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2548)
... 17 more
Exception in Application start method
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at com.sun.javafx.application.LauncherImpl.launchApplicationWithArgs(LauncherImpl.java:389)
at com.sun.javafx.application.LauncherImpl.launchApplication(LauncherImpl.java:328)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at sun.launcher.LauncherHelper$FXHelper.main(Unknown Source)
Caused by: java.lang.RuntimeException: Exception in Application start method
at com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:917)
at com.sun.javafx.application.LauncherImpl.lambda$launchApplication$155(LauncherImpl.java:182)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.NullPointerException: Root cannot be null
at javafx.scene.Scene.<init>(Scene.java:336)
at javafx.scene.Scene.<init>(Scene.java:235)
at application.Main.start(Main.java:27)
at com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$162(LauncherImpl.java:863)
at com.sun.javafx.application.PlatformImpl.lambda$runAndWait$175(PlatformImpl.java:326)
at com.sun.javafx.application.PlatformImpl.lambda$null$173(PlatformImpl.java:295)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.application.PlatformImpl.lambda$runLater$174(PlatformImpl.java:294)
at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at com.sun.glass.ui.win.WinApplication.lambda$null$148(WinApplication.java:191)
... 1 more
Exception running application application.Main

Answer 1

I had to adapt your code to make it work without connecting to the DB. This changes will make it work.
In your Persona class:
Change your constructor to:
public Persona (String nombres, String apellidos, Integer id_cliente, LocalDate fechacliente) {
this.nombres= new SimpleStringProperty (nombres);
this.apellidos= new SimpleStringProperty ( apellidos);
this.id_cliente=new SimpleIntegerProperty (id_cliente);
this.fechacliente= new SimpleObjectProperty<>(fechacliente);
}
Change the getter and setter for fechacliente:
public LocalDate getFechaCliente() {
return fechacliente.get();
}
public void setFechaCliente(LocalDate fechacliente) {
this.fechacliente = new SimpleObjectProperty<>(fechacliente);
}
Add fechaClienteProperty:
public ObjectProperty<LocalDate> fechaClienteProperty() {
return fechacliente;
}
In your ConexionController change the CellValueFactory and CellFactory to:
fechacli.setCellValueFactory(cellData -> cellData.getValue().fechaClienteProperty());
DateTimeFormatter formatter = DateTimeFormatter.ofPattern("dd/MMyyyy");
fechacli.setCellFactory(column -> {
return new TableCell<Persona, LocalDate>() {
#Override
protected void updateItem(LocalDate item, boolean empty) {
super.updateItem(item, empty);
if (item == null || empty) {
setText(null);
} else {
setText(formatter.format(item));
}
}
};
});
With this corrections it works. Hope this helps.