如何解决onEditCommit事件的类型不匹配错误？
武卓
问题内容：
问题答案：
我已经在Fxml中使用onEditCommit事件在用户编辑数据后检索数据。
FXML代码-：
<TableColumn editable="true" maxWidth="5000.0" minWidth="10.0" onEditCancel="#editEnd_0" onEditStart="#editStart_0" onEditCommit="#editCommit_0" prefWidth="136.0" text="Description Of Goods" fx:id="value_0" />
实现了onEditCommit事件-：
public void editCommit_0(CellEditEvent<Record,String> event)
{
System.out.println("Value edited: On edit new value is "+event.getNewValue());
}
错误-：
Exception in thread "JavaFX Application Thread" java.lang.IllegalArgumentException: argument type mismatch
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at sun.reflect.misc.Trampoline.invoke(MethodUtil.java:71)
at sun.reflect.GeneratedMethodAccessor2.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at sun.reflect.misc.MethodUtil.invoke(MethodUtil.java:275)
at javafx.fxml.FXMLLoader$MethodHandler.invoke(FXMLLoader.java:1763)
at javafx.fxml.FXMLLoader$ControllerMethodEventHandler.handle(FXMLLoader.java:1651)
at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:86)
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:238)
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
at com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:49)
at javafx.event.Event.fireEvent(Event.java:204)
at javafx.scene.control.TableCell.commitEdit(TableCell.java:335)
at javafx.scene.control.cell.CellUtils$4.handle(CellUtils.java:252)
at javafx.scene.control.cell.CellUtils$4.handle(CellUtils.java:243)
at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:86)
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:238)
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191)
at com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
at com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:54)
at javafx.event.Event.fireEvent(Event.java:204)
at javafx.scene.Scene$KeyHandler.process(Scene.java:3949)
at javafx.scene.Scene$KeyHandler.access$2100(Scene.java:3896)
at javafx.scene.Scene.impl_processKeyEvent(Scene.java:2036)
at javafx.scene.Scene$ScenePeerListener.keyEvent(Scene.java:2493)
at com.sun.javafx.tk.quantum.GlassViewEventHandler$KeyEventNotification.run(GlassViewEventHandler.java:170)
at com.sun.javafx.tk.quantum.GlassViewEventHandler$KeyEventNotification.run(GlassViewEventHandler.java:123)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.tk.quantum.GlassViewEventHandler.handleKeyEvent(GlassViewEventHandler.java:197)
at com.sun.glass.ui.View.handleKeyEvent(View.java:517)
at com.sun.glass.ui.View.notifyKey(View.java:927)
at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at com.sun.glass.ui.win.WinApplication.access$300(WinApplication.java:39)
at com.sun.glass.ui.win.WinApplication$4$1.run(WinApplication.java:112)
at java.lang.Thread.run(Thread.java:745)
完整代码-：
Controller.java
/*
* To change this license header, choose License Headers in Project Properties.
* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/
package com.techi.calco.transaction.controller;
import com.techi.calco.Main;
import com.techi.calco.model.ItemGroup;
import com.techi.calco.util.EditingCell;
import com.techi.calco.model.Record;
import com.techi.calco.service.ItemService;
import com.techi.calco.util.ButtonCell;
import java.net.URL;
import java.util.Random;
import java.util.ResourceBundle;
import javafx.beans.property.IntegerProperty;
import javafx.beans.property.SimpleBooleanProperty;
import javafx.beans.property.SimpleIntegerProperty;
import javafx.beans.value.ObservableValue;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.event.ActionEvent;
import javafx.fxml.FXML;
import javafx.fxml.Initializable;
import javafx.scene.control.Button;
import javafx.scene.control.TableCell;
import javafx.scene.control.TableColumn;
import javafx.scene.control.TableView;
import javafx.scene.control.TreeTableColumn.CellEditEvent;
import javafx.scene.control.cell.PropertyValueFactory;
import javafx.scene.control.cell.TextFieldTableCell;
import javafx.util.Callback;
import np.com.ngopal.control.AutoFillTextBox;
/**
* FXML Controller class
*
* @author Vipin Bhatt
*/
public class SaleInvoiceController implements Initializable {
public static ObservableList<Record> data = FXCollections.observableArrayList();
//public static ObservableList<String> data = FXCollections.observableArrayList();
// Implemented 25 6
ObservableList<String> data5;
private ObservableList<ItemGroup> data2 = FXCollections.observableArrayList();
ItemService itemService = itemService=(ItemService)Main.applicationContext.getBean("itemService");
private ObservableList<ItemGroup> vatData = FXCollections.observableArrayList();
String[] smooth;
String[] items;
static int sk5;
@FXML
private TableView<Record> tableView ;
//private TableView<String> tableView ;
@FXML
private AutoFillTextBox autoFill;
@FXML
private Button addNew,btnNew;
static Random random = new Random();
@FXML
//private TableColumn col_id,value_0,value_1,value_2,value_3,value_4 ,col_Action,sale_invoiceNo;
private TableColumn<Record, String> col_id,value_0,value_1,value_2,value_3,value_4 ,col_Action,sale_invoiceNo;
//index for delete Item
private IntegerProperty index = new SimpleIntegerProperty();
/**
* Initializes the controller class.
*/
@Override
public void initialize(URL url, ResourceBundle rb) {
// TODO
System.out.println("Get text saleinvoice--->"+btnNew.getText());
tableView.setEditable(true);
index.set(-1);
Callback<TableColumn, TableCell> cellFactory =
new Callback<TableColumn, TableCell>()
{
@Override
public TableCell call(TableColumn p) {
return new EditingCell();
}
};
// searchAction("a");
col_id.setCellValueFactory(new PropertyValueFactory<Record, String>("id"));
//col_id.setCellValueFactory(new PropertyValueFactory<String, String>("id"));
value_0.setCellValueFactory(new PropertyValueFactory<Record, String>("value_0"));
//value_0.setCellValueFactory(new PropertyValueFactory<String, String>("value_0"));
//value_0.setCellValueFactory(new PropertyValueFactory<ItemService, String>("itemGroupName"));
//value_1.setCellValueFactory(new PropertyValueFactory<Record, Integer>("value_1"));
// value_2.setCellValueFactory(new PropertyValueFactory<Record, String>("value_2"));
//value_3.setCellValueFactory(new PropertyValueFactory<Record, String>("value_3"));
//value_4.setCellValueFactory(new PropertyValueFactory<Record, String>("value_4"));
System.out.println("\ngettiing Cell value factore-:" +value_0.getCellValueFactory());
/*
col_Action.setCellValueFactory(
new Callback<TableColumn.CellDataFeatures<Record, Boolean>,
ObservableValue<Boolean>>() {
@Override
public ObservableValue<Boolean> call(TableColumn.CellDataFeatures<Record, Boolean> p) {
return new SimpleBooleanProperty(p.getValue() != null);
}
});
col_Action.setCellFactory(
new Callback<TableColumn<Record, Boolean>, TableCell<Record, Boolean>>() {
@Override
public TableCell<Record, Boolean> call(TableColumn<Record, Boolean> p) {
return new ButtonCell();
}
});
*/
//value_0.setCellFactory(cellFactory);
//value_1.setCellFactory(cellFactory);
//value_2.setCellFactory(cellFactory);
//value_3.setCellFactory(cellFactory);
value_0.setCellFactory(TextFieldTableCell.forTableColumn()) ;
//value_1.setCellFactory(TextFieldTableCell.forTableColumn()) ;
// value_2.setCellFactory(TextFieldTableCell.forTableColumn()) ;
//value_3.setCellFactory(TextFieldTableCell.forTableColumn()) ;
tableView.setItems(data);
searchAction("a");
}
//Implemented 25 6
public String searchAction(String value)
{
System.out.println("Inside searchAction() SaleInvoiceController inside transaction.controller->"+itemService);
//itemService = new ItemService();
data2=itemService.searchAction(value);
String quick = data2.get(0).getItemGroupName();
System.out.println("Checking quick ->"+quick);
String[] smooth = new String[data2.size()];
for (int i=0;i<data2.size();i++){
// smooth[i] = data2.get(i).getItemGroupName();
smooth[i] = data2.get(i).getItemGroupName()+"-"+data2.get(i).getId();
}
for(String str : smooth)
{
System.out.println("-------"+str);
}
data5 = FXCollections.observableArrayList(smooth);
autoFill.setData(data5);
//
return value;
/*
data2 = itemService.searchAction(value);
String quick = data2.get(0).getItemGroupName();
System.out.println("Checking quick ->" + quick);
smooth = new String[data.size()];
for (int i = 0; i < data.size(); i++) {
smooth[i] = data2.get(i).getItemGroupName()+"-"+data2.get(i).getId();
}
for (String str : smooth) {
System.out.println("-------" + str);
}
data5 = FXCollections.observableArrayList(smooth);
autoFill.setData(data5);
return value;
*/
}
public void editStart_0()
{
String a = tableView.getSelectionModel().getSelectedItem().getValue_0();
System.out.println("Getting Sales column data before Update -"+a);
}
public void editEnd_0()
{
String a = tableView.getSelectionModel().getSelectedItem().getValue_0();
System.out.println("Getting Sales column data after Update -"+a);
}
public void editCommit_0(CellEditEvent<Record,String> event)
{
// System.out.println("Value edited: On edit new value is "+event.getNewValue());
}
public void newRecord(ActionEvent event)
{
System.out.println("Hello Add NEw Record");
//generate new Record with random number
int newId = data.size()+1;
/*
Record newRec = new Record(
newId,
random.nextInt(100),
random.nextInt(100),
random.nextInt(100),
random.nextInt(100),
random.nextInt(100));
data.add(newRec);
*/
Record newRec = new Record(
newId,"ram1","ram2","ram3","ram4","ram5");
data.add(newRec);
System.out.println("LIST SIZE---->"+SaleInvoiceController.data.size());
}
public void addNew(ActionEvent event)
{
System.out.println("addNew");
}
}
Record.java（获取设置程序）
private int id;
private String value_0;
private String value_1;
private String value_2;
private String value_3;
private String value_4;
public Record(int i,String a, String b, String c, String d, String e)
{
this.id = i;
this.value_0 = a;
this.value_1 = b;
this.value_2=c;
this.value_3=d;
this.value_4 = e;
}
/**
* @return the id
*/
public int getId() {
return id;
}
/**
* @param id the id to set
*/
public void setId(int id) {
this.id = id;
}
/**
* @return the value_0
*/
public String getValue_0() {
return value_0;
}
/**
* @param value_0 the value_0 to set
*/
public void setValue_0(String value_0) {
this.value_0 = value_0;
}
/**
* @return the value_1
*/
public String getValue_1() {
return value_1;
}
/**
* @param value_1 the value_1 to set
*/
public void setValue_1(String value_1) {
this.value_1 = value_1;
}
/**
* @return the value_2
*/
public String getValue_2() {
return value_2;
}
/**
* @param value_2 the value_2 to set
*/
public void setValue_2(String value_2) {
this.value_2 = value_2;
}
/**
* @return the value_3
*/
public String getValue_3() {
return value_3;
}
/**
* @param value_3 the value_3 to set
*/
public void setValue_3(String value_3) {
this.value_3 = value_3;
}
/**
* @return the value_4
*/
public String getValue_4() {
return value_4;
}
/**
* @param value_4 the value_4 to set
*/
public void setValue_4(String value_4) {
this.value_4 = value_4;
}
}
请帮助我解决此错误，应在onEditCommit事件实现中放置哪种类型。我已经打印了列单元格值工厂
value_0.getCellValueFactory()
并得到
javafx.scene.control.cell.PropertyValueFactory@5941ae6a
EditingCell.java-：
/*
* To change this license header, choose License Headers in Project Properties.
* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/
package com.techi.calco.util;
import javafx.event.EventHandler;
import javafx.scene.chart.XYChart;
import javafx.scene.control.ContentDisplay;
import javafx.scene.control.TableCell;
import javafx.scene.control.TextField;
import javafx.scene.input.KeyCode;
import javafx.scene.input.KeyEvent;
/**
*
* @author Vipin Bhatt
*/
/*
public class EditingCell extends TableCell<XYChart.Data, Number> {
private TextField textField;
public EditingCell() {}
@Override
public void startEdit() {
System.out.println("StarEdit Called when");
super.startEdit();
System.out.println("Editing cell");
if (textField == null) {
createTextField();
}
setGraphic(textField);
setContentDisplay(ContentDisplay.GRAPHIC_ONLY);
textField.selectAll();
}
@Override
public void cancelEdit() {
super.cancelEdit();
setText(String.valueOf(getItem()));
setContentDisplay(ContentDisplay.TEXT_ONLY);
}
@Override
public void updateItem(Number item, boolean empty) {
super.updateItem(item, empty);
if (empty) {
setText(null);
setGraphic(null);
} else {
if (isEditing()) {
if (textField != null) {
textField.setText(getString());
}
setGraphic(textField);
setContentDisplay(ContentDisplay.GRAPHIC_ONLY);
} else {
setText(getString());
setContentDisplay(ContentDisplay.TEXT_ONLY);
}
}
}
private void createTextField() {
textField = new TextField(getString());
textField.setMinWidth(this.getWidth() - this.getGraphicTextGap()*2);
textField.setOnKeyPressed(new EventHandler<KeyEvent>() {
@Override
public void handle(KeyEvent t) {
if (t.getCode() == KeyCode.ENTER) {
commitEdit(Integer.parseInt(textField.getText()));
} else if (t.getCode() == KeyCode.ESCAPE) {
cancelEdit();
}
}
});
}
private String getString() {
return getItem() == null ? "" : getItem().toString();
}
}
*/
public class EditingCell extends TableCell<XYChart.Data, Number> {
private TextField textField;
public EditingCell() {}
@Override
public void startEdit() {
super.startEdit();
if (textField == null) {
createTextField();
}
setGraphic(textField);
setContentDisplay(ContentDisplay.GRAPHIC_ONLY);
textField.selectAll();
}
@Override
public void cancelEdit() {
super.cancelEdit();
setText(String.valueOf(getItem()));
setContentDisplay(ContentDisplay.TEXT_ONLY);
}
@Override
public void updateItem(Number item, boolean empty) {
super.updateItem(item, empty);
if (empty) {
setText(null);
setGraphic(null);
} else {
if (isEditing()) {
if (textField != null) {
textField.setText(getString());
}
setGraphic(textField);
setContentDisplay(ContentDisplay.GRAPHIC_ONLY);
} else {
setText(getString());
setContentDisplay(ContentDisplay.TEXT_ONLY);
}
}
}
private void createTextField() {
textField = new TextField(getString());
textField.setMinWidth(this.getWidth() - this.getGraphicTextGap()*2);
textField.setOnKeyPressed(new EventHandler<KeyEvent>() {
@Override
public void handle(KeyEvent t) {
if (t.getCode() == KeyCode.ENTER) {
commitEdit(Integer.parseInt(textField.getText()));
} else if (t.getCode() == KeyCode.ESCAPE) {
cancelEdit();
}
}
});
}
private String getString() {
return getItem() == null ? "" : getItem().toString();
}
}
问题答案：
您的事件处理程序类型对我来说不错。我的猜测是类型不匹配正在其他地方发生。
样品
这是一个示例，演示了使用FXML时如何设置提交事件处理程序。为冗长而道歉，这就是FXML的方式。
该示例中的编辑提交处理程序为：
@FXML
void commitValue(TableColumn.CellEditEvent<Singular, String> event) {
System.out.println("Commit: " + event.getNewValue());
}
其中Singluar只是该示例在TableView中使用的记录类的名称。
commit / CommitController.java
import javafx.beans.property.SimpleStringProperty;
import javafx.beans.property.StringProperty;
import javafx.fxml.FXML;
import javafx.scene.control.TableColumn;
import javafx.scene.control.TableView;
import javafx.scene.control.cell.PropertyValueFactory;
import javafx.scene.control.cell.TextFieldTableCell;
public class CommitController {
@FXML
private TableView<Singular> table;
@FXML
private TableColumn<Singular, String> value;
@FXML
void commitValue(TableColumn.CellEditEvent<Singular, String> event) {
System.out.println("Commit: " + event.getNewValue());
}
public void initialize() {
value.setCellFactory(TextFieldTableCell.forTableColumn());
value.setCellValueFactory(new PropertyValueFactory<>("value"));
value.setEditable(true);
table.getItems().setAll(
new Singular("enie"),
new Singular("meenie"),
new Singular("minie"),
new Singular("moe"),
new Singular("just commit!")
);
table.setEditable(true);
}
public static class Singular {
private StringProperty value = new SimpleStringProperty();
public Singular(String value) {
this.value.setValue(value);
}
public StringProperty valueProperty() {
return value;
}
}
}
commit / CommitmentApp.java
import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.stage.Stage;
import java.io.IOException;
public class CommitmentApp extends Application {
@Override
public void start(Stage stage) throws IOException {
stage.setScene(new Scene(createContent()));
stage.show();
}
private Parent createContent() throws IOException {
FXMLLoader loader = new FXMLLoader();
return loader.load(
getClass().getResourceAsStream("commit.fxml")
);
}
public static void main(String[] args) {
launch(args);
}
}
commit.fxml
<?import javafx.scene.control.TableColumn?>
<?import javafx.scene.control.TableView?>
<TableView fx:id="table" maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="130.0" prefWidth="113.0" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1" fx:controller="commit.CommitController">
<columns>
<TableColumn fx:id="value" onEditCommit="#commitValue" prefWidth="85.0" text="C1" />
</columns>
</TableView>
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