在剪贴板 javaFx 中保存 table
Save table in clipboad javaFx
我开始使用 JavaFx 进行开发,我有一个项目,我想知道是否可以在 javaFx 中制作 table 的 "copy-paste"。我的意思是,我有一个包含一些数据的 TableView,只想将其保存在剪贴板中以将其导出到 Microsoft word 或任何其他文本编辑器。这可能吗?我该怎么做?谢谢
从 table 数据中获取您想要的文本,格式适当:然后您就可以
ClipboardContent content = new ClipboardContent();
content.putString(tableData);
Clipboard.getSystemClipboard().setContent(content);
这是一个关于如何 copy/paste 使用 TableView 的示例。您必须根据 属性 类型扩展 class。 Copy/Paste 从和到 e。 G。 Excel 保留 table 结构,因为它支持代码中使用的 Ascii 空格 (\n, \t)。
一个改进的解决方案是使用混合剪贴板内容,以便将 ClipboardContent 结构化为 html。然后,您将在 Word 等程序中获得 table 结构。
TableCopyPasteCellsDemo.java
import javafx.application.Application;
import javafx.beans.property.IntegerProperty;
import javafx.beans.property.SimpleIntegerProperty;
import javafx.beans.property.SimpleStringProperty;
import javafx.beans.property.StringProperty;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.geometry.Insets;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.scene.control.SelectionMode;
import javafx.scene.control.TableColumn;
import javafx.scene.control.TableView;
import javafx.scene.control.cell.PropertyValueFactory;
import javafx.scene.layout.BorderPane;
import javafx.scene.layout.VBox;
import javafx.scene.text.Text;
import javafx.stage.Stage;
public class TableCopyPasteCellsDemo extends Application {
private final ObservableList<Person> data = FXCollections.observableArrayList(new Person("Jacob", "Smith", 18), new Person("Isabella", "Johnson", 19), new Person("Ethan", "Williams", 20), new Person("Michael", "Brown", 21));
public static void main(String[] args) {
launch(args);
}
@Override
public void start(Stage stage) {
stage.setWidth(500);
stage.setHeight(550);
// create table columns
TableColumn<Person, String> firstNameCol = new TableColumn<Person, String>("First Name");
firstNameCol.setMinWidth(100);
firstNameCol.setCellValueFactory(new PropertyValueFactory<Person, String>("firstName"));
// firstNameCol.setVisible(false); // hide column for testing view/model indices
TableColumn<Person, String> lastNameCol = new TableColumn<Person, String>("Last Name");
lastNameCol.setMinWidth(100);
lastNameCol.setCellValueFactory(new PropertyValueFactory<Person, String>("lastName"));
TableColumn<Person, Integer> ageCol = new TableColumn<Person, Integer>("Age");
ageCol.setMinWidth(60);
ageCol.setCellValueFactory(new PropertyValueFactory<Person, Integer>("age"));
TableView<Person> table = new TableView<>();
table.setPlaceholder(new Text("No content in table"));
table.setItems(data);
table.getColumns().addAll(firstNameCol, lastNameCol, ageCol);
final VBox vbox = new VBox();
vbox.setSpacing(5);
vbox.setPadding(new Insets(10, 10, 10, 10));
BorderPane borderPane = new BorderPane();
borderPane.setCenter(table);
vbox.getChildren().addAll(borderPane);
vbox.getChildren().add( new Label( "Select cells and press CTRL+C. Paste the data into Excel or Notepad"));
Scene scene = new Scene(vbox);
stage.setScene(scene);
stage.show();
// enable multi-selection
table.getSelectionModel().setCellSelectionEnabled(true);
table.getSelectionModel().setSelectionMode(SelectionMode.MULTIPLE);
// enable copy/paste
TableUtils.installCopyPasteHandler(table);
}
public static class Person {
private final StringProperty firstName;
private final StringProperty lastName;
private final IntegerProperty age;
private Person(String fName, String lName, Integer age) {
this.firstName = new SimpleStringProperty(fName);
this.lastName = new SimpleStringProperty(lName);
this.age = new SimpleIntegerProperty(age);
}
public final StringProperty firstNameProperty() {
return this.firstName;
}
public final java.lang.String getFirstName() {
return this.firstNameProperty().get();
}
public final void setFirstName(final java.lang.String firstName) {
this.firstNameProperty().set(firstName);
}
public final StringProperty lastNameProperty() {
return this.lastName;
}
public final java.lang.String getLastName() {
return this.lastNameProperty().get();
}
public final void setLastName(final java.lang.String lastName) {
this.lastNameProperty().set(lastName);
}
public final IntegerProperty ageProperty() {
return this.age;
}
public final int getAge() {
return this.ageProperty().get();
}
public final void setAge(final int age) {
this.ageProperty().set(age);
}
}
}
TableUtils.java
import java.text.NumberFormat;
import java.text.ParseException;
import java.util.StringTokenizer;
import javafx.beans.property.DoubleProperty;
import javafx.beans.property.IntegerProperty;
import javafx.beans.property.StringProperty;
import javafx.beans.value.ObservableValue;
import javafx.collections.ObservableList;
import javafx.event.EventHandler;
import javafx.scene.control.TableColumn;
import javafx.scene.control.TablePosition;
import javafx.scene.control.TableView;
import javafx.scene.input.Clipboard;
import javafx.scene.input.ClipboardContent;
import javafx.scene.input.KeyCode;
import javafx.scene.input.KeyCodeCombination;
import javafx.scene.input.KeyCombination;
import javafx.scene.input.KeyEvent;
public class TableUtils {
private static NumberFormat numberFormatter = NumberFormat.getNumberInstance();
/**
* Install the keyboard handler:
* + CTRL + C = copy to clipboard
* + CTRL + V = paste to clipboard
* @param table
*/
public static void installCopyPasteHandler(TableView<?> table) {
// install copy/paste keyboard handler
table.setOnKeyPressed(new TableKeyEventHandler());
}
/**
* Copy/Paste keyboard event handler.
* The handler uses the keyEvent's source for the clipboard data. The source must be of type TableView.
*/
public static class TableKeyEventHandler implements EventHandler<KeyEvent> {
KeyCodeCombination copyKeyCodeCompination = new KeyCodeCombination(KeyCode.C, KeyCombination.CONTROL_ANY);
KeyCodeCombination pasteKeyCodeCompination = new KeyCodeCombination(KeyCode.V, KeyCombination.CONTROL_ANY);
public void handle(final KeyEvent keyEvent) {
if (copyKeyCodeCompination.match(keyEvent)) {
if( keyEvent.getSource() instanceof TableView) {
// copy to clipboard
copySelectionToClipboard( (TableView<?>) keyEvent.getSource());
// event is handled, consume it
keyEvent.consume();
}
}
else if (pasteKeyCodeCompination.match(keyEvent)) {
if( keyEvent.getSource() instanceof TableView) {
// copy to clipboard
pasteFromClipboard( (TableView<?>) keyEvent.getSource());
// event is handled, consume it
keyEvent.consume();
}
}
}
}
/**
* Get table selection and copy it to the clipboard.
* @param table
*/
public static void copySelectionToClipboard(TableView<?> table) {
StringBuilder plainBuffer = new StringBuilder();
StringBuilder htmlBuffer = new StringBuilder();
ObservableList<TablePosition> positionList = table.getSelectionModel().getSelectedCells();
int prevRow = -1;
htmlBuffer.append( "<html>\n<body>\n<table>\n");
htmlBuffer.append( " <tr>\n");
for (TablePosition position : positionList) {
int viewRow = position.getRow();
int viewCol = position.getColumn();
// determine whether we advance in a row (tab) or a column
// (newline).
if (prevRow == viewRow) {
plainBuffer.append('\t');
} else if (prevRow != -1) {
plainBuffer.append('\n');
htmlBuffer.append( " </tr>\n <tr>\n");
}
// create string from cell
String text = "";
Object observableValue = (Object) table.getVisibleLeafColumn(viewCol).getCellObservableValue( viewRow); // table position gives the view index => we need to operate on the view columns
// null-check: provide empty string for nulls
if (observableValue == null) {
text = "";
}
else if( observableValue instanceof DoubleProperty) { // TODO: handle boolean etc
text = numberFormatter.format( ((DoubleProperty) observableValue).get());
}
else if( observableValue instanceof IntegerProperty) {
text = numberFormatter.format( ((IntegerProperty) observableValue).get());
}
else if( observableValue instanceof StringProperty) {
text = ((StringProperty) observableValue).get();
}
else {
System.out.println("Unsupported observable value: " + observableValue);
}
// add new item to clipboard
plainBuffer.append(text);
htmlBuffer.append( " <td>" + text + "</td>\n");
// remember previous
prevRow = viewRow;
}
htmlBuffer.append( " </tr>\n");
htmlBuffer.append( "</table>\n</body>\n</html>");
// create clipboard content
final ClipboardContent clipboardContent = new ClipboardContent();
clipboardContent.putString(plainBuffer.toString());
clipboardContent.putHtml(htmlBuffer.toString());
System.out.println("ascii:\n" + plainBuffer.toString() + "\n\nhtml:\n" + htmlBuffer.toString());
// set clipboard content
Clipboard.getSystemClipboard().setContent(clipboardContent);
}
public static void pasteFromClipboard( TableView<?> table) {
// abort if there's not cell selected to start with
if( table.getSelectionModel().getSelectedCells().size() == 0) {
return;
}
// get the cell position to start with
TablePosition pasteCellPosition = table.getSelectionModel().getSelectedCells().get(0);
System.out.println("Pasting into cell " + pasteCellPosition);
String pasteString = Clipboard.getSystemClipboard().getString();
System.out.println(pasteString);
int rowClipboard = -1;
StringTokenizer rowTokenizer = new StringTokenizer( pasteString, "\n");
while( rowTokenizer.hasMoreTokens()) {
rowClipboard++;
String rowString = rowTokenizer.nextToken();
StringTokenizer columnTokenizer = new StringTokenizer( rowString, "\t");
int colClipboard = -1;
while( columnTokenizer.hasMoreTokens()) {
colClipboard++;
// get next cell data from clipboard
String clipboardCellContent = columnTokenizer.nextToken();
// calculate the position in the table cell
int rowTable = pasteCellPosition.getRow() + rowClipboard;
int colTable = pasteCellPosition.getColumn() + colClipboard;
// skip if we reached the end of the table
if( rowTable >= table.getItems().size()) {
continue;
}
if( colTable >= table.getColumns().size()) {
continue;
}
// System.out.println( rowClipboard + "/" + colClipboard + ": " + cell);
// get cell
TableColumn tableColumn = table.getVisibleLeafColumn(colTable); // table position gives the view index => we need to operate on the view columns
ObservableValue observableValue = tableColumn.getCellObservableValue(rowTable);
System.out.println( rowTable + "/" + colTable + ": " +observableValue);
// TODO: handle boolean, etc
if( observableValue instanceof DoubleProperty) {
try {
double value = numberFormatter.parse(clipboardCellContent).doubleValue();
((DoubleProperty) observableValue).set(value);
} catch (ParseException e) {
e.printStackTrace();
}
}
else if( observableValue instanceof IntegerProperty) {
try {
int value = NumberFormat.getInstance().parse(clipboardCellContent).intValue();
((IntegerProperty) observableValue).set(value);
} catch (ParseException e) {
e.printStackTrace();
}
}
else if( observableValue instanceof StringProperty) {
((StringProperty) observableValue).set(clipboardCellContent);
} else {
System.out.println("Unsupported observable value: " + observableValue);
}
System.out.println(rowTable + "/" + colTable);
}
}
}
}
我开始使用 JavaFx 进行开发,我有一个项目,我想知道是否可以在 javaFx 中制作 table 的 "copy-paste"。我的意思是,我有一个包含一些数据的 TableView,只想将其保存在剪贴板中以将其导出到 Microsoft word 或任何其他文本编辑器。这可能吗?我该怎么做?谢谢
从 table 数据中获取您想要的文本,格式适当:然后您就可以
ClipboardContent content = new ClipboardContent();
content.putString(tableData);
Clipboard.getSystemClipboard().setContent(content);
这是一个关于如何 copy/paste 使用 TableView 的示例。您必须根据 属性 类型扩展 class。 Copy/Paste 从和到 e。 G。 Excel 保留 table 结构,因为它支持代码中使用的 Ascii 空格 (\n, \t)。
一个改进的解决方案是使用混合剪贴板内容,以便将 ClipboardContent 结构化为 html。然后,您将在 Word 等程序中获得 table 结构。
TableCopyPasteCellsDemo.java
import javafx.application.Application;
import javafx.beans.property.IntegerProperty;
import javafx.beans.property.SimpleIntegerProperty;
import javafx.beans.property.SimpleStringProperty;
import javafx.beans.property.StringProperty;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.geometry.Insets;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.scene.control.SelectionMode;
import javafx.scene.control.TableColumn;
import javafx.scene.control.TableView;
import javafx.scene.control.cell.PropertyValueFactory;
import javafx.scene.layout.BorderPane;
import javafx.scene.layout.VBox;
import javafx.scene.text.Text;
import javafx.stage.Stage;
public class TableCopyPasteCellsDemo extends Application {
private final ObservableList<Person> data = FXCollections.observableArrayList(new Person("Jacob", "Smith", 18), new Person("Isabella", "Johnson", 19), new Person("Ethan", "Williams", 20), new Person("Michael", "Brown", 21));
public static void main(String[] args) {
launch(args);
}
@Override
public void start(Stage stage) {
stage.setWidth(500);
stage.setHeight(550);
// create table columns
TableColumn<Person, String> firstNameCol = new TableColumn<Person, String>("First Name");
firstNameCol.setMinWidth(100);
firstNameCol.setCellValueFactory(new PropertyValueFactory<Person, String>("firstName"));
// firstNameCol.setVisible(false); // hide column for testing view/model indices
TableColumn<Person, String> lastNameCol = new TableColumn<Person, String>("Last Name");
lastNameCol.setMinWidth(100);
lastNameCol.setCellValueFactory(new PropertyValueFactory<Person, String>("lastName"));
TableColumn<Person, Integer> ageCol = new TableColumn<Person, Integer>("Age");
ageCol.setMinWidth(60);
ageCol.setCellValueFactory(new PropertyValueFactory<Person, Integer>("age"));
TableView<Person> table = new TableView<>();
table.setPlaceholder(new Text("No content in table"));
table.setItems(data);
table.getColumns().addAll(firstNameCol, lastNameCol, ageCol);
final VBox vbox = new VBox();
vbox.setSpacing(5);
vbox.setPadding(new Insets(10, 10, 10, 10));
BorderPane borderPane = new BorderPane();
borderPane.setCenter(table);
vbox.getChildren().addAll(borderPane);
vbox.getChildren().add( new Label( "Select cells and press CTRL+C. Paste the data into Excel or Notepad"));
Scene scene = new Scene(vbox);
stage.setScene(scene);
stage.show();
// enable multi-selection
table.getSelectionModel().setCellSelectionEnabled(true);
table.getSelectionModel().setSelectionMode(SelectionMode.MULTIPLE);
// enable copy/paste
TableUtils.installCopyPasteHandler(table);
}
public static class Person {
private final StringProperty firstName;
private final StringProperty lastName;
private final IntegerProperty age;
private Person(String fName, String lName, Integer age) {
this.firstName = new SimpleStringProperty(fName);
this.lastName = new SimpleStringProperty(lName);
this.age = new SimpleIntegerProperty(age);
}
public final StringProperty firstNameProperty() {
return this.firstName;
}
public final java.lang.String getFirstName() {
return this.firstNameProperty().get();
}
public final void setFirstName(final java.lang.String firstName) {
this.firstNameProperty().set(firstName);
}
public final StringProperty lastNameProperty() {
return this.lastName;
}
public final java.lang.String getLastName() {
return this.lastNameProperty().get();
}
public final void setLastName(final java.lang.String lastName) {
this.lastNameProperty().set(lastName);
}
public final IntegerProperty ageProperty() {
return this.age;
}
public final int getAge() {
return this.ageProperty().get();
}
public final void setAge(final int age) {
this.ageProperty().set(age);
}
}
}
TableUtils.java
import java.text.NumberFormat;
import java.text.ParseException;
import java.util.StringTokenizer;
import javafx.beans.property.DoubleProperty;
import javafx.beans.property.IntegerProperty;
import javafx.beans.property.StringProperty;
import javafx.beans.value.ObservableValue;
import javafx.collections.ObservableList;
import javafx.event.EventHandler;
import javafx.scene.control.TableColumn;
import javafx.scene.control.TablePosition;
import javafx.scene.control.TableView;
import javafx.scene.input.Clipboard;
import javafx.scene.input.ClipboardContent;
import javafx.scene.input.KeyCode;
import javafx.scene.input.KeyCodeCombination;
import javafx.scene.input.KeyCombination;
import javafx.scene.input.KeyEvent;
public class TableUtils {
private static NumberFormat numberFormatter = NumberFormat.getNumberInstance();
/**
* Install the keyboard handler:
* + CTRL + C = copy to clipboard
* + CTRL + V = paste to clipboard
* @param table
*/
public static void installCopyPasteHandler(TableView<?> table) {
// install copy/paste keyboard handler
table.setOnKeyPressed(new TableKeyEventHandler());
}
/**
* Copy/Paste keyboard event handler.
* The handler uses the keyEvent's source for the clipboard data. The source must be of type TableView.
*/
public static class TableKeyEventHandler implements EventHandler<KeyEvent> {
KeyCodeCombination copyKeyCodeCompination = new KeyCodeCombination(KeyCode.C, KeyCombination.CONTROL_ANY);
KeyCodeCombination pasteKeyCodeCompination = new KeyCodeCombination(KeyCode.V, KeyCombination.CONTROL_ANY);
public void handle(final KeyEvent keyEvent) {
if (copyKeyCodeCompination.match(keyEvent)) {
if( keyEvent.getSource() instanceof TableView) {
// copy to clipboard
copySelectionToClipboard( (TableView<?>) keyEvent.getSource());
// event is handled, consume it
keyEvent.consume();
}
}
else if (pasteKeyCodeCompination.match(keyEvent)) {
if( keyEvent.getSource() instanceof TableView) {
// copy to clipboard
pasteFromClipboard( (TableView<?>) keyEvent.getSource());
// event is handled, consume it
keyEvent.consume();
}
}
}
}
/**
* Get table selection and copy it to the clipboard.
* @param table
*/
public static void copySelectionToClipboard(TableView<?> table) {
StringBuilder plainBuffer = new StringBuilder();
StringBuilder htmlBuffer = new StringBuilder();
ObservableList<TablePosition> positionList = table.getSelectionModel().getSelectedCells();
int prevRow = -1;
htmlBuffer.append( "<html>\n<body>\n<table>\n");
htmlBuffer.append( " <tr>\n");
for (TablePosition position : positionList) {
int viewRow = position.getRow();
int viewCol = position.getColumn();
// determine whether we advance in a row (tab) or a column
// (newline).
if (prevRow == viewRow) {
plainBuffer.append('\t');
} else if (prevRow != -1) {
plainBuffer.append('\n');
htmlBuffer.append( " </tr>\n <tr>\n");
}
// create string from cell
String text = "";
Object observableValue = (Object) table.getVisibleLeafColumn(viewCol).getCellObservableValue( viewRow); // table position gives the view index => we need to operate on the view columns
// null-check: provide empty string for nulls
if (observableValue == null) {
text = "";
}
else if( observableValue instanceof DoubleProperty) { // TODO: handle boolean etc
text = numberFormatter.format( ((DoubleProperty) observableValue).get());
}
else if( observableValue instanceof IntegerProperty) {
text = numberFormatter.format( ((IntegerProperty) observableValue).get());
}
else if( observableValue instanceof StringProperty) {
text = ((StringProperty) observableValue).get();
}
else {
System.out.println("Unsupported observable value: " + observableValue);
}
// add new item to clipboard
plainBuffer.append(text);
htmlBuffer.append( " <td>" + text + "</td>\n");
// remember previous
prevRow = viewRow;
}
htmlBuffer.append( " </tr>\n");
htmlBuffer.append( "</table>\n</body>\n</html>");
// create clipboard content
final ClipboardContent clipboardContent = new ClipboardContent();
clipboardContent.putString(plainBuffer.toString());
clipboardContent.putHtml(htmlBuffer.toString());
System.out.println("ascii:\n" + plainBuffer.toString() + "\n\nhtml:\n" + htmlBuffer.toString());
// set clipboard content
Clipboard.getSystemClipboard().setContent(clipboardContent);
}
public static void pasteFromClipboard( TableView<?> table) {
// abort if there's not cell selected to start with
if( table.getSelectionModel().getSelectedCells().size() == 0) {
return;
}
// get the cell position to start with
TablePosition pasteCellPosition = table.getSelectionModel().getSelectedCells().get(0);
System.out.println("Pasting into cell " + pasteCellPosition);
String pasteString = Clipboard.getSystemClipboard().getString();
System.out.println(pasteString);
int rowClipboard = -1;
StringTokenizer rowTokenizer = new StringTokenizer( pasteString, "\n");
while( rowTokenizer.hasMoreTokens()) {
rowClipboard++;
String rowString = rowTokenizer.nextToken();
StringTokenizer columnTokenizer = new StringTokenizer( rowString, "\t");
int colClipboard = -1;
while( columnTokenizer.hasMoreTokens()) {
colClipboard++;
// get next cell data from clipboard
String clipboardCellContent = columnTokenizer.nextToken();
// calculate the position in the table cell
int rowTable = pasteCellPosition.getRow() + rowClipboard;
int colTable = pasteCellPosition.getColumn() + colClipboard;
// skip if we reached the end of the table
if( rowTable >= table.getItems().size()) {
continue;
}
if( colTable >= table.getColumns().size()) {
continue;
}
// System.out.println( rowClipboard + "/" + colClipboard + ": " + cell);
// get cell
TableColumn tableColumn = table.getVisibleLeafColumn(colTable); // table position gives the view index => we need to operate on the view columns
ObservableValue observableValue = tableColumn.getCellObservableValue(rowTable);
System.out.println( rowTable + "/" + colTable + ": " +observableValue);
// TODO: handle boolean, etc
if( observableValue instanceof DoubleProperty) {
try {
double value = numberFormatter.parse(clipboardCellContent).doubleValue();
((DoubleProperty) observableValue).set(value);
} catch (ParseException e) {
e.printStackTrace();
}
}
else if( observableValue instanceof IntegerProperty) {
try {
int value = NumberFormat.getInstance().parse(clipboardCellContent).intValue();
((IntegerProperty) observableValue).set(value);
} catch (ParseException e) {
e.printStackTrace();
}
}
else if( observableValue instanceof StringProperty) {
((StringProperty) observableValue).set(clipboardCellContent);
} else {
System.out.println("Unsupported observable value: " + observableValue);
}
System.out.println(rowTable + "/" + colTable);
}
}
}
}