将DefaultTableModel数据复制到剪贴板

我有下一个JTable

private void initComponents() { jScrollPane1 = new javax.swing.JScrollPane(); jTable1 = new javax.swing.JTable(); jButton1 = new javax.swing.JButton(); jButton2 = new javax.swing.JButton(); setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE); getContentPane().setLayout(null); jTable1.setModel(new javax.swing.table.DefaultTableModel( new Object [][] { {"Hat", "New York", "1000"}, {"T-Shirt", "New York", "3500"}, {"Sweater", "Washington", "2800"}, {"Bag", "California", "7000"}, }, new String [] { "Name", "Warehouse", "Quantity" } )); jScrollPane1.setViewportView(jTable1); getContentPane().add(jScrollPane1); jScrollPane1.setBounds(19, 11, 375, 170); jButton1.setText("Copy"); getContentPane().add(jButton1); jButton1.setBounds(113, 195, 63, 23); jButton2.setText("Exit"); getContentPane().add(jButton2); jButton2.setBounds(225, 195, 53, 23); pack(); }

我希望按钮将模型的信息复制到剪贴板，但它不起作用，我尝试过使用

 String myString = "This text will be copied into clipboard when running this code!"; StringSelection stringSelection = new StringSelection (myString); Clipboard clpbrd = Toolkit.getDefaultToolkit ().getSystemClipboard (); clpbrd.setContents (stringSelection, null);

这个概念比较简单，实现起来有点复杂。

诀窍是找到各种应用程序将识别的mime类型，并允许您翻译数据。

我没有包含CSV转换，从示例代码中获取它不会花费太多时间，而且，我没有包含表格单元格值的任何“格式化”，我相信你可以想到也是。

 import java.awt.Toolkit; import java.awt.datatransfer.Clipboard; import java.awt.datatransfer.ClipboardOwner; import java.awt.datatransfer.DataFlavor; import java.awt.datatransfer.Transferable; import java.awt.datatransfer.UnsupportedFlavorException; import java.io.ByteArrayInputStream; import java.io.IOException; import java.util.logging.Level; import java.util.logging.Logger; import javax.swing.table.DefaultTableModel; import javax.swing.table.TableModel; public class CopyTableModel { public static void main(String[] args) { DefaultTableModel model = new DefaultTableModel( new Object[][]{ {"A1", "A2", "A3", "A4", "A5"}, {"B1", "B2", "B3", "B4", "B5"}, {"C1", "C2", "C3", "C4", "C5"}, {"D1", "D2", "D3", "D4", "D5"}, {"E1", "E2", "E3", "E4", "E5"}, {"F1", "F2", "F3", "F4", "F5"} }, new Object[]{"1", "2", "3", "4", "5"}); Clipboard cb = Toolkit.getDefaultToolkit().getSystemClipboard(); cb.setContents(new TableTransferable(model), new ClipboardOwner() { @Override public void lostOwnership(Clipboard clipboard, Transferable contents) { System.out.println("You lose :("); } }); } public static class TableTransferable implements Transferable { public static final DataFlavor TABLE_DATA_FLAVOR = new DataFlavor(TableModel.class, "binary/x-java-tablemodel; class="); public static final DataFlavor HTML_DATA_FLAVOR = new DataFlavor("text/html", "HTML"); public static final DataFlavor CSV_DATA_FLAVOR = new DataFlavor("text/csv", "CVS"); public static final DataFlavor PLAIN_DATA_FLAVOR = new DataFlavor("text/plain", "Plain text"); public static final DataFlavor SERIALIZED_DATA_FLAVOR = new DataFlavor(String.class, "application/x-java-serialized-object; Plain text"); private final TableModel model; public TableTransferable(TableModel model) { this.model = model; } @Override public DataFlavor[] getTransferDataFlavors() { return new DataFlavor[]{TABLE_DATA_FLAVOR, HTML_DATA_FLAVOR, CSV_DATA_FLAVOR, SERIALIZED_DATA_FLAVOR}; } @Override public boolean isDataFlavorSupported(DataFlavor flavor) { System.out.println("isSupported " + flavor); boolean supported = false; for (DataFlavor mine : getTransferDataFlavors()) { if (mine.equals(flavor)) { supported = true; break; } } return supported; } @Override public Object getTransferData(DataFlavor flavor) throws UnsupportedFlavorException, IOException { System.out.println("get " + flavor); Object data = null; if (TABLE_DATA_FLAVOR.equals(flavor)) { data = model; } else if (HTML_DATA_FLAVOR.equals(flavor)) { data = new ByteArrayInputStream(formatAsHTML().getBytes()); } else if (SERIALIZED_DATA_FLAVOR.equals(flavor)) { data = formatAsHTML(); } else if (CSV_DATA_FLAVOR.equals(flavor)) { data = new ByteArrayInputStream("CSV".getBytes()); } else { throw new UnsupportedFlavorException(flavor); } return data; } public String formatAsHTML() { StringBuilder sb = new StringBuilder(128); sb.append(""); sb.append(""); sb.append(""); for (int index = 0; index < model.getColumnCount(); index++) { sb.append(""); } sb.append(""); for (int rowIndex = 0; rowIndex < model.getRowCount(); rowIndex++) { sb.append(""); for (int colIndex = 0; colIndex < model.getColumnCount(); colIndex++) { Object o = model.getValueAt(rowIndex, colIndex); // You will want to format the value... String value = o == null ? "" : o.toString(); sb.append(""); } sb.append(""); } sb.append("").append(model.getColumnName(index)).append("
").append(value).append("
"); return sb.toString(); } } }

").append(model.getColumnName(index)).append("
").append(value).append("

JTable的默认复制function会将选定的数据行复制到剪贴板。

请参阅“操作映射操作”以获取可以访问此操作的方法。使用提供的类代码将是：

 Action copyAction = new ActionMapAction("Copy Table", table, "copy"); JButton copyButton = new JButton(copyAction);