複製的DefaultTableModel數據到剪貼板

Question

我接下來的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(); 
} 

我想要的按鈕複製模式到剪貼板的信息，但它不工作，我已經嘗試使用

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); 

Answer 1

這個概念比較簡單，執行起來稍微複雜一點。

訣竅是找到各種應用程序將識別的MIME類型，並允許您翻譯您的數據。

我還沒有包含CSV翻譯，從示例代碼中獲取它並不需要太多工作，另外，我沒有包含任何表格單元格的「格式」，我確定你也可以弄清楚。

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=<javax.swing.TableModel>"); 
     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("<html><body>"); 
      sb.append("<table>"); 
      sb.append("<tr>"); 
      for (int index = 0; index < model.getColumnCount(); index++) { 
       sb.append("<th>").append(model.getColumnName(index)).append("</th>"); 
      } 
      sb.append("</tr>"); 
      for (int rowIndex = 0; rowIndex < model.getRowCount(); rowIndex++) { 
       sb.append("<tr>"); 
       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("<td>").append(value).append("</td>"); 
       } 
       sb.append("</tr>"); 
      } 
      sb.append("</table>"); 

      return sb.toString(); 
     } 
    } 
} 

Answer 2

JTable的默認複製功能將選定的數據行復制到剪貼板。

請參閱Action Map Action瞭解可讓您訪問此操作的方法。使用提供的類代碼將是：

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