JTable中合并单元格

JTable中合并格 /* * SimpleTableDemo.java is a 1.4 application that requires no other files. */ //编辑的时候直接从覆盖原有内容 import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.JScrollPane; import javax.swing.JTable; import java.awt.Dimension; import java.awt.GridLayout; import java.awt.event.MouseAdapter; import java.awt.event.MouseEvent; import java.util.*; import java.awt.event.*; import javax.swing.*; import javax.swing.table.*; import java.io.*; import java.util.*; public class Combine extends JPanel { private boolean DEBUG = false; JTable table; public Combine() { super(new GridLayout(1,0)); table = new JTable( new MyTableModel() ); table.setPreferredScrollableViewportSize(new Dimension(500, 70)); /////////////////////////////////////////////////////////// table.setDefaultEditor( String.class, new SelEditor() ); //Create the scroll pane and add the table to it. JScrollPane scrollPane = new JScrollPane(table); //Add the scroll pane to this panel. add(scrollPane); } /** * Create the GUI and show it. For thread safety, * this method should be invoked from the * event-dispatching thread. */ private static void createAndShowGUI() { //Make sure we have nice window decorations. JFrame.setDefaultLookAndFeelDecorated(true); //Create and set up the window. JFrame frame = new JFrame("MyCustomTable2"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); //Create and set up the content pane. Combine newContentPane = new Combine(); newContentPane.setOpaque(true); //content panes must be opaque frame.setContentPane(newContentPane); //Display the window. frame.pack(); frame.setVisible(true); try { Thread.sleep( 1000 ); } catch ( InterruptedException e ) { e.printStackTrace(); } ((MyTableModel)newContentPane.table.getModel()).combineRow( "First Name", "Last Name" ); } public static void main(String[] args) { //Schedule a job for the event-dispatching thread: //creating and showing this application?s GUI. javax.swing.SwingUtilities.invokeLater(new Runnable() { public void run() { createAndShowGUI(); } }); } class MyTableModel extends AbstractTableModel { private String[] columnNames = {"First Name", "Last Name", "Sport", "# of Years", "Vegetarian"}; private List cList = new ArrayList(); { for( int i = 0; i < columnNames.length; i ++ ) cList.add( columnNames[ i ] ); } private Object[][] data = { {"Mary", "Campione", "Snowboarding", new Integer(5), new Boolean(false)}, {"Alison", "Huml", "Rowing", new Integer(3), new Boolean(true)}, {"Kathy", "Walrath", "Knitting", new Integer(2), new Boolean(false)}, {"Sharon", "Zakhour", "Speed reading", new Integer(20), new Boolean(true)}, {"Philip", "Milne", "Pool", new Integer(10), new Boolean(false)} }; private List dList = new ArrayList(); { for( int i = 0; i < data.length; i ++ ) { List tmp = new ArrayList(); for( int j = 0; j < data[ i ].length; j ++ ) { tmp.add( data[ i ][ j ] ); } dList.add( tmp ); } } public int getColumnCount() { return cList.size(); } public int getRowCount() { return dList.size(); } public String getColumnName(int col) { return (String)cList.get( col ); } public Object getValueAt(int row, int col) { return ((List)dList.get( row )).get( col ); } public void combineRow( String r1, String r2 ) { int index1 = cList.indexOf( r1 ); int index2 = cList.indexOf( r2 ); cList.set( index1, r1+r2 ); cList.remove( r2 ); for( int i = 0; i < dList.size(); i ++ ) { List list = (List)dList.get( i ); list.set( index1, list.get( index1 ).toString() + list.get( index2 ) ); list.remove( index2 ); } fireTableStructureChanged(); } /* * JTable uses this method to determine the default renderer/ * editor for each cell. If we didn?t implement this method, * then the last column would contain text ("true"/"false"), * rather than a check box. */ public Class getColumnClass(int c) { return cList.get( c ).getClass(); } public boolean isCellEditable(int row, int col) { //Note that the data/cell address is constant, //no matter where the cell appears onscreen. return true; } public void setValueAt(Object value, int row, int col) { ((List)dList.get( row )).set( col , value ); fireTableCellUpdated(row, col); } private void printDebugData() { int numRows = getRowCount(); int numCols = getColumnCount(); for (int i=0; i < numRows; i++) { System.out.print(" row " + i + ":"); for (int j=0; j < numCols; j++) { System.out.print(" " + ((List)dList.get( i )).get( j )); } System.out.println(); } System.out.println("--------------------------"); } } } 请仔细看MyTableModel的实现 第二个: /* (swing1.1beta3) */ package tame.examples; import java.awt.event.WindowAdapter; import java.awt.event.WindowEvent; import java.awt.*; import javax.swing.*; import javax.swing.table.*; import tame.table.ColumnGroup; import tame.table.GroupableTableHeader; import tame.table.GroupableTableHeaderUI; /**

 
* |-----------------------------------------------------| * | | Name | Language | * | |-----------------|--------------------------| * | SNo. | | | | Others | * | | 1 | 2 | Native |-----------------| * | | | | | 2 | 3 | * |-----------------------------------------------------| * | | | | | | | 

@author Nobuo Tamemasa @version 1.0 11/09/98 */ public class GroupableHeaderExample extends JFrame { GroupableHeaderExample() { super( "Groupable Header Example" ); DefaultTableModel dm = new DefaultTableModel(); dm.setDataVector(new Object[][]{ {"119","foo","bar","ja","ko","zh"}, {"911","bar","foo","en","fr","pt"}}, new Object[]{"SNo.","1","2","Native","2","3"}); JTable table = new JTable( dm ) { protected JTableHeader createDefaultTableHeader() { return new GroupableTableHeader(columnModel); } }; TableColumnModel cm = table.getColumnModel(); //得到列模型，可 以取出头 ColumnGroup g_name = new ColumnGroup("Name"); g_name.add(cm.getColumn(1)); g_name.add(cm.getColumn(2)); ColumnGroup g_lang = new ColumnGroup("Language"); g_lang.add(cm.getColumn(3)); ColumnGroup g_other = new ColumnGroup("Others"); g_other.add(cm.getColumn(4)); g_other.add(cm.getColumn(5)); g_lang.add(g_other); GroupableTableHeader header = (GroupableTableHeader)table.getTableHeader(); header.addColumnGroup(g_name); header.addColumnGroup(g_lang); TableCellRenderer renderer = new DefaultTableCellRenderer() { public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) { JTableHeader header = table.getTableHeader(); if (header != null) { setForeground(header.getForeground()); setBackground(header.getBackground()); setFont(header.getFont()); } setHorizontalAlignment(JLabel.CENTER); setText((value == null) ? "" : value.toString()); setBorder(UIManager.getBorder("TableHeader.cellBorder")); return this; } }; TableColumnModel model = table.getColumnModel(); for (int i=0;i题

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