[Java] JTable 表头加checkbox全选

效果图：

1. class TableModelProxy extends AbstractTableModel

import javax.swing.table.AbstractTableModel;

public class TableModelProxy extends AbstractTableModel {

    /**
     * 
     */
    private static final long serialVersionUID = -3295581072864170310L;
    private String[] columnNames;

    public void setColumnNames(String[] columnNames) {
        this.columnNames = columnNames;
    }


    public void setData(Object[][] data) {
        this.data = data;
    }

    private Object[][] data;

    public TableModelProxy(String[] columnNames, Object[][] data) {
        // TODO Auto-generated constructor stub
        this.columnNames = columnNames;
        this.data = data;
    }


    @Override
    public String getColumnName(int column) {
        // TODO Auto-generated method stub
        return columnNames[column];
    }


    @Override
    public Class getColumnClass(int columnIndex) {
        // TODO Auto-generated method stub
        return getValueAt(0, columnIndex).getClass();
    }


    @Override
    public boolean isCellEditable(int rowIndex, int columnIndex) {
        // TODO Auto-generated method stub
        // Only the last column can be edit.
        if(rowIndex < columnNames.length - 1){
            return false;
        }else{
            return true;
        }
    }


    @Override
    public void setValueAt(Object aValue, int rowIndex, int columnIndex) {
        // TODO Auto-generated method stub
        data[rowIndex][columnIndex] = aValue;
        fireTableCellUpdated(rowIndex, columnIndex);
    }


    @Override
    public int getRowCount() {
        // TODO Auto-generated method stub
        return data.length;
    }

    @Override
    public int getColumnCount() {
        // TODO Auto-generated method stub
        return columnNames.length;
    }

    @Override
    public Object getValueAt(int rowIndex, int columnIndex) {
        // TODO Auto-generated method stub
        return data[rowIndex][columnIndex];
    }

    public void selectAllOrNull(boolean value){
        // Select All. The last column
        for(int index = 0; index < getRowCount(); index ++){
            this.setValueAt(value, index, getColumnCount() - 1);
        }
    }
}

1. class CheckHeaderCellRenderer implements TableCellRenderer

import java.awt.Component;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;

import javax.swing.JCheckBox;
import javax.swing.JComponent;
import javax.swing.JLabel;
import javax.swing.JTable;
import javax.swing.SwingConstants;
import javax.swing.UIManager;
import javax.swing.table.JTableHeader;
import javax.swing.table.TableCellRenderer;

public class CheckHeaderCellRenderer implements TableCellRenderer {
    TableModelProxy tableModel;
    JTableHeader tableHeader;
    final JCheckBox selectBox;

    public CheckHeaderCellRenderer(final JTable table) {
        this.tableModel = (TableModelProxy) table.getModel();
        this.tableHeader = table.getTableHeader();
        selectBox = new JCheckBox(tableModel.getColumnName(table.getColumnCount() - 1));
        selectBox.setSelected(false);
        tableHeader.addMouseListener(new MouseAdapter() {
            public void mouseClicked(MouseEvent e) {
                if (e.getClickCount() > 0) {
                    // 获得选中列
                    int selectColumn = tableHeader.columnAtPoint(e.getPoint());
                    if (selectColumn == table.getColumnCount() - 1) {
                        boolean value = !selectBox.isSelected();
                        selectBox.setSelected(value);
                        tableModel.selectAllOrNull(value);
                        tableHeader.repaint();
                    }
                }
            }
        });
    }

    @Override
    public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus,
            int row, int column) {
        // TODO Auto-generated method stub
        String valueStr = (String) value;
        JLabel label = new JLabel(valueStr);
        label.setHorizontalAlignment(SwingConstants.CENTER); // 表头标签剧中
        selectBox.setHorizontalAlignment(SwingConstants.CENTER);// 表头标签剧中
        selectBox.setBorderPainted(true);
        JComponent component = (column == table.getColumnCount() - 1) ? selectBox : label;

        component.setForeground(tableHeader.getForeground());
        component.setBackground(tableHeader.getBackground());
        component.setFont(tableHeader.getFont());
        component.setBorder(UIManager.getBorder("TableHeader.cellBorder"));

        return component;
    }

}

1. Test Code: TestFrame.java

import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.EventQueue;
import java.util.Vector;

import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.border.EmptyBorder;

public class TestFrame extends JFrame {

    private JPanel contentPane;
    private JTable table;

    /**
     * Launch the application.
     */
    public static void main(String[] args) {
        EventQueue.invokeLater(new Runnable() {
            public void run() {
                try {
                    TestFrame frame = new TestFrame();
                    frame.setVisible(true);
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        });
    }

    /**
     * Create the frame.
     */
    public TestFrame() {
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        this.setTitle("CheckBox Table");
        this.setPreferredSize(new Dimension(400, 300));
        // setBounds(100, 100, 450, 300);
        contentPane = new JPanel();
        contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
        contentPane.setLayout(new BorderLayout(0, 0));
        setContentPane(contentPane);
        table = new JTable();
        JScrollPane scrollPane = new JScrollPane(table, JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,
                JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
        contentPane.add(scrollPane, BorderLayout.CENTER);
        initTable();
        pack();
    }

    private void initTable() {
        String[] columnNames = {"name","age", "choose"};
        Object[][] data = this.getData();
        TableModelProxy tableModel = new TableModelProxy(columnNames, data);
        table.setModel(tableModel);
        table.getTableHeader().setDefaultRenderer(new CheckHeaderCellRenderer(table));
    }

    /**
     * 获得数据
     * 
     * @return
     */
    private Object[][] getData() {
        Object[][] data = {
                { "Kathy", 5, new Boolean(false) },
            { "John", 15, new Boolean(true) },
            { "Sue", 16, new Boolean(false) },
            { "Jane",17, new Boolean(true) },
            { "Joe", 18, new Boolean(false) } };
        return data;
    }

}