点击jtable的表头，数据会根据根据表头来排序

import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.table.AbstractTableModel;
import java.awt.Dimension;
import java.awt.GridLayout;

public class TableSortDemo extends JPanel {
	private static final long serialVersionUID = 1L;
	private boolean DEBUG = false;

	public TableSortDemo() {
		super(new GridLayout(1, 0));
		JTable table = new JTable(new MyTableModel());
		table.setPreferredScrollableViewportSize(new Dimension(500, 70));
		table.setFillsViewportHeight(true);
		table.setAutoCreateRowSorter(true);
		//这句话是重点        
		//Create the scroll pane and add the table to it.        
		JScrollPane scrollPane = new JScrollPane(table);

		//Add the scroll pane to this panel.        
		add(scrollPane);
	}

	class MyTableModel extends AbstractTableModel {
		private String[] columnNames = { "First Name", "Last Name", "Sport", "# of Years", "Vegetarian" };
		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) }, };

		public int getColumnCount() {
			return columnNames.length;
		}

		public int getRowCount() {
			return data.length;
		}

		public String getColumnName(int col) {
			return columnNames[col];
		}

		public Object getValueAt(int row, int col) {
			return data[row][col];
		} /*
			 * * 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 getValueAt(0, c).getClass();
		} /* * Don't need to implement this method unless your table's * editable. */

		public boolean isCellEditable(int row, int col) { //Note that the data/cell address is constant,           
			//no matter where the cell appears onscreen.      
			if (col < 2) {
				return false;
			} else {
				return true;
			}
		} /* * Don't need to implement this method unless your table's * data can change. */

		public void setValueAt(Object value, int row, int col) {
			if (DEBUG) {
				System.out.println("Setting value at " + row + "," + col + " to " + value + " (an instance of " + value.getClass() + ")");
			}
			data[row][col] = value;
			// Normally, one should call fireTableCellUpdated() when     
			// a value is changed.  However, doing so in this demo     
			// causes a problem with TableSorter.  The tableChanged()   
			// call on TableSorter that results from calling   
			// fireTableCellUpdated() causes the indices to be regenerated  
			// when they shouldn't be.  Ideally, TableSorter should be   
			// given a more intelligent tableChanged() implementation,   
			// and then the following line can be uncommented.      
			// fireTableCellUpdated(row, col);      
			if (DEBUG) {
				System.out.println("New value of data:");
				printDebugData();
			}
		}

		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("  " + data[i][j]);
				}
				System.out.println();
			}
			System.out.println("--------------------------");
		}
	}

	/** * Create the GUI and show it. For thread safety, * this method should be invoked from the * event-dispatching thread. */
	private static void createAndShowGUI() { //Create and set up the window.       
		JFrame frame = new JFrame("TableSortDemo");
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		//Create and set up the content pane.       
		TableSortDemo newContentPane = new TableSortDemo();
		newContentPane.setOpaque(true); //content panes must be opaque  
		frame.setContentPane(newContentPane); //Display the window.   
		frame.pack();
		frame.setVisible(true);
	}

	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();
			}
		});
	}
}