JTable中设置多个按钮，并且启用/禁用相应按钮

  

    刚做的项目中要用到JTable，之前没有接触过，现在把所学到的都罗列出来，做一个整理。

 

package cn.cf.bs;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Vector;

import javax.swing.DefaultCellEditor;
import javax.swing.JButton;
import javax.swing.JCheckBox;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.ListSelectionModel;
import javax.swing.UIManager;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableCellRenderer;

public class SearchPanel extends JFrame {
	private DefaultTableModel tableModel;
	private JTable table;
	private final int columnWithoutButton = 5;
	private Boolean[] enableBooleans = { true, false, false, true }; //记录button的启用/禁用状态

	public SearchPanel() {
		setLayout(new BorderLayout());

		setBounds(10,10,800,600);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        
		this.setBackground(Color.white);
		final JPanel panel = new JPanel();
		panel.setLayout(new BorderLayout());
		add(panel);

		final JScrollPane scrollPane = new JScrollPane();
		scrollPane.setAutoscrolls(true);
		panel.add(scrollPane);

		tableModel = new DefaultTableModel() {
			// 设置列能否编辑
			@Override
			public boolean isCellEditable(int row, int column) {
				if (column == 5 || column == 6 || column == 7 || column == 8)
					return true;
				return false;
			}
		};

		String headName[] = { "Column1", "Column2", "Column3", "Column4",
				"Column5", "Column6", "Column7", "Column8", "Column9" };
		tableModel.setColumnIdentifiers(headName);
		table = new JTable(tableModel);
		table.getColumn("Column6").setCellRenderer(new ButtonRenderer());
		table.getColumn("Column6").setCellEditor(
				new ButtonEditor(new JCheckBox()));

		table.getColumn("Column7").setCellRenderer(new ButtonRenderer());
		table.getColumn("Column7").setCellEditor(
				new ButtonEditor(new JCheckBox()));

		table.getColumn("Column8").setCellRenderer(new ButtonRenderer());
		table.getColumn("Column8").setCellEditor(
				new ButtonEditor(new JCheckBox()));

		table.getColumn("Column9").setCellRenderer(new ButtonRenderer());
		table.getColumn("Column9").setCellEditor(
				new ButtonEditor(new JCheckBox()));

		table.setShowGrid(true);

		// 设置列标题不能移动
		table.getTableHeader().setReorderingAllowed(false);
		table.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);

		scrollPane.setViewportView(table);

		// 设置列宽,并且当调整Panel时列宽也能相应的变化
		table.setAutoResizeMode(JTable.AUTO_RESIZE_ALL_COLUMNS);
//		table.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);  //若设置它，列宽永远固定
		table.getColumnModel().getColumn(0).setPreferredWidth(30);
		table.getColumnModel().getColumn(1).setPreferredWidth(100);
		table.getColumnModel().getColumn(2).setPreferredWidth(40);
		table.getColumnModel().getColumn(3).setPreferredWidth(40);
		table.getColumnModel().getColumn(4).setPreferredWidth(100);
		table.getColumnModel().getColumn(5).setPreferredWidth(55);
		table.getColumnModel().getColumn(6).setPreferredWidth(70);
		table.getColumnModel().getColumn(7).setPreferredWidth(70);

		// 设置行高
		table.setRowHeight(20);
		setVisible(true);
		
		InitValue();
	}

	private void InitValue() {
		for(int i=0;i<5;i++){
			Vector vector=new Vector();
			vector.addElement("1");
			vector.addElement("Open Close Msg");
			vector.addElement("do");
			vector.addElement("2");
			vector.addElement("2010-10-18 00:00:00");
			
			vector.addElement("Send");
			vector.addElement("Request");
			vector.addElement("Ack");
			vector.addElement("Emergency");
			
			tableModel.getDataVector().add(vector);
		}
	}

	public class ButtonRenderer extends JButton implements TableCellRenderer {
		public ButtonRenderer() {
			setOpaque(true);
		}

		@Override
		public Component getTableCellRendererComponent(JTable table,
				Object value, boolean isSelected, boolean hasFocus, int row,
				int column) {
			if (isSelected) {
				setForeground(table.getSelectionForeground());
				setBackground(table.getSelectionBackground());
			} else {
				setForeground(table.getForeground());
				setBackground(UIManager.getColor("Button.background"));
			}
			setText((value == null) ? "" : value.toString());
			// 情况一：启用/禁用按钮
			setEnabled(enableBooleans[column - columnWithoutButton]);
			// 情况二：禁用按钮时，不显示按钮，显示空白
			// if(enableBooleans[column] - columnWithoutButton)
			// 	setEnabled(setEnabled(enableBooleans[column-columnWithoutButton]);
			// else
			// 	return null;
			return this;
		}

	}

	public class ButtonEditor extends DefaultCellEditor {
		protected JButton button;

		public ButtonEditor(JCheckBox checkBox) {
			super(checkBox);
			button = new JButton();
			button.setOpaque(true);
			button.addActionListener(new ActionListener() {

				@Override
				public void actionPerformed(ActionEvent arg0) {
					ButtonClick();
				}

			});
		}

		@Override
		public Component getTableCellEditorComponent(JTable table1,
				Object value, boolean isSelected, int row, int column) {
			if (isSelected) {
				button.setForeground(table.getSelectionForeground());
				button.setBackground(table.getSelectionBackground());
			} else {
				button.setForeground(table.getForeground());
				button.setBackground(table.getBackground());
			}

			button.setText(table1.getValueAt(row, column).toString());

			// 情况一：启用/禁用按钮
			button.setEnabled(enableBooleans[column - columnWithoutButton]);
			// 情况二：禁用按钮时，不显示按钮，显示空白
			// if(enableBooleans[column] - columnWithoutButton)
			// 	button.setEnabled(setEnabled(enableBooleans[column-columnWithoutButton]);
			// else
			// 	return null;
			return button;

		}

		//若缺少此方法，点击按钮后将获取不到Button的Text值，将会显示false.
		@Override
		public Object getCellEditorValue(){
			return button.getText();
		}
		
		protected void ButtonClick() {
			// TODO Auto-generated method stub
			System.out.println(table.getSelectedColumn() + " and  "
					+ table.getSelectedRow());
		}
	}
	
	
	public static void main(String args[]) {
		try {
			new SearchPanel();
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
}