JTable中如何让它双击改变颜色？附代码~

Question

    private void jbInit() throws Exception
    {
        titledBorder1 = new TitledBorder("");
        this.setDefaultCloseOperation(3);
        this.setFont(new java.awt.Font("Dialog", 0, 10));
        this.setModal(true);
        this.setResizable(false);
        this.getContentPane().setLayout(borderLayout3);
        intYear=calendar.get(Calendar.YEAR);
        intMonth=calendar.get(Calendar.MONTH);
        intDay=calendar.get(Calendar.DATE);        YearScrollbar.setMaximum(2100);//最大年份
        YearScrollbar.setMinimum(1900);//最小年份
        YearScrollbar.setOrientation(JScrollBar.HORIZONTAL);
        YearScrollbar.setFont(new java.awt.Font("Dialog", 0, 10));
        YearScrollbar.setBorder(BorderFactory.createLoweredBevelBorder());
        YearScrollbar.setMaximumSize(new Dimension(16, 20));
        YearScrollbar.setMinimumSize(new Dimension(16, 20));
        YearScrollbar.setNextFocusableComponent(table);
        YearScrollbar.setPreferredSize(new Dimension(50, 20));
        YearScrollbar.setValue(intYear);        for(int i=1;i<=12;i++)
            MonthChoice.addItem(String.valueOf(i));
        MonthChoice.setSelectedIndex(intMonth);
        panel2.setLayout(xYLayout1);
        MonthChoice.setFont(new java.awt.Font("Dialog", 0, 10));
        MonthChoice.setBorder(BorderFactory.createLoweredBevelBorder());
        MonthChoice.setMaximumRowCount(2);        label3.setFont(new java.awt.Font("Dialog", 0, 10));
        label3.setText(" 月");
        label2.setFont(new java.awt.Font("Dialog", 0, 10));
        label2.setText(" 年 ");        table.getTableHeader().setFont(new Font("Dialog",0,10));
        table.getTableHeader().setDefaultRenderer(new DefaultTableCellRenderer()
        {
            public Component getTableCellRendererComponent(JTable table,
                                               Object value,
                                               boolean isSelected,
                                               boolean hasFocus,
                                               int row,
                                               int column)
            {
                if(value!=null)
                    return new JLabel(value.toString(),JLabel.CENTER);
                else
                    return new JLabel();
            }
        });        table.getTableHeader().setResizingAllowed(false);
        table.getTableHeader().setReorderingAllowed(false);
        table.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
        table.setCellSelectionEnabled(true);
        table.setColumnSelectionAllowed(true);
        table.setRowSelectionAllowed(true);
        table.setShowHorizontalLines(false);
        table.setShowVerticalLines(false);
        table.setGridColor(Color.white);
        table.setRowMargin(3);
        table.setFont(new java.awt.Font("Dialog", 0, 10));
        table.setAlignmentX((float) 0.0);
        table.setAlignmentY((float) 0.0);
        table.setAutoResizeMode(JTable.AUTO_RESIZE_NEXT_COLUMN);        jPanel1.setLayout(borderLayout1);
        TimeLabel.setFont(new java.awt.Font("Dialog", 0, 10));
        TimeLabel.setText("label1");
        jPanel2.setLayout(borderLayout2);
        jScrollPane1.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
        jScrollPane1.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_NEVER);
        jScrollPane1.setBorder(BorderFactory.createLoweredBevelBorder());
        jScrollPane1.setNextFocusableComponent(table);
        jPanel1.setBorder(BorderFactory.createLineBorder(Color.black));
        jPanel1.setNextFocusableComponent(table);
        YearTextField.setColumns(4);
        YearTextField.setEditable(false);
        YearTextField.setFont(new java.awt.Font("Dialog", 0, 10));
        YearTextField.setDisabledTextColor(Color.white);
        YearTextField.setText(String.valueOf(intYear));
        panel2.setNextFocusableComponent(table);
        jPanel2.setNextFocusableComponent(table);
        this.getContentPane().add(jPanel1,  BorderLayout.CENTER);
        jPanel1.add(jScrollPane1, BorderLayout.CENTER);
        jPanel1.add(panel2, BorderLayout.NORTH);        panel2.add(MonthChoice, new XYConstraints(89, 0, 37, -1));
        panel2.add(label3, new XYConstraints(127, 0, 15, 20));
        panel2.add(label2, new XYConstraints(74, 0, -1, 20));
        panel2.add(YearTextField, new XYConstraints(22, 0, 30, -1));
        panel2.add(YearScrollbar, new XYConstraints(1, 0, 72, -1));        jPanel1.add(jPanel2, BorderLayout.SOUTH);
        jPanel2.add(TimeLabel,  BorderLayout.WEST);
        table.setSelectionMode(0);        MonthChoice.addItemListener(new java.awt.event.ItemListener()
        {
            public void itemStateChanged(ItemEvent e)
            {
                intMonth=MonthChoice.getSelectedIndex();
                fillDate(intYear,intMonth,intDay);
            }
        });        YearScrollbar.addAdjustmentListener(new java.awt.event.AdjustmentListener()
        {
            public void adjustmentValueChanged(AdjustmentEvent e)
            {
                intYear=YearScrollbar.getValue();
                YearTextField.setText(String.valueOf(intYear));
                fillDate(intYear,intMonth,intDay);
            }
        });        //日期表格鼠标动作处理
        table.addMouseListener(new java.awt.event.MouseAdapter()
        {
            public void mouseClicked(MouseEvent e)
            {
                if(e.getClickCount()>1)//不单击
                {
                    try
                    {
                        Integer.parseInt(table.getValueAt(table.getSelectedRow(),
                                table.getSelectedColumn()).toString());
                        isConfirm = true;
                        //System.out.println(FinalyDate);
                        int n = table.getComponentCount();
                        table.getComponent(n).setBackground(Color.blue);
//这里~我写得不对~应该如何去写？
                        //cancel();//退出
                    }
                    catch(Exception ex){}
                }
                else//单击更改状态栏日期
                try
                {
                    intDay = Integer.parseInt(table.getValueAt(table.getSelectedRow(),
                            table.getSelectedColumn()).toString());
                    calendar = new GregorianCalendar(intYear,intMonth,intDay);
                }                catch(NumberFormatException ex){}
                catch(NullPointerException ex){}
                SimpleDateFormat sdf = new SimpleDateFormat("yyyy'-'MM'-'dd");
                FinalyDate = sdf.format(calendar.getTime());
                TimeLabel.setText(FinalyDate);
            }
        });
        this.requestFocus();
        table.requestFocus();
        fillDate(intYear,intMonth,intDay);
    }    public void show()
    {
        isConfirm=false;
        super.show();
    }    /**如果选择了日期*/
    public boolean isConfirm()
    {
        return isConfirm;
    }    protected void processWindowEvent(WindowEvent e)
    {
        if (e.getID() == WindowEvent.WINDOW_CLOSING)
        {
            cancel();
        }
        super.processWindowEvent(e);
    }    private void cancel()
    {
        dispose();
    }    public void run()
    {
    }}

Answer 1

import java.awt.*;
import java.awt.event.*;
import javax.swing.table.*;
import java.util.Calendar;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.GregorianCalendar;
import javax.swing.*;
import com.borland.jbcl.layout.*;
import java.beans.*;
import javax.swing.border.*;
import javax.swing.event.*;public class CalendarDlg extends JDialog implements Runnable
{
    private GregorianCalendar calendar = new GregorianCalendar();//日期
    private int intYear=2000;//年
    private int intMonth=1;//月
    private int intDay=1;//日
    private String FinalyDate="";//输出的日期字符窜
    private boolean isRun=true;//是否在运行
    private int doubleClickedRow = 0;
    private int doubleClickedColumn = 0;
    private boolean isDoubleClicked = false;
    //构造一个不可编辑的表模型 model
    private DefaultTableModel model=new DefaultTableModel(new Object[6][7],
                new Object[]{"日","一","二","三","四","五","六"})
    {
        public boolean isCellEditable(int row,int column)
        {
            return false;
        }
    };    private TitledBorder titledBorder1;
    private JPanel jPanel1 = new JPanel();
    private JPanel panel2 = new JPanel();
    private JComboBox MonthChoice = new JComboBox();//月份选择框
    private JLabel label3 = new JLabel();
    private JLabel label2 = new JLabel();
    private JScrollBar YearScrollbar = new JScrollBar();    private JTable table = new JTable(model)
    {//日期表格
        public TableCellRenderer getCellRenderer(int row,int column)
        {
            return new DefaultTableCellRenderer()
            {//日期表格填充并设定组件
                public Component getTableCellRendererComponent(JTable table,
                                               Object value,
                                               boolean isSelected,
                                               boolean hasFocus,
                                               int row,
                                               int column)
                {
                    JLabel label=null;
                    if(value!=null)
                    {
                        label = new JLabel(value.toString(),JLabel.CENTER);
                        label.setOpaque(true);
                        label.setFont(table.getFont());
                        if(isSelected)//选择日期
                        {
                            label.setForeground(Color.white);
                            label.setBackground(Color.green);
                            label.setBorder(BorderFactory.createLineBorder(Color.yellow));
                        }
                        else//没有选择
                        {
                            label.setForeground(Color.black);
                            label.setBackground(Color.white);
                        }
                        if (isDoubleClicked && doubleClickedRow == row && doubleClickedColumn == column) {
                            label.setForeground(Color.white);
                            label.setBackground(Color.blue);
                            isDoubleClicked = false;
                        }
                    }
                    return label;
                }
            };
        }
    };    private JScrollPane jScrollPane1 = new JScrollPane(table);
    private JPanel jPanel2 = new JPanel();
    private JLabel TimeLabel = new JLabel();
    private BorderLayout borderLayout2 = new BorderLayout();
    private BorderLayout borderLayout3 = new BorderLayout();
    private BorderLayout borderLayout1 = new BorderLayout();
    private XYLayout xYLayout1 = new XYLayout();
    private JTextField YearTextField = new JTextField();//年
    private boolean isConfirm=false;    public CalendarDlg(Frame parentFrame)
    {
        super(parentFrame,"",true);
        try
        {
            jbInit();
            enableEvents(AWTEvent.WINDOW_EVENT_MASK);
        }
        catch(Exception e)
        {
            e.printStackTrace();
        }
        Dimension d = Toolkit.getDefaultToolkit().getScreenSize();
        this.setSize(350,500);
        setLocation((d.width -getWidth())/2,(d.height-getHeight())/2) ;
    }    //给 model 添加日期
    private void fillDate(int pYear,int pMonth,int pDay)
    {
        calendar = new GregorianCalendar(pYear,pMonth,1);
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy'-'MM'-'dd");
        FinalyDate = sdf.format(new GregorianCalendar(pYear,pMonth,pDay).getTime());//获得当前日期
        TimeLabel.setText(FinalyDate);//下面显示日期 label        int maxDayCount = calendar.getActualMaximum(Calendar.DAY_OF_MONTH);
        if(pDay>maxDayCount)
            pDay=maxDayCount;
        int dayOfWeek = calendar.get(Calendar.DAY_OF_WEEK);
        int selectRow = 0;
        int selectCol = dayOfWeek;
        int count=0;
        int num=0;        for(int i=0;i<6;i++)
        {
            for(int j=0;j<7;j++)
            {
                count++;
                if(count>=dayOfWeek&&count<maxDayCount+dayOfWeek)
                {
                    model.setValueAt(String.valueOf(++num),i,j);
                    if(num==pDay)
                    {
                        selectRow=i;
                        selectCol=j;
                    }
                }
                else
                    model.setValueAt(null,i,j);
            }
        }        table.setRowSelectionInterval(selectRow,selectRow);
        table.setColumnSelectionInterval(selectCol,selectCol);
    }    //得到选择日期
    public String getFinalyDate()
    {
        return FinalyDate;
    }

Answer 2

    private void jbInit() throws Exception
    {
        titledBorder1 = new TitledBorder("");
        this.setDefaultCloseOperation(3);
        this.setFont(new java.awt.Font("Dialog", 0, 10));
        this.setModal(true);
        this.setResizable(false);
        this.getContentPane().setLayout(borderLayout3);
        intYear=calendar.get(Calendar.YEAR);
        intMonth=calendar.get(Calendar.MONTH);
        intDay=calendar.get(Calendar.DATE);        YearScrollbar.setMaximum(2100);//最大年份
        YearScrollbar.setMinimum(1900);//最小年份
        YearScrollbar.setOrientation(JScrollBar.HORIZONTAL);
        YearScrollbar.setFont(new java.awt.Font("Dialog", 0, 10));
        YearScrollbar.setBorder(BorderFactory.createLoweredBevelBorder());
        YearScrollbar.setMaximumSize(new Dimension(16, 20));
        YearScrollbar.setMinimumSize(new Dimension(16, 20));
        YearScrollbar.setNextFocusableComponent(table);
        YearScrollbar.setPreferredSize(new Dimension(50, 20));
        YearScrollbar.setValue(intYear);        for(int i=1;i<=12;i++)
            MonthChoice.addItem(String.valueOf(i));
        MonthChoice.setSelectedIndex(intMonth);
        panel2.setLayout(xYLayout1);
        MonthChoice.setFont(new java.awt.Font("Dialog", 0, 10));
        MonthChoice.setBorder(BorderFactory.createLoweredBevelBorder());
        MonthChoice.setMaximumRowCount(2);        label3.setFont(new java.awt.Font("Dialog", 0, 10));
        label3.setText(" 月");
        label2.setFont(new java.awt.Font("Dialog", 0, 10));
        label2.setText(" 年 ");        table.getTableHeader().setFont(new Font("Dialog",0,10));
        table.getTableHeader().setDefaultRenderer(new DefaultTableCellRenderer()
        {
            public Component getTableCellRendererComponent(JTable table,
                                               Object value,
                                               boolean isSelected,
                                               boolean hasFocus,
                                               int row,
                                               int column)
            {
                if(value!=null)
                    return new JLabel(value.toString(),JLabel.CENTER);
                else
                    return new JLabel();
            }
        });        table.getTableHeader().setResizingAllowed(false);
        table.getTableHeader().setReorderingAllowed(false);
        table.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
        table.setCellSelectionEnabled(true);
        table.setColumnSelectionAllowed(true);
        table.setRowSelectionAllowed(true);
        table.setShowHorizontalLines(false);
        table.setShowVerticalLines(false);
        table.setGridColor(Color.white);
        table.setRowMargin(3);
        table.setFont(new java.awt.Font("Dialog", 0, 10));
        table.setAlignmentX((float) 0.0);
        table.setAlignmentY((float) 0.0);
        table.setAutoResizeMode(JTable.AUTO_RESIZE_NEXT_COLUMN);        jPanel1.setLayout(borderLayout1);
        TimeLabel.setFont(new java.awt.Font("Dialog", 0, 10));
        TimeLabel.setText("label1");
        jPanel2.setLayout(borderLayout2);
        jScrollPane1.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
        jScrollPane1.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_NEVER);
        jScrollPane1.setBorder(BorderFactory.createLoweredBevelBorder());
        jScrollPane1.setNextFocusableComponent(table);
        jPanel1.setBorder(BorderFactory.createLineBorder(Color.black));
        jPanel1.setNextFocusableComponent(table);
        YearTextField.setColumns(4);
        YearTextField.setEditable(false);
        YearTextField.setFont(new java.awt.Font("Dialog", 0, 10));
        YearTextField.setDisabledTextColor(Color.white);
        YearTextField.setText(String.valueOf(intYear));
        panel2.setNextFocusableComponent(table);
        jPanel2.setNextFocusableComponent(table);
        this.getContentPane().add(jPanel1,  BorderLayout.CENTER);
        jPanel1.add(jScrollPane1, BorderLayout.CENTER);
        jPanel1.add(panel2, BorderLayout.NORTH);        panel2.add(MonthChoice, new XYConstraints(89, 0, 37, -1));
        panel2.add(label3, new XYConstraints(127, 0, 15, 20));
        panel2.add(label2, new XYConstraints(74, 0, -1, 20));
        panel2.add(YearTextField, new XYConstraints(22, 0, 30, -1));
        panel2.add(YearScrollbar, new XYConstraints(1, 0, 72, -1));        jPanel1.add(jPanel2, BorderLayout.SOUTH);
        jPanel2.add(TimeLabel,  BorderLayout.WEST);
        table.setSelectionMode(0);        MonthChoice.addItemListener(new java.awt.event.ItemListener()
        {
            public void itemStateChanged(ItemEvent e)
            {
                intMonth=MonthChoice.getSelectedIndex();
                fillDate(intYear,intMonth,intDay);
            }
        });        YearScrollbar.addAdjustmentListener(new java.awt.event.AdjustmentListener()
        {
            public void adjustmentValueChanged(AdjustmentEvent e)
            {
                intYear=YearScrollbar.getValue();
                YearTextField.setText(String.valueOf(intYear));
                fillDate(intYear,intMonth,intDay);
            }
        });        //日期表格鼠标动作处理
        table.addMouseListener(new java.awt.event.MouseAdapter()
        {
            public void mouseClicked(MouseEvent e)
            {
                if(e.getClickCount()>1)//不单击
                {
                    try
                    {
                        Integer.parseInt(table.getValueAt(table.getSelectedRow(),
                                table.getSelectedColumn()).toString());
                        isConfirm = true;
                        isDoubleClicked = true;
                        doubleClickedRow = table.getSelectedRow();
                        doubleClickedColumn = table.getSelectedColumn();
                        table.repaint();
//这里~我写得不对~应该如何去写？
                        //cancel();//退出
                    }
                    catch(Exception ex){}
                }
                else//单击更改状态栏日期
                try
                {
                    intDay = Integer.parseInt(table.getValueAt(table.getSelectedRow(),
                            table.getSelectedColumn()).toString());
                    calendar = new GregorianCalendar(intYear,intMonth,intDay);
                }                catch(NumberFormatException ex){}
                catch(NullPointerException ex){}
                SimpleDateFormat sdf = new SimpleDateFormat("yyyy'-'MM'-'dd");
                FinalyDate = sdf.format(calendar.getTime());
                TimeLabel.setText(FinalyDate);
            }
        });
        this.requestFocus();
        table.requestFocus();
        fillDate(intYear,intMonth,intDay);
    }    public void show()
    {
        isConfirm=false;
        super.show();
    }    /**如果选择了日期*/
    public boolean isConfirm()
    {
        return isConfirm;
    }    protected void processWindowEvent(WindowEvent e)
    {
        if (e.getID() == WindowEvent.WINDOW_CLOSING)
        {
            cancel();
        }
        super.processWindowEvent(e);
    }    private void cancel()
    {
        dispose();
    }    public void run()
    {
    }
}