如何將動作偵聽器添加到JTable？

Question

這是一個java日曆。我想添加功能彈出和編輯視圖，當我點擊天。 1.如何將動作監聽器添加到JTable的單元格中？ 2.彈出對話框來存儲信息，當我點擊天（單元格）。

import javax.swing.*; 
import javax.swing.table.*; 
import java.awt.*; 
import java.awt.event.*; 
import java.util.*; 
import java.awt.event.MouseAdapter; 
import java.awt.event.MouseEvent; 

public class Calender{ 
    static JFrame Main_Frame; 
    static JButton Prev_button, Next_Button, Today_Button; 
    static JLabel Month_Label, Year_Label; 
    static JTable Calender_Table; 
    static JComboBox Year_Combobox; 
    static Container Pane_container; 
    static DefaultTableModel Calender_mTable; 
    static JScrollPane SCalender_Table; 
    static JPanel Calender_Panel; 
    static int Gre_Year, Gre_Month, Gre_Day, Current_Year, Current_Month; 

    public static void main (String args[]){ 
     //try catch 
     try {UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());} 
     catch (ClassNotFoundException e) {} 
     catch (InstantiationException e) {} 
     catch (IllegalAccessException e) {} 
     catch (UnsupportedLookAndFeelException e) {} 

     //create and settup frame 
     Main_Frame = new JFrame ("Calender"); 
     Main_Frame.setSize(330, 375); 
     Pane_container = Main_Frame.getContentPane(); 
     Pane_container.setLayout(null); 
     Main_Frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 


     //Create controls 
     Month_Label = new JLabel ("January"); 
     Year_Label = new JLabel ("Year:"); 
     Year_Combobox = new JComboBox(); 
     Prev_button = new JButton ("<"); 
     Next_Button = new JButton (">"); 
     Today_Button = new JButton("Today"); 
     Calender_mTable = new DefaultTableModel(){public boolean isCellEditable(int rowIndex, int mColIndex){return true;}}; 
     Calender_Table = new JTable(Calender_mTable); 
     SCalender_Table = new JScrollPane(Calender_Table); 
     Calender_Panel = new JPanel(null); 

     //Add all controls to panel 
     Pane_container.add(Calender_Panel); 
     Calender_Panel.add(Month_Label); 
     Calender_Panel.add(Year_Label); 
     Calender_Panel.add(Year_Combobox); 
     Calender_Panel.add(Prev_button); 
     Calender_Panel.add(Next_Button); 
     Calender_Panel.add(Today_Button); 
     Calender_Panel.add(SCalender_Table); 

     //listeners 
     Prev_button.addActionListener(new Prev_button_Action()); 
     Next_Button.addActionListener(new Next_Button_Action()); 
     Today_Button.addActionListener(new Today_Button_Action()); 
     Year_Combobox.addActionListener(new Year_Combobox_Action()); 
     // Calender_Table.addActionListener(new ActionLitsener()); 
     //Set the border with name 
     Calender_Panel.setBorder(BorderFactory.createTitledBorder("Calendar")); 



     //Set all element place and size 
     Calender_Panel.setBounds(0, 0, 321, 333); 
     Month_Label.setBounds(160-Month_Label.getPreferredSize().width/2, 25, 100, 25); 
     Year_Label.setBounds(200, 305, 81, 21); 
     Year_Combobox.setBounds(230, 305, 81, 21); 
     Prev_button.setBounds(10, 25, 51, 26); 
     Today_Button.setBounds(128,5,65,26); 
     Next_Button.setBounds(260, 25, 51, 26); 
     SCalender_Table.setBounds(10, 51, 301, 256); 

     //set visible frame 
     Main_Frame.setResizable(false); 
     Main_Frame.setVisible(true); 

     //Getthe month and day from gregorian 
     GregorianCalendar calender = new GregorianCalendar(); //Create calendar 
     Gre_Day = calender.get(GregorianCalendar.DAY_OF_MONTH); //Get day 
     Gre_Month = calender.get(GregorianCalendar.MONTH); //Get month 
     Gre_Year = calender.get(GregorianCalendar.YEAR); //Get year 
     Current_Month = Gre_Month; //Match month and year 
     Current_Year = Gre_Year; 

     //Add the headers 
     String[] headers = {"Sunday", "Monday", "Tueday", "Wednesday", "Thursday", "Friday", "Saturday"}; //All headers 
     for (int i=0; i<7; i++){ 
      Calender_mTable.addColumn(headers[i]); 

     } 
     //Set background 
     Calender_Table.getParent().setBackground(Calender_Table.getBackground()); 

     //No resize or reorder 

     Calender_Table.getTableHeader().setReorderingAllowed(false); 
     Calender_Table.getTableHeader().setResizingAllowed(false); 


     //Single cell selection 
     Calender_Table.setColumnSelectionAllowed(true); 
     Calender_Table.setRowSelectionAllowed(true); 
     Calender_Table.setSelectionMode(ListSelectionModel.SINGLE_SELECTION); 

     //Set row column 
     Calender_Table.setRowHeight(38); 
     Calender_mTable.setColumnCount(7); 
     Calender_mTable.setRowCount(6); 

     //Populate the table 
     for (int a=Gre_Year-100; a<=Gre_Year+100; a++){ 
      Year_Combobox.addItem(String.valueOf(a)); 
     } 

     //Refresh calendar 
     Refresh_Calendar (Gre_Month, Gre_Year); //Refresh calendar 
    } 

    public static void Refresh_Calendar(int month, int year){ 
     //Variables 
     String[] months = {"January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"}; 
     int dom, dow; //Number Of Days, Start Of Month 

     //allow the button = true 
     Prev_button.setEnabled(true); 
     Next_Button.setEnabled(true); 

     if (month == 0 && year <= Gre_Year-10){Prev_button.setEnabled(false);} 
     if (month == 11 && year >= Gre_Year+100){Next_Button.setEnabled(false);} 
     Month_Label.setText(months[month]); 
     Month_Label.setBounds(160-Month_Label.getPreferredSize().width/2, 25, 180, 25); 
     Year_Combobox.setSelectedItem(String.valueOf(year)); 

     //Clear table 
     for (int a=0; a<6; a++){ 
      for (int b=0; b<7; b++){ 
       Calender_mTable.setValueAt(null, a,b); 
      } 
     } 

     //Get first day of month and number of days 
     GregorianCalendar calander = new GregorianCalendar(year, month, 1); 
     dom = calander.getActualMaximum(GregorianCalendar.DAY_OF_MONTH); 
     dow = calander.get(GregorianCalendar.DAY_OF_WEEK); 

     //Draw the calendar 
     for (int a=1; a<=dom; a++){ 
      int row = new Integer((a+dow-2)/7); 
      int column = (a+dow-2)%7; 
      Calender_mTable.setValueAt(a, row, column); 
     } 

     //Apply renderers 
     Calender_Table.setDefaultRenderer(Calender_Table.getColumnClass(0), new Calender_TableRenderer()); 
    } 

    static class Calender_TableRenderer extends DefaultTableCellRenderer{ 
     public Component getTableCellRendererComponent (JTable table, Object value, boolean selected, boolean focused, int row, int column){ 
      super.getTableCellRendererComponent(table, value, selected, focused, row, column); 
      if (column == 0 || column == 6){ //Week-end 
       setBackground(new Color(135,206,235)); 
      } 
      else{ //Week days 
       setBackground(new Color(255, 255, 255)); 
      } 
      if (value != null){ 
       if (Integer.parseInt(value.toString()) == Gre_Day && Current_Month == Gre_Month && Current_Year == Gre_Year){ //Today 
        setBackground(Color.lightGray); 
       } 
      } 
      // getComponent(1).addFocusListener(); 

      setBorder(null); 
      setForeground(Color.blue); 
      return this; 
     } 
    } 


    //listener 

    //set prev button listener 
    static class Prev_button_Action implements ActionListener{ 
     public void actionPerformed (ActionEvent e){ 
      if (Current_Month == 0){ 
       Current_Month = 11; 
       Current_Year -= 1; 
      } 
      else{ 
       Current_Month -= 1; 
      } 
      Refresh_Calendar(Current_Month, Current_Year); 
     } 
    } 

    //set next button listener 
    static class Next_Button_Action implements ActionListener{ 
     public void actionPerformed (ActionEvent e){ 
      if (Current_Month == 11){ 
       Current_Month = 0; 
       Current_Year += 1; 
      } 
      else{ //Foward one month 
       Current_Month += 1; 
      } 
      Refresh_Calendar(Current_Month, Current_Year); 
     } 
    } 

    static class Today_Button_Action implements ActionListener{ 
     public void actionPerformed (ActionEvent e){ 

      Current_Month = Gre_Month ; 
      Current_Year = Gre_Year; 
      Refresh_Calendar(Current_Month, Current_Year); 
     } 
    } 
    static class Year_Combobox_Action implements ActionListener{ 
     public void actionPerformed (ActionEvent e){ 
      if (Year_Combobox.getSelectedItem() != null){ 
       String b = Year_Combobox.getSelectedItem().toString(); 
       Current_Year = Integer.parseInt(b); 
       Refresh_Calendar(Current_Month, Current_Year); 
      } 
     } 
    } 
} 

Answer 1

對於在JTable單元中添加動作列表器，您可以通過這種方式來完成。您可以將此Calender_Table變量重命名爲calenderTable。

calenderTable.addMouseListener(new MouseAdapter() { 
    public void mouseClicked(MouseEvent e) { 
    if (e.getClickCount() == 2) { 
     JTable target = (JTable)e.getSource(); 
     int row = target.getSelectedRow(); 
     int column = target.getSelectedColumn(); 
    // do some stuff 
    } 
    } 
});