Swing之JTable篇综合例子，在表中插入一行记录，对表列排序等

例子：通过实现AbstractTableModel接口实现即使向表中增加一行记录

Java代码 
import java.awt.BorderLayout;   
import java.awt.Point;   
import java.awt.event.ActionEvent;   
import java.awt.event.ActionListener;   
import java.awt.event.ComponentAdapter;   
import java.awt.event.ComponentEvent;   
import java.util.Vector;   

import javax.swing.JFrame;   
import javax.swing.JScrollPane;   
import javax.swing.JTable;   
import javax.swing.JTextField;   
import javax.swing.JViewport;   
import javax.swing.SwingUtilities;   
import javax.swing.table.AbstractTableModel;   

public class RowAdder extends JFrame {   

final SimpleModel tableData = new SimpleModel();   
JTable table = new JTable(tableData);   

public static void main(String[] args) {   
    RowAdder ra = new RowAdder();   
    ra.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);   
    ra.setSize(400, 300);   
    ra.setVisible(true);   
}   

public RowAdder() {   
    final JTextField textField = new JTextField();   
    setLayout(new BorderLayout());   
    add(new JScrollPane(table), BorderLayout.CENTER);   
    textField.addActionListener(new ActionListener() {   
      public void actionPerformed(ActionEvent event) {   
        tableData.addText(textField.getText());   
        textField.setText("");   
      }   
    });   
    add(textField, BorderLayout.SOUTH);   
}   

}   
class SimpleModel extends AbstractTableModel {   

Vector textData = new Vector();   

public void addText(String text) {   
    textData.addElement(text);   
    fireTableDataChanged();   
}   

public int getRowCount() {   
    return textData.size();   
}   

public int getColumnCount() {   
    return 3;   
}   

public Object getValueAt(int row, int column) {   
    return textData.elementAt(row);   
}   

} 
import java.awt.BorderLayout;
import java.awt.Point;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ComponentAdapter;
import java.awt.event.ComponentEvent;
import java.util.Vector;

import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextField;
import javax.swing.JViewport;
import javax.swing.SwingUtilities;
import javax.swing.table.AbstractTableModel;

public class RowAdder extends JFrame {

final SimpleModel tableData = new SimpleModel();
JTable table = new JTable(tableData);

public static void main(String[] args) {
    RowAdder ra = new RowAdder();
    ra.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    ra.setSize(400, 300);
    ra.setVisible(true);
}

public RowAdder() {
    final JTextField textField = new JTextField();
    setLayout(new BorderLayout());
    add(new JScrollPane(table), BorderLayout.CENTER);
    textField.addActionListener(new ActionListener() {
      public void actionPerformed(ActionEvent event) {
        tableData.addText(textField.getText());
        textField.setText("");
      }
    });
    add(textField, BorderLayout.SOUTH);
}

}
class SimpleModel extends AbstractTableModel {

Vector textData = new Vector();

public void addText(String text) {
    textData.addElement(text);
    fireTableDataChanged();
}

public int getRowCount() {
    return textData.size();
}

public int getColumnCount() {
    return 3;
}

public Object getValueAt(int row, int column) {
    return textData.elementAt(row);
}

}



例子：对表列实现排序

Java代码 
import java.awt.BorderLayout;   
import java.awt.GridLayout;   

import javax.swing.JFrame;   
import javax.swing.JPanel;   
import javax.swing.JScrollPane;   
import javax.swing.JTable;   
import javax.swing.event.TableModelEvent;   
import javax.swing.event.TableModelListener;   
import javax.swing.table.AbstractTableModel;   
import javax.swing.table.DefaultTableModel;   
import javax.swing.table.TableModel;   

class SampleSortingTableModel extends AbstractTableModel implements TableModelListener {   
protected TableModel base;   

protected int sortColumn;   

protected int[] row;   

public SampleSortingTableModel(TableModel tm, int sortColumn) {   
    this.base = tm;   
    this.sortColumn = sortColumn;   
    tm.addTableModelListener(this);   
    rebuild();   
}   

public Class getColumnClass(int c) {   
    return base.getColumnClass(c);   
}   

public int getColumnCount() {   
    return base.getColumnCount();   
}   

public String getColumnName(int c) {   
    return base.getColumnName(c);   
}   

public int getRowCount() {   
    return base.getRowCount();   
}   

public Object getValueAt(int r, int c) {   
    return base.getValueAt(row[r], c);   
}   

public boolean isCellEditable(int r, int c) {   
    return base.isCellEditable(row[r], c);   
}   

public void setValueAt(Object value, int r, int c) {   
    base.setValueAt(value, row[r], c); // Notification will cause re-sort   
}   

public void tableChanged(TableModelEvent event) {   
    rebuild();   
}   

protected void rebuild() {   
    int size = base.getRowCount();   
    row = new int[size];   
    for (int i = 0; i < size; i++) {   
      row[i] = i;   
    }   
    sort();   
}   

protected void sort() { // Sort and notify listeners   
    for (int i = 1; i < row.length; i++) {   
      int j = i;   
      while (j > 0 && compare(j - 1, j) > 0) {   
        int temp = row[j];   
        row[j] = row[j - 1];   
        row[j - 1] = temp;   
        j--;   
      }   
    }   
    fireTableStructureChanged();   
}   

protected int compare(int i, int j) {   
    String s1 = base.getValueAt(row[i], sortColumn).toString();   
    String s2 = base.getValueAt(row[j], sortColumn).toString();   
    return s1.compareTo(s2);   
}   
}   

public class SortableTableModelAbstractTableModel extends JFrame {   
DefaultTableModel model = new DefaultTableModel(new Object[][] { { "this", "1" },   
      { "text", "2" }, { "will", "3" }, { "be", "4" }, { "sorted", "5" } }, new Object[] {   
      "Column 1", "Column 2" });   

public SortableTableModelAbstractTableModel() {   
    setDefaultCloseOperation(EXIT_ON_CLOSE);   
    JTable tableOrig = new JTable(model);   
    tableOrig.setAutoResizeMode(JTable.AUTO_RESIZE_ALL_COLUMNS);   
    JTable tableSorted = new JTable(new SampleSortingTableModel(model, 0));   
    tableSorted.setAutoResizeMode(JTable.AUTO_RESIZE_ALL_COLUMNS);   
    JPanel panel = new JPanel(new GridLayout(1, 2));   
    panel.add(new JScrollPane(tableOrig));   
    panel.add(new JScrollPane(tableSorted));   
    getContentPane().add(panel, BorderLayout.CENTER);   
    pack();   
}   

public static void main(String arg[]) {   
    new SortableTableModelAbstractTableModel().setVisible(true);   
}   
} 
import java.awt.BorderLayout;
import java.awt.GridLayout;

import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.event.TableModelEvent;
import javax.swing.event.TableModelListener;
import javax.swing.table.AbstractTableModel;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableModel;

class SampleSortingTableModel extends AbstractTableModel implements TableModelListener {
protected TableModel base;

protected int sortColumn;

protected int[] row;

public SampleSortingTableModel(TableModel tm, int sortColumn) {
    this.base = tm;
    this.sortColumn = sortColumn;
    tm.addTableModelListener(this);
    rebuild();
}

public Class getColumnClass(int c) {
    return base.getColumnClass(c);
}

public int getColumnCount() {
    return base.getColumnCount();
}

public String getColumnName(int c) {
    return base.getColumnName(c);
}

public int getRowCount() {
    return base.getRowCount();
}

public Object getValueAt(int r, int c) {
    return base.getValueAt(row[r], c);
}

public boolean isCellEditable(int r, int c) {
    return base.isCellEditable(row[r], c);
}

public void setValueAt(Object value, int r, int c) {
    base.setValueAt(value, row[r], c); // Notification will cause re-sort
}

public void tableChanged(TableModelEvent event) {
    rebuild();
}

protected void rebuild() {
    int size = base.getRowCount();
    row = new int[size];
    for (int i = 0; i < size; i++) {
      row[i] = i;
    }
    sort();
}

protected void sort() { // Sort and notify listeners
    for (int i = 1; i < row.length; i++) {
      int j = i;
      while (j > 0 && compare(j - 1, j) > 0) {
        int temp = row[j];
        row[j] = row[j - 1];
        row[j - 1] = temp;
        j--;
      }
    }
    fireTableStructureChanged();
}

protected int compare(int i, int j) {
    String s1 = base.getValueAt(row[i], sortColumn).toString();
    String s2 = base.getValueAt(row[j], sortColumn).toString();
    return s1.compareTo(s2);
}
}

public class SortableTableModelAbstractTableModel extends JFrame {
DefaultTableModel model = new DefaultTableModel(new Object[][] { { "this", "1" },
      { "text", "2" }, { "will", "3" }, { "be", "4" }, { "sorted", "5" } }, new Object[] {
      "Column 1", "Column 2" });

public SortableTableModelAbstractTableModel() {
    setDefaultCloseOperation(EXIT_ON_CLOSE);
    JTable tableOrig = new JTable(model);
    tableOrig.setAutoResizeMode(JTable.AUTO_RESIZE_ALL_COLUMNS);
    JTable tableSorted = new JTable(new SampleSortingTableModel(model, 0));
    tableSorted.setAutoResizeMode(JTable.AUTO_RESIZE_ALL_COLUMNS);
    JPanel panel = new JPanel(new GridLayout(1, 2));
    panel.add(new JScrollPane(tableOrig));
    panel.add(new JScrollPane(tableSorted));
    getContentPane().add(panel, BorderLayout.CENTER);
    pack();
}

public static void main(String arg[]) {
    new SortableTableModelAbstractTableModel().setVisible(true);
}
}



例子：用表格实现日历控件

Java代码 
import java.awt.Color;   
import java.awt.Container;   
import java.awt.event.ItemEvent;   
import java.awt.event.ItemListener;   

import javax.swing.JComboBox;   
import javax.swing.JFrame;   
import javax.swing.JList;   
import javax.swing.JScrollPane;   
import javax.swing.JTable;   
import javax.swing.event.ListSelectionEvent;   
import javax.swing.event.ListSelectionListener;   
import javax.swing.table.AbstractTableModel;   

public class Calendar extends JFrame {   
String[] years = { "2008", "2009", "2010" };   

JComboBox comboBox = new JComboBox(years);   

String[] months = { "January", "February", "March", "April", "May", "June", "July", "August",   
      "September", "October", "November", "December" };   

JList list = new JList(months);   

JScrollPane scrollPane = new JScrollPane(list);   

CalendarModel model = new CalendarModel();   

JTable table = new JTable(model);   

public Calendar() {   
    super();   

    getContentPane().setLayout(null);   
    comboBox.setBounds(10, 10, 100, 30);   
    comboBox.setSelectedIndex(0);   
    comboBox.addItemListener(new ComboHandler());   
    scrollPane.setBounds(200, 10, 150, 100);   
    list.setSelectedIndex(3);   
    list.addListSelectionListener(new ListHandler());   
    table.setBounds(10, 150, 550, 200);   
    model.setMonth(comboBox.getSelectedIndex() + 1998, list.getSelectedIndex());   
    getContentPane().add(comboBox);   
    getContentPane().add(scrollPane);   
    table.setGridColor(Color.black);   
    table.setShowGrid(true);   
    getContentPane().add(table);   

    this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);   

    setSize(500, 500);   
    setVisible(true);   
}   

public static void main(String[] args) {   
    Calendar app = new Calendar();   
}   
public class ComboHandler implements ItemListener {   
    public void itemStateChanged(ItemEvent e) {   
      model.setMonth(comboBox.getSelectedIndex() + 1998, list.getSelectedIndex());   
      table.repaint();   
    }   
}   

public class ListHandler implements ListSelectionListener {   
    public void valueChanged(ListSelectionEvent e) {   
      model.setMonth(comboBox.getSelectedIndex() + 1998, list.getSelectedIndex());   
      table.repaint();   
    }   
}   
}   
class CalendarModel extends AbstractTableModel {   
String[] days = { "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" };   

int[] numDays = { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };   

String[][] calendar = new String[7][7];   

public CalendarModel() {   
    for (int i = 0; i < days.length; ++i)   
      calendar[0][i] = days[i];   
    for (int i = 1; i < 7; ++i)   
      for (int j = 0; j < 7; ++j)   
        calendar[i][j] = " ";   
}   

public int getRowCount() {   
    return 7;   
}   

public int getColumnCount() {   
    return 7;   
}   

public Object getValueAt(int row, int column) {   
    return calendar[row][column];   
}   

public void setValueAt(Object value, int row, int column) {   
    calendar[row][column] = (String) value;   
}   

public void setMonth(int year, int month) {   
    for (int i = 1; i < 7; ++i)   
      for (int j = 0; j < 7; ++j)   
        calendar[i][j] = " ";   
    java.util.GregorianCalendar cal = new java.util.GregorianCalendar();   
    cal.set(year, month, 1);   
    int offset = cal.get(java.util.GregorianCalendar.DAY_OF_WEEK) - 1;   
    offset += 7;   
    int num = daysInMonth(year, month);   
    for (int i = 0; i < num; ++i) {   
      calendar[offset / 7][offset % 7] = Integer.toString(i + 1);   
      ++offset;   
    }   
}   

public boolean isLeapYear(int year) {   
    if (year % 4 == 0)   
      return true;   
    return false;   
}   

public int daysInMonth(int year, int month) {   
    int days = numDays[month];   
    if (month == 1 && isLeapYear(year))   
      ++days;   
    return days;   
}   
} 
import java.awt.Color;
import java.awt.Container;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;

import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JList;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;
import javax.swing.table.AbstractTableModel;

public class Calendar extends JFrame {
String[] years = { "2008", "2009", "2010" };

JComboBox comboBox = new JComboBox(years);

String[] months = { "January", "February", "March", "April", "May", "June", "July", "August",
      "September", "October", "November", "December" };

JList list = new JList(months);

JScrollPane scrollPane = new JScrollPane(list);

CalendarModel model = new CalendarModel();

JTable table = new JTable(model);

public Calendar() {
    super();

    getContentPane().setLayout(null);
    comboBox.setBounds(10, 10, 100, 30);
    comboBox.setSelectedIndex(0);
    comboBox.addItemListener(new ComboHandler());
    scrollPane.setBounds(200, 10, 150, 100);
    list.setSelectedIndex(3);
    list.addListSelectionListener(new ListHandler());
    table.setBounds(10, 150, 550, 200);
    model.setMonth(comboBox.getSelectedIndex() + 1998, list.getSelectedIndex());
    getContentPane().add(comboBox);
    getContentPane().add(scrollPane);
    table.setGridColor(Color.black);
    table.setShowGrid(true);
    getContentPane().add(table);

    this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    setSize(500, 500);
    setVisible(true);
}

public static void main(String[] args) {
    Calendar app = new Calendar();
}
public class ComboHandler implements ItemListener {
    public void itemStateChanged(ItemEvent e) {
      model.setMonth(comboBox.getSelectedIndex() + 1998, list.getSelectedIndex());
      table.repaint();
    }
}

public class ListHandler implements ListSelectionListener {
    public void valueChanged(ListSelectionEvent e) {
      model.setMonth(comboBox.getSelectedIndex() + 1998, list.getSelectedIndex());
      table.repaint();
    }
}
}
class CalendarModel extends AbstractTableModel {
String[] days = { "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" };

int[] numDays = { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };

String[][] calendar = new String[7][7];

public CalendarModel() {
    for (int i = 0; i < days.length; ++i)
      calendar[0][i] = days[i];
    for (int i = 1; i < 7; ++i)
      for (int j = 0; j < 7; ++j)
        calendar[i][j] = " ";
}

public int getRowCount() {
    return 7;
}

public int getColumnCount() {
    return 7;
}

public Object getValueAt(int row, int column) {
    return calendar[row][column];
}

public void setValueAt(Object value, int row, int column) {
    calendar[row][column] = (String) value;
}

public void setMonth(int year, int month) {
    for (int i = 1; i < 7; ++i)
      for (int j = 0; j < 7; ++j)
        calendar[i][j] = " ";
    java.util.GregorianCalendar cal = new java.util.GregorianCalendar();
    cal.set(year, month, 1);
    int offset = cal.get(java.util.GregorianCalendar.DAY_OF_WEEK) - 1;
    offset += 7;
    int num = daysInMonth(year, month);
    for (int i = 0; i < num; ++i) {
      calendar[offset / 7][offset % 7] = Integer.toString(i + 1);
      ++offset;
    }
}

public boolean isLeapYear(int year) {
    if (year % 4 == 0)
      return true;
    return false;
}

public int daysInMonth(int year, int month) {
    int days = numDays[month];
    if (month == 1 && isLeapYear(year))
      ++days;
    return days;
}
}