SWING DEMO
不知道从什么时候开始，JDK包里已经看不到demo文件夹了，费了很大劲才从oracle.com上找到"JDK 7 Demos and Samples"，原来这部分已经单独提供下载，我奥特曼了。
废话少说，down下这个DEMO包并解压之，打开"demo\jfc\SwingSet2\SwingSet2.html"。
如果IE不支持applet，先确认环境变量设置了JDK的path，然后在command下进入"demo\jfc\SwingSet2"所在目录，运行"appletViewer SwingSet2.html"命令。
这个例子是SWING的DEMO，很有学习价值，里面对JTable有一个单独的介绍模块。
在"jfc\TableExample\src"中，也有几个Table的例子，其中TableExample3.java和TableExample4.java可以单独运行，其他的需要连接数据库才行。
下面把TableExample3.java贴出来学习：
/*
* Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of Oracle nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* This source code is provided to illustrate the usage of a given feature
* or technique and has been deliberately simplified. Additional steps
* required for a production-quality application, such as security checks,
* input validation and proper error handling, might not be present in
* this sample code.
*/
import javax.swing.*;
import javax.swing.table.*;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.awt.Dimension;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.UIManager.LookAndFeelInfo;
/**
* An example showing the JTable with a dataModel that is not derived
* from a database. We add the optional TableSorter object to give the
* JTable the ability to sort.
*
* @author Philip Milne
*/
public class TableExample3 {
public TableExample3() {
JFrame frame = new JFrame("Table");
frame.addWindowListener(new WindowAdapter() {
@Override
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
// Take the dummy data from SwingSet.
final String[] names = { "First Name", "Last Name", "Favorite Color",
"Favorite Number", "Vegetarian" };
final Object[][] data = {
{ "Mark", "Andrews", "Red", new Integer(2), Boolean.TRUE },
{ "Tom", "Ball", "Blue", new Integer(99), Boolean.FALSE },
{ "Alan", "Chung", "Green", new Integer(838), Boolean.FALSE },
{ "Jeff", "Dinkins", "Turquois", new Integer(8), Boolean.TRUE },
{ "Amy", "Fowler", "Yellow", new Integer(3), Boolean.FALSE },
{ "Brian", "Gerhold", "Green", new Integer(0), Boolean.FALSE },
{ "James", "Gosling", "Pink", new Integer(21), Boolean.FALSE },
{ "David", "Karlton", "Red", new Integer(1), Boolean.FALSE },
{ "Dave", "Kloba", "Yellow", new Integer(14), Boolean.FALSE },
{ "Peter", "Korn", "Purple", new Integer(12), Boolean.FALSE },
{ "Phil", "Milne", "Purple", new Integer(3), Boolean.FALSE },
{ "Dave", "Moore", "Green", new Integer(88), Boolean.FALSE },
{ "Hans", "Muller", "Maroon", new Integer(5), Boolean.FALSE },
{ "Rick", "Levenson", "Blue", new Integer(2), Boolean.FALSE },
{ "Tim", "Prinzing", "Blue", new Integer(22), Boolean.FALSE },
{ "Chester", "Rose", "Black", new Integer(0), Boolean.FALSE },
{ "Ray", "Ryan", "Gray", new Integer(77), Boolean.FALSE },
{ "Georges", "Saab", "Red", new Integer(4), Boolean.FALSE },
{ "Willie", "Walker", "Phthalo Blue", new Integer(4), Boolean.FALSE },
{ "Kathy", "Walrath", "Blue", new Integer(8), Boolean.FALSE },
{ "Arnaud", "Weber", "Green", new Integer(44), Boolean.FALSE }
};
// Create a model of the data.
@SuppressWarnings("serial")
TableModel dataModel = new AbstractTableModel() {
// These methods always need to be implemented.
public int getColumnCount() {
return names.length;
}
public int getRowCount() {
return data.length;
}
public Object getValueAt(int row, int col) {
return data[row][col];
}
// The default implementations of these methods in
// AbstractTableModel would work, but we can refine them.
@Override
public String getColumnName(int column) {
return names[column];
}
@Override
public Class getColumnClass(int col) {
return getValueAt(0, col).getClass();
}
@Override
public boolean isCellEditable(int row, int col) {
return (col == 4);
}
@Override
public void setValueAt(Object aValue, int row, int column) {
data[row][column] = aValue;
}
};
// Instead of making the table display the data as it would normally
// with:
// JTable tableView = new JTable(dataModel);
// Add a sorter, by using the following three lines instead of the one
// above.
TableSorter sorter = new TableSorter(dataModel);
JTable tableView = new JTable(sorter);
sorter.addMouseListenerToHeaderInTable(tableView);
JScrollPane scrollpane = new JScrollPane(tableView);
scrollpane.setPreferredSize(new Dimension(700, 300));
frame.getContentPane().add(scrollpane);
frame.pack();
frame.setVisible(true);
}
public static void main(String[] args) {
// Trying to set Nimbus look and feel
try {
for (LookAndFeelInfo info : UIManager.getInstalledLookAndFeels()) {
if ("Nimbus".equals(info.getName())) {
UIManager.setLookAndFeel(info.getClassName());
break;
}
}
} catch (Exception ex) {
Logger.getLogger(TableExample3.class.getName()).log(Level.SEVERE,
"Failed to apply Nimbus look and feel", ex);
}
new TableExample3();
}
}
* Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of Oracle nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* This source code is provided to illustrate the usage of a given feature
* or technique and has been deliberately simplified. Additional steps
* required for a production-quality application, such as security checks,
* input validation and proper error handling, might not be present in
* this sample code.
*/
import javax.swing.*;
import javax.swing.table.*;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.awt.Dimension;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.UIManager.LookAndFeelInfo;
/**
* An example showing the JTable with a dataModel that is not derived
* from a database. We add the optional TableSorter object to give the
* JTable the ability to sort.
*
* @author Philip Milne
*/
public class TableExample3 {
public TableExample3() {
JFrame frame = new JFrame("Table");
frame.addWindowListener(new WindowAdapter() {
@Override
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
// Take the dummy data from SwingSet.
final String[] names = { "First Name", "Last Name", "Favorite Color",
"Favorite Number", "Vegetarian" };
final Object[][] data = {
{ "Mark", "Andrews", "Red", new Integer(2), Boolean.TRUE },
{ "Tom", "Ball", "Blue", new Integer(99), Boolean.FALSE },
{ "Alan", "Chung", "Green", new Integer(838), Boolean.FALSE },
{ "Jeff", "Dinkins", "Turquois", new Integer(8), Boolean.TRUE },
{ "Amy", "Fowler", "Yellow", new Integer(3), Boolean.FALSE },
{ "Brian", "Gerhold", "Green", new Integer(0), Boolean.FALSE },
{ "James", "Gosling", "Pink", new Integer(21), Boolean.FALSE },
{ "David", "Karlton", "Red", new Integer(1), Boolean.FALSE },
{ "Dave", "Kloba", "Yellow", new Integer(14), Boolean.FALSE },
{ "Peter", "Korn", "Purple", new Integer(12), Boolean.FALSE },
{ "Phil", "Milne", "Purple", new Integer(3), Boolean.FALSE },
{ "Dave", "Moore", "Green", new Integer(88), Boolean.FALSE },
{ "Hans", "Muller", "Maroon", new Integer(5), Boolean.FALSE },
{ "Rick", "Levenson", "Blue", new Integer(2), Boolean.FALSE },
{ "Tim", "Prinzing", "Blue", new Integer(22), Boolean.FALSE },
{ "Chester", "Rose", "Black", new Integer(0), Boolean.FALSE },
{ "Ray", "Ryan", "Gray", new Integer(77), Boolean.FALSE },
{ "Georges", "Saab", "Red", new Integer(4), Boolean.FALSE },
{ "Willie", "Walker", "Phthalo Blue", new Integer(4), Boolean.FALSE },
{ "Kathy", "Walrath", "Blue", new Integer(8), Boolean.FALSE },
{ "Arnaud", "Weber", "Green", new Integer(44), Boolean.FALSE }
};
// Create a model of the data.
@SuppressWarnings("serial")
TableModel dataModel = new AbstractTableModel() {
// These methods always need to be implemented.
public int getColumnCount() {
return names.length;
}
public int getRowCount() {
return data.length;
}
public Object getValueAt(int row, int col) {
return data[row][col];
}
// The default implementations of these methods in
// AbstractTableModel would work, but we can refine them.
@Override
public String getColumnName(int column) {
return names[column];
}
@Override
public Class getColumnClass(int col) {
return getValueAt(0, col).getClass();
}
@Override
public boolean isCellEditable(int row, int col) {
return (col == 4);
}
@Override
public void setValueAt(Object aValue, int row, int column) {
data[row][column] = aValue;
}
};
// Instead of making the table display the data as it would normally
// with:
// JTable tableView = new JTable(dataModel);
// Add a sorter, by using the following three lines instead of the one
// above.
TableSorter sorter = new TableSorter(dataModel);
JTable tableView = new JTable(sorter);
sorter.addMouseListenerToHeaderInTable(tableView);
JScrollPane scrollpane = new JScrollPane(tableView);
scrollpane.setPreferredSize(new Dimension(700, 300));
frame.getContentPane().add(scrollpane);
frame.pack();
frame.setVisible(true);
}
public static void main(String[] args) {
// Trying to set Nimbus look and feel
try {
for (LookAndFeelInfo info : UIManager.getInstalledLookAndFeels()) {
if ("Nimbus".equals(info.getName())) {
UIManager.setLookAndFeel(info.getClassName());
break;
}
}
} catch (Exception ex) {
Logger.getLogger(TableExample3.class.getName()).log(Level.SEVERE,
"Failed to apply Nimbus look and feel", ex);
}
new TableExample3();
}
}
学习点：
1、怎么把Jtable对象和数据联系起来？答：用TableModel
TableModel 实现了JTable操作数据必须的一些方法，将TableModel给JTable，就是将CPU安装到主板。
2、Jtable的Header如何实现排序？答：用TableSorter
如果只想把TableModel给Jtable，可以直接 JTable tableView = new JTable( dataModel );
下面的写法是为了实现表的Header排序：
TableSorter sorter = new TableSorter(dataModel);
JTable tableView = new JTable(sorter);
sorter.addMouseListenerToHeaderInTable(tableView);
第三行的意思是在鼠标点击表头的时候实现排序，也就是说，何时触发排序可灵活配置。
3、frame.pack();有什么用？
答：我自己试了下，如果把 frame.pack();注释掉运行，我看到的frame是最小size的，只有仨按钮在那，需要
手动拖窗口才能看到内容。如果去掉注释，frame会根据内容的大小自动调节初始的大小。这也是这行的作用。