Eclipse生成Swing應用程式以及用Java Web Start釋出
Eclipse生成Swing應用程式的基本過程及示例<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" />
一、Swing工程
1、新建一個專案
專案－>Java－>Java專案，然後點選“下一步”，給專案命名為“SwingTest”，點選“完成”。
2、新建一個包
在剛才建立的專案上，點選右鍵，新建－>包，命名為“src”，點選“完成”。
3、新建一個類
在剛才建立的包上，點選右鍵，新建－>類，命名為“ButtonDemo”，點選“完成”。
程式碼如下：
/* 履歴
* Copyright Intec Dalian Center, All Rights Reserved
*
* 富山大學教育研究活動等
* 業績データベースシステム
*
* パッケージ名：
* クラス名：ButtonDemo.java
*
* 作成者：Industrial Systems Dept. 0B6167
*
* バージョン：1.00 2004-7-14
*
*/
package src;
import javax.swing.*;
import javax.swing.border.*;
import javax.swing.event.*;
import java.awt.*;
import
// The main program class
public class ButtonDemo extends JFrame implements ActionListener {
// GUI objects displayed in the frame window
ButtonGroup group; // Groups radio buttons
JRadioButton redButton; // First radio button
JRadioButton whiteButton; // Second radio button
JRadioButton blueButton;
JPanel colorBox; // Displays selected color
JCheckBox showColorsButton; // First check box
JCheckBox exitOnCloseButton; // Second check box
JButton exitButton; // Plain button
// Constructor initializes the GUI objects and panels
public ButtonDemo() {
// Select local system look and feel
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
//UIManager.getCrossPlatformLookAndFeelClassName());
} catch (Exception e) {
}
// End program when window closes
addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
//==========================================================
// Radio button panel and GUI objects
//==========================================================
// Create radio button panel and an inner pane
// to help display the GUI objects neatly
JPanel radioPane = new JPanel();
JPanel innerRadioPane = new JPanel();
radioPane.setBorder(BorderFactory.createBevelBorder(BevelBorder.RAISED));
innerRadioPane.setLayout(new BoxLayout(innerRadioPane, BoxLayout.Y_AXIS));
innerRadioPane.setBorder(BorderFactory.createEmptyBorder(10, 10, 10, 10));
// Construct the radio group and its buttons
// All button events go to the program's ActionListener
group = new ButtonGroup();
redButton = new JRadioButton("Red");
whiteButton = new JRadioButton("White");
blueButton = new JRadioButton("Blue ");
whiteButton.setSelected(true); // Select one button
redButton.addActionListener(this); // See ActionPerformed()
whiteButton.addActionListener(this);
blueButton.addActionListener(this);
group.add(redButton); // The group ensures that when one
group.add(whiteButton); // button is selected, the previously
group.add(blueButton); // selected button is turned off
// Construct a small panel for displaying the selected color
colorBox = new JPanel();
colorBox.setBackground(Color.white);
colorBox.setPreferredSize(new Dimension(50, 50));
// Add the GUI objects to the inner radio pane
innerRadioPane.add(redButton);
innerRadioPane.add(whiteButton);
innerRadioPane.add(blueButton);
innerRadioPane.add(Box.createRigidArea(new Dimension(0, 25))); // Spacer
innerRadioPane.add(colorBox);
// Add the inner pane to the raised radio panel (left side)
radioPane.add(innerRadioPane);
//==========================================================
// Check box panel and GUI objects
//==========================================================
// Create check box panel and an inner panel
// for a neat appearance
JPanel checkPane = new JPanel();
JPanel innerCheckPane = new JPanel();
checkPane.setBorder(BorderFactory.createBevelBorder(BevelBorder.RAISED));
innerCheckPane.setLayout(new BoxLayout(innerCheckPane, BoxLayout.Y_AXIS));
innerCheckPane.setBorder(BorderFactory.createEmptyBorder(10, 10, 10, 10));
// Create the "show colors" check box object and
// enable or disable the color radio buttons
showColorsButton = new JCheckBox("Show colors");
showColorsButton.setSelected(true);
showColorsButton.addChangeListener(new ChangeListener() {
public void stateChanged(ChangeEvent e) {
boolean t = showColorsButton.isSelected();
redButton.setEnabled(t); // Enable or disable all
whiteButton.setEnabled(t); // radio buttons depending on
blueButton.setEnabled(t); // state of check box
}
});
// Create the "exit on close" check box object and
// enable or disable the Exit Program button
exitOnCloseButton = new JCheckBox("Exit on close");
exitOnCloseButton.addChangeListener(new ChangeListener() {
public void stateChanged(ChangeEvent e) {
boolean t = exitOnCloseButton.isSelected();
exitButton.setEnabled(t);
}
});
// Create the plain "Exit Program" button
// and its action event listener
exitButton = new JButton("Exit Program");
exitButton.setEnabled(false); // Initially disabled
exitButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
System.exit(0);
}
});
// Add the buttons to the inner pane
innerCheckPane.add(showColorsButton);
innerCheckPane.add(exitOnCloseButton);
innerCheckPane.add(Box.createRigidArea(new Dimension(0, 50)));
innerCheckPane.add(exitButton);
// Add the inner pane to the raised check box panel
checkPane.add(innerCheckPane);
// Add the panels and GUI objects to the frame's content pane
Container content = getContentPane();
content.setLayout(new GridLayout(1, 3, 2, 2));
content.add(radioPane);
content.add(checkPane);
}
// Change the colorBox background color when user
// selects a radio button.
public void actionPerformed(ActionEvent e) {
Color c;
if (redButton.isSelected())
c = Color.red;
else if (whiteButton.isSelected())
c = Color.white;
else
c = Color.blue;
colorBox.setBackground(c);
}
// Main program simply constructs the ButtonDemo
// application object, and then sizes and shows the window
public static void main(String[] args) {
ButtonDemo app = new ButtonDemo();
app.setTitle("Button and Check Box Demo");
app.setSize(320, 240);
app.show();
}
}
4、執行新建的類
執行－>執行為－>2.java應用程式
如果一切正常，OK，可以進行打包了。
5、打Jar包
專案上右鍵－>匯出－>JAR檔案，下一步，然後選擇存放路徑，如圖1。然後繼續下一步，到選擇程式入口點的類。如圖2。然後完成。Jar包就打好了。
<?xml:namespace prefix = v ns = "urn:schemas-microsoft-com:vml" />
圖1
圖2
二、配置Java Web Start
1、在tomcat的webapps資料夾下，新建一個資料夾，命名為“SwingTest”，然後把我們打好的jar包，放進來。
2、同時，在新建兩個檔案，一個是index.html，一個是index.jnlp
內容分別如下：
Index.html
<a href="index.jnlp">Launch Application</a>
index.jnlp
<?xml version="1.0" encoding="utf-8"?>
<jnlp spec="1.0+" codebase="http://localhost:8080/SwingTest" href="index.jnlp">
<information>
<title>HelloWorld</title>
<vendor>IBM - JWS example of HelloWorld</vendor>
<description>HelloWorld - Example of JWS</description>
<description kind="short">HelloWorld example</description>
</information>
<resources>
<j2se version="1.4"/>
<jar href="hello.jar"/>
</resources>
<application-desc main-class="src.ButtonDemo"/>
</jnlp>
3、在tomcat的conf資料夾下，修改server.xml檔案，增加這麼一段話，具體路徑按照個人具體情況來進行修改。
<Context path="/ SwingTest " reloadable="true" docBase="D:/jakarta-tomcat-4.1.30/webapps/SwingTest"/>
OK，到這裡我們應該都配置好了，下面，讓我們啟動tomcat，來執行試一試。
如果這一切都出來，恭喜你，一個簡單的Java Web Start釋出Swing應用程式已經成功完成了。