Eclipse生成Swing应用程序以及用Java Web Start发布

Eclipse生成Swing应用程序的基本过程及示例

一、Swing工程

1、新建一个项目

项目－>Java－>Java项目，然后点击“下一步”，给项目命名为“SwingTest”，点击“完成”。

2、新建一个包

在刚才建立的项目上，点击右键，新建－>包，命名为“src”，点击“完成”。

3、新建一个类

在刚才建立的包上，点击右键，新建－>类，命名为“ButtonDemo”，点击“完成”。

代码如下：

/* 履歴

 * Copyright Intec Dalian Center, All Rights Reserved

 *

 * 富山大学教育研究活動等

 * 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 java.awt.event.*;

 

// 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; // Third radio button

    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、运行新建的类

运行－>运行为－>2.java应用程序

 

如果一切正常，OK，可以进行打包了。

5、打Jar包

项目上右键－>导出－>JAR文件，下一步，然后选择存放路径，如图1。然后继续下一步，到选择程序入口点的类。如图2。然后完成。Jar包就打好了。

                                                 图1

 

                                                        图2

 

 二、配置Java Web Start

1、  在tomcat的webapps文件夹下，新建一个文件夹，命名为“SwingTest”，然后把我们打好的jar包，放进来。

2、  同时，在新建两个文件，一个是index.html，一个是index.jnlp

内容分别如下：

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文件夹下，修改server.xml文件，增加这么一段话，具体路径按照个人具体情况来进行修改。

<Context path="/ SwingTest " reloadable="true" docBase="D:/jakarta-tomcat-4.1.30/webapps/SwingTest"/>

OK，到这里我们应该都配置好了，下面，让我们启动tomcat，来运行试一试。

在浏览器中输入http://localhost:8080/SwingTest/index.html，如果没有问题，应该出现下图所示。

 

如果这一切都出来，恭喜你，一个简单的Java Web Start发布Swing应用程序已经成功完成了。