在IDE（BlueJ）中执行代码时运行正常。但是在我创建了包含所有资源和清单的JAR文件之后，Swing组件不再需要加载。当我从命令行运行它而不是使用“java -jar AntiJumbler.jar”双击图标时，抛出了ClassNotFoundException：
线程“main”中的异常java.lang.NoClassDefFoundError： AntiJumbler $ 1 在AntiJumbler。（AntiJumbler.java:37） 在AntiJumbler.main（AntiJumbler.java:182）引起：java.lang.ClassNotFoundException：AntiJumbler $ 1 at java.net.URLClassLoader.findClass（URLClassLoader.java:381） at java.lang.ClassLoader.loadClass（ClassLoader.java:424） at sun.misc.Launcher $ AppClassLoader.loadClass（Launcher.java:331） at java.lang.ClassLoader.loadClass（ClassLoader.java:357） ......还有2个
这是我的代码：
import java.io.*;
import java.util.*;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.net.*;
public class AntiJumbler extends JFrame
{
JTextField word; //The user enters the jumbled word here...
JTextArea solution; //Used to display messages for the user; Solutions are displayed here...
JTextArea name, name2; //a banner that reads ANTIJUMBLER...
JCheckBox def;
AntiJumbler()
{
//Preparing the JFrame...
super("AntiJumbler");
URL url = AntiJumbler.class.getResource("background.png");
setLayout(new BorderLayout());
setContentPane(new JLabel(new ImageIcon(url))); //background.png: the background image...
setSize(500, 300);
setResizable(false);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setLayout(new BorderLayout());
setVisible(true);
//...The JFrame is now ready.
//word...
word = new JTextField();
word.setForeground(Color.white);;
Font font_1 = new Font("Arial", Font.BOLD, 14);
word.setFont(font_1);
word.setOpaque(false);
word.setCaretColor(Color.white);
word.setBackground(new Color(0.5f, 0.5f, 0.5f, 0.5f)) ;
word.addActionListener(
new ActionListener()
{
public void actionPerformed(ActionEvent ae)
{
if(ae.getActionCommand()!=null && ae.getActionCommand().trim().length()>0 && ae.getActionCommand().matches("[a-zA-Z]+"))
try{
solution.setText("\nUnjumbling " + ae.getActionCommand() + "...");
String[] ans = solve(ae.getActionCommand().trim().toLowerCase());
String str1 = (ans.length==0)?"No":Integer.toString(ans.length);
String str2 = (ans.length)>1?" matches":" match";
solution.append("\n\n" + str1 + str2 + " found...");
for(String temp: ans)
{
solution.append("\n\n" + temp);
if(def.isSelected() && Desktop.isDesktopSupported())
Desktop.getDesktop().browse(new java.net.URI("https://dictionary.reference.com/browse/"+temp));
}
}
catch(Exception e)
{}
if(ae.getActionCommand().matches("[a-zA-Z]+")==false && ae.getActionCommand().trim().length()>0)
solution.setText("\nSorry. Jumbled words can contain only letters.\n\nAntiJumbler is a simple application to unjumble jumbled words.\n\nAntiJumbler is developed by Arpan.");
word.setText("");
}
}
);
add("North", word);
//...word is now ready for use
//solution...
solution = new JTextArea();
solution.setOpaque(false);
solution.setForeground(Color.white);
solution.setEditable(false);
Font font2 = new Font("Arial", Font.BOLD, 15);
solution.setFont(font2);
solution.setText("\n\n\n\nAntiJumbler is a simple application to unjumble jumbled words.\nEnter a jumbled word in the above textfield to begin.\nAntiJumbler is developed by Arpan.");
JScrollPane jp = new JScrollPane(solution);
jp.setBorder(null);
jp.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);
jp.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);
jp.getViewport().setOpaque(false);
jp.setOpaque(false);
jp.setBackground(new Color(50, 50, 60, 250));
jp.getVerticalScrollBar().addAdjustmentListener(new AdjustmentListener() {
@Override
public void adjustmentValueChanged(final AdjustmentEvent e) {
repaint();
}
});
jp.getHorizontalScrollBar().addAdjustmentListener(new AdjustmentListener() {
@Override
public void adjustmentValueChanged(final AdjustmentEvent e) {
repaint();
}
});
add("Center", jp);
//...solution is now ready for use
//name...
name = new JTextArea();
name.setBorder(null);
Font font = new Font("Algerian", Font.BOLD, 15);
name.setFont(font);
name.setForeground(Color.cyan);
name.setOpaque(false);
name.setText("A\nN\nT\nI\nJ\nU\nM\nB\nL\nE\nR");
name.setEditable(false);
add("West", name);
name2 = new JTextArea();
name2.setBorder(null);
name2.setFont(font);
name2.setForeground(Color.cyan);
name2.setOpaque(false);
name2.setText("A\nN\nT\nI\nJ\nU\nM\nB\nL\nE\nR");
name2.setEditable(false);
add("East", name2);
//...name
def = new JCheckBox("Open Definitions in Web Browser");
def.setOpaque(false);
def.setForeground(Color.white);
add("South", def);
setVisible(true);
revalidate();
repaint();
}
//This method checks whether two strings are anagrams or not...
boolean areAnagrams(String x, String y)
{
String x_copy = x.replaceAll(" ", "");
String y_copy = y.replaceAll(" ", "");
if(x_copy.length()!=y_copy.length())
return false;
char x_arr[] = x_copy.toLowerCase().toCharArray();
char y_arr[] = y_copy.toLowerCase().toCharArray();
Arrays.sort(x_arr);
Arrays.sort(y_arr);
return Arrays.equals(x_arr, y_arr);
}
//This method returns the set of solutions for a jumbled word...
String[] solve(String x)
{
URL url = AntiJumbler.class.getResource("dict.txt");
Scanner sc;
File dictionary=new File("dict.txt");
try
{
try
{
dictionary = new File(url.toURI());
}
catch(URISyntaxException e)
{
dictionary = new File(url.getPath());
}
sc = new Scanner(dictionary);
ArrayList<String> words = new ArrayList<String>();
while(sc.hasNextLine())
{
String i = sc.nextLine();
if(areAnagrams(i, x))
words.add(i);
}
return (String[])words.toArray(new String[0]);
}
catch(FileNotFoundException e)
{
final JPanel panel = new JPanel();
JOptionPane.showMessageDialog(panel, "dict.txt not found in the same folder!", "Error", JOptionPane.ERROR_MESSAGE);
System.exit(0);
}
catch(InputMismatchException e)
{}
return new String[0];
}
static public void main(String[] args)throws Exception
{
AntiJumbler arpan = new AntiJumbler();
}
}
任何形式的帮助都将受到高度赞赏。提前谢谢！