java - 在另一台主机上部署jar时没有音频/图像

Question

以下Java代码(存储在Jar文件中)可在我的计算机上使用，但是当将其部署到另一台计算机上时，我只会看到文本，而看不到音频或图像。

有任何想法吗？

import java.awt.Color;
import java.awt.Font;
import java.util.*;
import java.io.File;
import javax.sound.sampled.AudioSystem;
import javax.sound.sampled.Clip;
import javax.swing.*;
import javax.swing.plaf.ColorUIResource;


public class SlotMachines
{
    public static void main (String[] args)
    {

        UIManager.put("OptionPane.background",new ColorUIResource(250,175,0));
        UIManager.put("Panel.background",new ColorUIResource(0,0,0));
        String ask;
        JLabel lbl = new JLabel("Input your cash?");
        lbl.setFont(new Font("Georgia", Font.BOLD, 16));
        lbl.setForeground(Color.WHITE);
        ask = JOptionPane.showInputDialog(null, lbl);
            double money = Double.parseDouble(ask);
        int again;
        int rerun = 1;
        Random generate = new Random();
        while (rerun == 1) //rerun while loop
        {
            JLabel pnl = new JLabel("Would you like to play Slots?");
            pnl.setFont(new Font("Georgia", Font.BOLD, 16));
            pnl.setForeground(Color.WHITE);    
            again = JOptionPane.showConfirmDialog (null, pnl);

            int bet = 2;

            if (again == JOptionPane.NO_OPTION)
            {
            JLabel lab = new JLabel("Your cash stays at: " + money);
            lab.setFont(new Font("Georgia", Font.BOLD, 16));
            lab.setForeground(Color.WHITE);
            JOptionPane.showMessageDialog (null, lab);
            }

            while (again == JOptionPane.YES_OPTION)
            {
                File Winner = new File("jackpot.au");
                File Mega = new File("mega.au");
                File lose = new File("lose.au");
                if (money >= 2)
                {
                    money -= bet;
                    int[] arr = new int[3];
                    for (int i = 0; i < arr.length; i++)
                    {
                        ImageIcon icon = new ImageIcon("slotmachine.jpg");
                        arr[i] = generate.nextInt(10);              
                        JLabel label = new JLabel("[" + arr[i] + "] ");
                        label.setFont(new Font("Impact", Font.BOLD, 125));
                        label.setForeground(Color.ORANGE);
                        JOptionPane.showMessageDialog (null, label, " ", JOptionPane.INFORMATION_MESSAGE, icon);

                    }
                    if (arr[0] == arr[1] && arr[1] == arr[2])
                    {

                        JLabel win = new JLabel("JACKPOT!!! BET X 5!");
                        win.setForeground(Color.CYAN);
                        PlaySound(Mega);
                        win.setFont(new Font("Arial", Font.BOLD, 140));
                        JOptionPane.showMessageDialog (null, win);
                        money += bet*5;
                    }
                    else
                    {
                        if (arr[0] == arr[1] || arr[0] == arr[2] || arr[1] == arr[2])
                    {
                            JLabel small = new JLabel("Rolling In cash! Doubles!");
                            small.setForeground(Color.magenta);
                            PlaySound(Winner);
                            small.setFont(new Font("Arial", Font.BOLD, 20));
                            JOptionPane.showMessageDialog (null, small);
                            money += bet*2;
                    }
                    }

                    JLabel cash = new JLabel("Your cash: $" + (int)money);
                    cash.setForeground(Color.GREEN);
                    cash.setFont(new Font("Georgia", Font.BOLD, 18));
                    JOptionPane.showMessageDialog (null, cash);

                    if (money >= 2)
                    {
                        JLabel big = new JLabel("Would you like to spin again?");
                        big.setForeground(Color.WHITE);
                        big.setFont(new Font("Georgia", Font.BOLD, 16));
                        again = JOptionPane.showConfirmDialog (null, big);

                        if (again != JOptionPane.YES_OPTION)
                    {
                            JLabel hell = new JLabel("You came out of hell with: $" + (int)money);
                            hell.setForeground(Color.RED);
                            hell.setFont(new Font("Georgia", Font.BOLD, 18));
                            JOptionPane.showMessageDialog (null, hell);
                            rerun = 0;
                    }
                    }

                    }
                    else
                    {
                        JLabel sorry = new JLabel("Sorry you can't afford to spin, your card is at: $" + money);
                        sorry.setForeground(Color.WHITE);
                        sorry.setFont(new Font("Georgia", Font.BOLD, 16));
                        PlaySound(lose);
                        JOptionPane.showMessageDialog (null, sorry);
                        again = JOptionPane.NO_OPTION;
                    }

            }
            rerun = 0;
        }
    }
    static void PlaySound(File Sound)
    {
        try{
            Clip clip = AudioSystem.getClip();
            clip.open(AudioSystem.getAudioInputStream(Sound));
            clip.start();

        }catch(Exception e)
        {

        }
    }
}

Answer 1

可能的两个原因:

您忘记了随身携带另一台计算机。

您将 Assets 打包到了jar中，但是您应该使用ClassLoader.getResource()来检索它们，因为它们在类路径中而不在工作目录中。像这样:

public static void playSound(String pathToMusicOnClasspath) {
    try {
        Clip clip = AudioSystem.getClip();
        clip.open(AudioSystem.getAudioInputStream(ClassLoader.getSystemResource(pathToMusicOnClasspath)));
        clip.start();
    } catch(Exception ignore) {}
}

这样称呼它:

playSound("jackpot.au");

这也应该对您的ImageIcon完成。

ImageIcon icon = new ImageIcon(ClassLoader.getSystemResource("slotmachine.jpg"));