当我以导出的jar运行时，得到FileNotFound实例

Question

我正在创建一个运行一些声音文件的程序。当我在IDE（Eclipse）中运行它时，它运行良好，但是从jar运行时，文件的路径似乎已更改。该项目的路径是：

MyProject: 
           src (in build path):
                package:
                       AudioFile.java
                       SoundEffectManager.java
           assets (in build path):
                 sounds:
                      soundfile.wav

以及读取文件的AudioFile.java的代码：

import java.io.File;

import javax.sound.sampled.AudioFormat;
import javax.sound.sampled.AudioInputStream;
import javax.sound.sampled.AudioSystem;
import javax.sound.sampled.Clip;
import javax.sound.sampled.DataLine;
import javax.sound.sampled.LineEvent;
import javax.sound.sampled.LineListener;

public class AudioFile implements LineListener {
    private File audioFile;
    private boolean paused = false;
    private AudioInputStream ais;
    private AudioFormat format;
    private DataLine.Info info;
    private Clip clip;
    private volatile boolean playing;

   // Constructor
    public AudioFile(String fileName) {
        try {
        audioFile = new File(fileName);
        ais = AudioSystem.getAudioInputStream(audioFile);
        format = ais.getFormat();
        info = new DataLine.Info(Clip.class, format);
        clip = (Clip) AudioSystem.getLine(info);
        clip.addLineListener(this);
        clip.open(ais);
        } catch (Exception e) {
            e.printStackTrace();
            System.exit(1);
        }
    }
    // Play Pause and other helpers
    public void play() {
        clip.start();
        playing = true;
    }

    public boolean isPlaying() {
        return playing;
    }

    public void stop() {
        clip.stop();
        clip.flush();
        clip.setFramePosition(0);
        playing = false;
    }

    public void pause() {
        if (!paused) {
        paused = true;
        clip.stop();
        }
    }
    public void resume() {
        if (paused) {
            clip.start();
            paused = false;
        } 
    }
    @Override
    public void update(LineEvent event) {
        if (event.getType() == LineEvent.Type.START && !paused) {
            playing = true;
        }
        else if (event.getType() == LineEvent.Type.STOP && !paused) {
            clip.stop();
            clip.flush();
            clip.setFramePosition(0);
            playing = false;
            paused = false;
        }

    } 

}

SoundEffectManager.java的创建音频文件的代码（省略了助手和导入）

public class SoundEffectManager implements Runnable {
    private ArrayList<AudioFile> soundList;
    private volatile boolean running;
    public volatile ArrayList<AudioFile> playingSounds;
    public SoundEffectManager(String... sounds) {
        soundList = new ArrayList<AudioFile>();
        for(String sound : sounds) {
            soundList.add(new AudioFile("./assets/sounds/" + sound + ".wav"));
        }

    }
}

当调用SoundEffectManager构造函数时，将使用以下参数调用它：“ soundfile”

由于java.io.FileNotFound异常，此代码在IDE中有效，但在可运行的jar中无效。罐子的文件路径是：

jarfile.jar:
            package:
                       AudioFile.class
                       SoundEffectManager.class

            META-INF:
                      MANIFEST.MF
            sounds:
               soundfile.wav

感谢您的帮助。

Answer 1

您必须将声音文件放在资源文件夹中。然后，您可以通过类加载器获取路径。这应该可以在您的ide和jar文件中使用。

this.getClass().getClassLoader().getResource("soundfile").getPath()