错误：无法从代码中获取输入文件的音频输入流？代码有什么问题？

Question

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.io.*;
import javax.sound.sampled.*;

public class AudioTest extends JFrame implements ActionListener
{
AudioFormat audioFormat;
AudioInputStream audioInputStream;
SourceDataLine sourceDataLine;
boolean stopPlayback = false;
private final JButton stopBtn = new JButton("Stop");
private final JButton playBtn = new JButton("Play");
private final JTextField textField = new JTextField("junk.au");

public static void main(String[] args)
{
    AudioTest gui = new AudioTest();
    gui.setVisible(true);
}

public AudioTest()
{
    stopBtn.setEnabled(false);
    playBtn.setEnabled(true);

    playBtn.addActionListener(this);

    stopBtn.addActionListener(this);

    getContentPane().add(playBtn, "West");
    getContentPane().add(stopBtn, "East");
    getContentPane().add(textField, "North");

    setTitle("Audio Test");
    addWindowListener(new WindowDestroyer());
    setDefaultCloseOperation(EXIT_ON_CLOSE);
    setSize(250, 70);
}

private void playAudio()
{
    try
    {
        File soundFile = new File(textField.getText());
        audioInputStream = AudioSystem.getAudioInputStream(soundFile);
        audioFormat = audioInputStream.getFormat();
        System.out.println(audioFormat);
        DataLine.Info dataLineInfo = new DataLine.Info(SourceDataLine.class,       audioFormat);
        sourceDataLine = (SourceDataLine)AudioSystem.getLine(dataLineInfo);
        new PlayThread().start();
    }

    catch(Exception e)
    {
        e.printStackTrace();
        System.exit(0);
    }
}

private class PlayThread extends Thread
{
    byte tempBuffer[]  = new byte[10000];

    public void run()
    {
        try
        {
            sourceDataLine.open(audioFormat);
            sourceDataLine.start();

            int cnt;

            while((cnt = audioInputStream.read(
                    tempBuffer, 0, tempBuffer.length)) != 1
                        && stopPlayback == false) 
            {
                if(cnt >0)
                {
                    sourceDataLine.write(tempBuffer, 0, cnt);
                }
            }

            sourceDataLine.drain();
            sourceDataLine.close();

            stopBtn.setEnabled(false);
            playBtn.setEnabled(true);
            stopPlayback = false;
        }

        catch (Exception e)
        {
            e.printStackTrace();
            System.exit(0);
                }
            }
        }


public void actionPerformed(ActionEvent e)
{
    if(e.getActionCommand().equals("Play"))
    {
        stopBtn.setEnabled(true);
        playBtn.setEnabled(false);
        playAudio();
    }
    else if(e.getActionCommand().equals("Stop"))
    {
        stopPlayback = true;
    }
}
}

我一直在试图弄清楚为什么音频输入流有问题。文件名是正确的，它将它带入文件，但具有getAudioInputStream的行有问题。这是我计划工作的项目的测试代码，我熟悉所有内容，但我一直在收到错误。

Answer 1

您需要提供完整的路径和文件名，例如......

工作只是找...

您可能需要考虑尝试使用其他音频格式（例如.wav）