Java中读文件操作

public class audioInputStream {
    public static void playWAV(){
        try {
            AudioInputStream stream = AudioSystem.getAudioInputStream(new File("SourceFile/1.wav"));
            byte[] samples = getSamples(stream);   //将音频转化为字节数组
            InputStream in = new ByteArrayInputStream(samples);
            play(in,stream.getFormat());    //播放音频文件
        } catch (UnsupportedAudioFileException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        
    }
    private static byte[] getSamples(AudioInputStream stream){
        int length = (int) (stream.getFrameLength()*stream.getFormat().getFrameSize());
        byte[] samples = new byte[length];
        DataInputStream in = new DataInputStream(stream);
        try {
            in.readFully(samples);
            System.out.println(length);
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        return samples;
    }
    private static void play(InputStream stream, AudioFormat format){
        int bufferSize = format.getFrameSize()* Math.round(format.getSampleRate()/10);
        byte[] buffer = new byte[bufferSize];
        DataLine.Info info = new DataLine.Info(SourceDataLine.class, format);
        try {
            SourceDataLine line = (SourceDataLine) AudioSystem.getLine(info);
            line.open(format, bufferSize);
            line.start();
            int numBytesRead = 0;
            while(numBytesRead != -1){
                numBytesRead = stream.read(buffer, 0, buffer.length);
                if(numBytesRead != -1){
                    line.write(buffer, 0, numBytesRead);
                    //System.out.println(numBytesRead);
                }
            }
            line.drain();
            line.close();
        } catch (LineUnavailableException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }

try {
    FileInputStream fis = new FileInputStream("SourceFile/employee");
    try {
        byte[] bytes = new byte[fis.available()];
        fis.read(bytes);
        fis.close();
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
} catch (FileNotFoundException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
}