Question

您好我试图制作一个java鼓组件，但是当我点击按钮时我的代码没有播放声音，我不知道为什么。我有文件中的声音文件与代码，所以我知道这不是问题。这是我的代码......

import java.applet.AudioClip;
import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JApplet;
import javax.swing.JButton;

public class FinalProjectst extends JApplet implements ActionListener {
    private JButton snareButton;
    private JButton hiHatButton;
    private JButton bassButton;
    private JButton cymbalsButton;
    private AudioClip snare;
    private AudioClip hiHat;
    private AudioClip bass;
    private AudioClip cymbals;

    public void init() {
        setLayout(new FlowLayout());
        sampleButtons();
        snare = getAudioClip(getCodeBase(), "Snare.wav");
        hiHat = getAudioClip(getCodeBase(), "HiHat.wav");
        bass = getAudioClip(getCodeBase(), "Kick.wav");
        cymbals = getAudioClip(getCodeBase(), "Crash.wav");
    }

    private void sampleButtons() {
        snareButton = new JButton("Snare");
        hiHatButton = new JButton("Hi Hat");
        bassButton = new JButton("Kick");
        cymbalsButton = new JButton("Cymbals");

        snareButton.addActionListener(new ButtonListener());
        hiHatButton.addActionListener(new ButtonListener());
        bassButton.addActionListener(new ButtonListener());
        cymbalsButton.addActionListener(new ButtonListener());

        add(snareButton);
        add(hiHatButton);
        add(bassButton);
        add(cymbalsButton);
    }

    public void actionPerformed(ActionEvent e) {
        if (e.getSource() == snareButton)
            snare.play();
        if (e.getSource() == hiHatButton)
            hiHat.play();
        if (e.getSource() == bassButton)
            bass.play();
        if (e.getSource() == cymbalsButton)
            cymbals.play();
    }
}

Answer 1

本代码有很多不好的东西，但总之我从getCodeBase()返回“file：/ tmp /”。所以你指的是* .wav文件为空。

使用此代码，第一个按钮将在网络上播放一段有趣的WAV声音。

import java.awt.*;
import java.applet.*;
import java.awt.event.*;
import javax.swing.*;
import java.net.MalformedURLException;
import java.net.URL;


public class FinalProjectst extends JApplet implements ActionListener
{

    private JButton snareButton;
    private JButton hiHatButton;
    private JButton bassButton;
    private JButton cymbalsButton;
    private AudioClip snare;
    private AudioClip hiHat;
    private AudioClip bass;
    private AudioClip cymbals;

    public void init()
    {
        setLayout (new FlowLayout());

        sampleButtons();

        try {
            snare = getAudioClip(new URL("http://download.wavetlan.com/SVV/Media/HTTP/WAV/Media-Convert/Media-Convert_test1_Alaw_Mono_VBR_8SS_16000Hz.wav") ); //getCodeBase(), "Snare.wav");
        } catch (MalformedURLException e) {
            e.printStackTrace();
        }
        hiHat = getAudioClip(getCodeBase(), "HiHat.wav");
        bass = getAudioClip(getCodeBase(), "Kick.wav");
        cymbals = getAudioClip(getCodeBase(), "Crash.wav");

    }

    private void sampleButtons()
    {
        snareButton = new JButton("Snare");
        hiHatButton = new JButton("Hi Hat");
        bassButton = new JButton("Kick");
        cymbalsButton = new JButton("Cymbals");

        snareButton.addActionListener(this); //new ButtonListener()
        hiHatButton.addActionListener(this);
        bassButton.addActionListener(this);
        cymbalsButton.addActionListener(this);

        add(snareButton);
        add(hiHatButton);
        add(bassButton);
        add(cymbalsButton);
    }

    public void actionPerformed(ActionEvent e)
    {
        if (e.getSource() == snareButton) {
            snare.play();
            System.out.println(getCodeBase());
        }
        if (e.getSource() == hiHatButton)
            hiHat.play();
        if (e.getSource() == bassButton)
            bass.play();
        if (e.getSource() == cymbalsButton)
            cymbals.play();



    }
}

这个工作的唯一原因是因为我将缺少的ButtonListener（）更改为“this”（如果你有类，则不需要）。现在，您有了第一个按钮的现有URL的工作路径。它播放声音很好。

我建议您通过getCodeBase()或其他方法寻找获得所需网址的方法。

Java鼓组项目

1 个答案: