如何在Java的应用程序中播放音频文件

2025-04-03 01:55:56
推荐回答(1个)
回答1:

在 applet 中播放声音文件非常简单,一般需要以下步骤:    创建一个 AudioClip 对象
装入 .au 声音文件到 AudioClip 对象
一次播放或者不停循环播放声音
停止播放
下面是相应的代码:    import java.applet.*;    AudioClip ac = getAudioClip(getCodeBase(), soundFile);
ac.play(); //play once
ac.stop(); //stop playing
解决这个问题的窍门是利用由 Sun 及 其JDK 提供的某些 undocumented 的特征。先看看 Sun JDK 中的文件 classes.zip (使用任何解压工具即可),发现其中不仅包含标准的 Java 包如 java.applet 而且还存在包 sun.audio. (在 sun/audio 的目录下.)
包 sun.audio 中包含了用于播放声音文件所需的所有东西!下面是示例代码:    import sun.audio.*; //import the sun.audio package
import java.io.*;    //** add this into your application code as appropriate    // Open an input stream to the audio file.
InputStream in = new FileInputStream(Filename);    // Create an AudioStream object from the input stream.
AudioStream as = new AudioStream(in);    // Use the static class member "player" from class AudioPlayer to play
// clip.
AudioPlayer.player.start(as);    // Similarly, to stop the audio.
AudioPlayer.player.stop(as);      如果要用一个 URL 做为声音流的源(source),则用下面的代码所示替换输入流来创建声音流:    AudioStream as = new AudioStream (url.openStream());    如果需要持续播放声音文件,则要稍稍复杂一点:    // Create audio stream as discussed previously.
// Create AudioData source.
AudioData data = as.getData();    // Create ContinuousAudioDataStream.
ContinuousAudioDataStream cas = new ContinuousAudioDataStream (data);    // Play audio.

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