这里需要用到一个jar包:jave-1.0.1.jar,下载地址的话自己百度吧.

废话不多说直接贴代码：

    import it.sauronsoftware.jave.AudioAttributes;        import it.sauronsoftware.jave.Encoder;        import it.sauronsoftware.jave.EncodingAttributes;                import java.io.File;                                        public class Test {                        /**            * 执行转化过程            *             * @param source            *            源文件            * @param desFileName            *            目标文件名            * @return 转化后的文件            */            public static File execute(File source, String desFileName)                    throws Exception {                File target = new File(desFileName);                AudioAttributes audio = new AudioAttributes();                audio.setCodec("libmp3lame");                audio.setBitRate(new Integer(36000)); //音频比率 MP3默认是1280000                audio.setChannels(new Integer(2));                audio.setSamplingRate(new Integer(44100));                EncodingAttributes attrs = new EncodingAttributes();                attrs.setFormat("mp3");                attrs.setAudioAttributes(audio);                Encoder encoder = new Encoder();                encoder.encode(source, target, attrs);                return target;            }                       public static void main(String[] args) throws Exception {                   File file = new File("c://1111.wav");                   execute(file,  "c://111.mp3");           }        }