jar 以上传到资源中

        <dependency>
            <groupId>it.sauronsoftware</groupId>
            <artifactId>jave</artifactId>
            <version>1.0.2</version>
        </dependency>

 获取音频时长

/**
     * 音频文件获取文件时长（秒）
     * @param source
     * @return
     */
    public static Long getDuration(File source) {
        Encoder encoder = new Encoder();
        long ls = 0;
        MultimediaInfo m;
        try {
            m = encoder.getInfo(source);
            ls = m.getDuration()/1000;
        } catch (Exception e) {
            System.out.println("获取音频时长有误：" + e.getMessage());
        }
        return ls;
    }