java 如何获取音频文件的信息？

比如 时长，压缩率，比特率，什么什么的
比如这种
name：0001.MP3

Metadata:
starttime : 0
totalduration : 2147
totaldatarate : 350
bytelength : 93905190
canseekontime : true
sourcedata : B4A7DD586MM1330792730533529
purl :
pmsg :
Duration: 00:35:46.57, start: 0.000000, bitrate: 349 kb/s
Stream #0:0: Video: flv1, yuv420p, 320x240, 284 kb/s, 30 fps, 30 tbr, 1k tbn, 1k tbc
Stream #0:1: Audio: mp3, 22050 Hz, stereo, s16p, 65 kb/s
Stream #0:2: Data: none
Unsupported codec with id 0 for input stream 2

怎么又是你啊。我记得昨天给你回答了呀。

java中直接使用audioinputstream类来操作音乐文件，获取时长，实例如下： import java.io.file; import java.io.ioexception; import javax.sound.sampled.audioinputstream; import javax.sound.sampled.audiosystem; import javax.sound.sampled.clip; import javax.sound.sampled.lineunavailableexception; import javax.sound.sampled.unsupportedaudiofileexception; public class audiolength { public static void main(string[] args) throws lineunavailableexception, unsupportedaudiofileexception, ioexception { file file = new file("d:/test.wav"); clip clip = audiosystem.getclip(); audioinputstream ais = audiosystem.getaudioinputstream(file); clip.open(ais); system.out.println( clip.getmicrosecondlength() / 1000000d + " s" );//获取音频文件时长 } }