音乐播放器-使用jaudiotagger获得音频元信息

最近写音乐播放器，但是一直不知道怎么获取音频中的tag信息，最后通过第三方库jaudiotagger解决了问题。

使用TagExplorer查看一首MP3中的tag：



jaudiotagger官网

Tag匹配信息

可以发现大部分歌曲包含并且我们比较需要的信息只有歌名，专辑，歌手，时长，歌曲中内嵌的图片而已，下面给出读取的代码(测试支持flac，MP3，其他自测)

package com.example.util;

import java.awt.Image;
import java.awt.Toolkit;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

import javax.swing.ImageIcon;

import org.jaudiotagger.audio.AudioFile;
import org.jaudiotagger.audio.exceptions.CannotReadException;
import org.jaudiotagger.audio.exceptions.InvalidAudioFrameException;
import org.jaudiotagger.audio.exceptions.ReadOnlyFileException;
import org.jaudiotagger.audio.flac.FlacFileReader;
import org.jaudiotagger.audio.mp3.MP3File;
import org.jaudiotagger.tag.FieldKey;
import org.jaudiotagger.tag.KeyNotFoundException;
import org.jaudiotagger.tag.TagException;
import org.jaudiotagger.tag.id3.AbstractID3v2Frame;
import org.jaudiotagger.tag.id3.AbstractID3v2Tag;
import org.jaudiotagger.tag.id3.framebody.FrameBodyAPIC;
import org.jaudiotagger.tag.images.Artwork;

import com.example.entity.Tag;

/**
* @date 2017年3月16日 下午11:47:16
* @version 1.0
* 目前测试支持MP3、flac，其他格式有待测试
*/
public class TagInfoUtil {

public static Tag Mp3InfoRead(String path){
MP3File file;
try {
file = new MP3File(path);
String songName=file.getID3v2Tag().frameMap.get("TIT2").
c092
toString();
String artist=file.getID3v2Tag().frameMap.get("TPE1").toString();
String album=file.getID3v2Tag().frameMap.get("TALB").toString();
String length=file.getMP3AudioHeader().getTrackLengthAsString();
songName=songName.substring(6, songName.length()-3);
artist=artist.substring(6, artist.length()-3);
album=album.substring(6, album.length()-3);

Tag tag = new Tag();
tag.setSongName(songName);
tag.setAlbum(album);
tag.setArtist(artist);
tag.setLength(length);
return tag;
} catch (IOException | TagException | ReadOnlyFileException | CannotReadException
| InvalidAudioFrameException e) {
e.printStackTrace();
throw new RuntimeException("获取Mp3 tag信息出错！");

}

//          System.out.println("歌名"+songName);
//          System.out.println("歌手"+singer);
//          System.out.println("专辑:"+author);
}

public static Image getMp3Picture(String mp3path){
Image img;
try {
String url = mp3path;
File sourceFile = new File(url);
MP3File mp3file = new MP3File(sourceFile);

AbstractID3v2Tag tag = mp3file.getID3v2Tag();
AbstractID3v2Frame frame = (AbstractID3v2Frame) tag.getFrame("APIC");
FrameBodyAPIC body = (FrameBodyAPIC) frame.getBody();
byte[] imageData = body.getImageData();
img = Toolkit.getDefaultToolkit().createImage(imageData, 0,imageData.length);
ImageIcon icon = new ImageIcon(img);
String storePath=mp3path;
storePath = storePath.substring(0, storePath.length()-3);
storePath+="jpg";
FileOutputStream fos = new FileOutputStream(storePath);
fos.write(imageData);
fos.close();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
throw new RuntimeException("读取Mp3图片出错");
}
return img;
}

public static Tag FlacInfoRead(String path){
try {
FlacFileReader fileReader=new FlacFileReader();
AudioFile read = fileReader.read(new File(path));
org.jaudiotagger.tag.Tag tag = read.getTag();
String songName = tag.getFirst(FieldKey.TITLE);
String artist = tag.getFirst(FieldKey.ARTIST);
String album=tag.getFirst(FieldKey.ALBUM);
int trackLength = read.getAudioHeader().getTrackLength();
int min=trackLength/60;
int second=trackLength%60;
String length=min+":"+second;
System.out.println("长度:"+length);
Tag tag2 = new Tag();
tag2.setSongName(songName);
tag2.setArtist(artist);
tag2.setAlbum(album);
return tag2;
//          System.out.println(songName);
//          System.out.println(artist);
//          System.out.println(album);
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
throw new RuntimeException("读取Flac信息时出错！");
}
}

public static Image getFlacPicture(String flacpath){
try {
FlacFileReader fileReader=new FlacFileReader();
AudioFile read = fileReader.read(new File(flacpath));
org.jaudiotagger.tag.Tag tag = read.getTag();
Artwork firstArtwork = tag.getFirstArtwork();
byte[] imageData = firstArtwork.getBinaryData();
Image image=Toolkit.getDefaultToolkit().createImage(imageData, 0,imageData.length);
ImageIcon icon = new ImageIcon(image);
String storePath=flacpath;
storePath = storePath.substring(0, storePath.length()-4);
storePath+="jpg";
System.out.println(storePath);
FileOutputStream fos = new FileOutputStream(storePath);
fos.write(imageData);
fos.close();
return image;
} catch (Exception e) {
e.printStackTrace();
throw new RuntimeException("读取Flac图片时出错！");
}
}

}

Tag类：

package com.example.entity;

/**
* @date 2017年3月15日 下午2:26:49
* @version 1.0
* @Description:   Tag信息实体类
*/
public class Tag {
private String SongName;
private String Artist;
private String Album;
private String length;
public String getSongName() {
return SongName;
}

public String getArtist() {
return Artist;
}

public void setArtist(String artist) {
Artist = artist;
}

public void setSongName(String songName) {
SongName = songName;
}
public String getAlbum() {
return Album;
}
public void setAlbum(String album) {
Album = album;
}

public String getLength() {
return length;
}

public void setLength(String length) {
this.length = length;
}

}