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").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;
    }




}