用java又写了一遍mp3标签读取的类

其实面向对象java和c#很大程度上都差不多

稍微改了下

主要是一些系统类的名字不一样

java还是有点意思的，要学的还有很多

不多说，贴代码

ID3v1.java


package tigerlihao;
import java.io.File;
import java.io.IOException;
import java.io.RandomAccessFile;

public class ID3v1 {
private String _header;
public String title;
public String artist;
public String album;
public String year;
public String comment;
public byte trackNumberFlag;
public byte trackNumber;
public byte genre;
private File _mp3File;
private RandomAccessFile rf;

public ID3v1(String mp3File) {
_mp3File = new File(mp3File);
}

public Boolean getTagInfo() {
Boolean hasTag = false;
byte[] b = new byte[128];
try {
rf = new RandomAccessFile(_mp3File, "r");
rf.seek(rf.length() - 128);
rf.read(b);
_header = new String(b, 0, 3);
if (_header.compareTo("TAG") == 0) {
title = new String(b, 3, 30);
artist = new String(b, 33, 30);
album = new String(b, 63, 30);
year = new String(b, 93, 4);
trackNumberFlag = b[125];
if (trackNumberFlag == 0) {
comment = new String(b, 97, 28);
trackNumber = b[126];
} else {
comment = new String(b, 97, 30);
trackNumber = 0;
}
genre = b[127];
hasTag = true;
}
rf.close();
} catch (IOException e) {
e.printStackTrace();
}
return hasTag;
}

public static void main(String[] args) {
ID3v1 tags = new ID3v1("D:\\My Documents\\My Music\\10 Mother 久石让 菊次郎的夏天.mp3");
boolean hasTag = tags.getTagInfo();
if (hasTag) {
System.out.println("Title:" + tags.title);
System.out.println("Artist:" + tags.artist);
System.out.println("Album:" + tags.album);
System.out.println("Year:" + tags.year);
System.out.println("Comment:" + tags.comment);
System.out.println("No." + tags.trackNumber);
} else {
System.out.println("Sorry!");
}
}
}