xfire 断点上传文件

public String upLoadFileOffset(String  fileName, String action, byte[] data, MusicInfor musicInfor) {

String fileNameCreate = null;

long fileSize = 0;

java.io.File file = null;

RandomAccessFile raf = null;

// 判断action  0：返回文件名称  1：返回文件大小

if(action != null && "0".equals(action)) {

String extendName = fileName.substring(fileName.lastIndexOf("."));

//System.out.println("扩展名" + extendName);

fileNameCreate = new Date().getTime() + extendName;

musicInfor.setFileName(fileNameCreate);

mis.add(musicInfor);   //写入数据库

//System.out.println(fileNameCreate);

return fileNameCreate;

} else if (action != null && "1".equals(action)) {

String folder = ProjectUtil.getFileFolderPath();

file = new java.io.File(folder + fileName);

try {

raf = new RandomAccessFile(file,"rw");

raf.seek(file.length());

raf.write(data);

fileSize = file.length();

} catch (FileNotFoundException e) {

e.printStackTrace();

} catch (IOException e) {

e.printStackTrace();

}finally {

try {

raf.close();

} catch (IOException e) {

e.printStackTrace();

}

}

} 

return fileSize + "";

}