/**
* 根据byte数组，生成文件
* @param bfile 文件数组
* @param filePath 文件存放路径
* @param fileName 文件名称
*/
public static void byte2File
(byte
[] byte,String filePath,String fileName
){
BufferedOutputStream bos
=null
;
FileOutputStream fos
=null
;
File file
=null
;
try
{
File dir
=new File
(filePath
);
if
(!dir.exists
() && !dir.isDirectory
()){//判断文件目录是否存在
dir.mkdirs
();
}
file
=new File
(filePath+fileName
);
fos
=new FileOutputStream
(file
);
bos
=new BufferedOutputStream
(fos
);
bos.write
(byte
);
}
catch
(Exception e
){
System.out.println
(e.getMessage
());
e.printStackTrace
();
}
finally
{
try
{
if
(bos
!= null
){
bos.close
();
}
if
(fos
!= null
){
fos.close
();
}
}
catch
(Exception e
){
System.out.println
(e.getMessage
());
e.printStackTrace
();
}
}
}
/**
* 获得指定文件的byte数组
* @param filePath 文件绝对路径
* @return
*/
public static byte
[] file2Byte
(String filePath
){
ByteArrayOutputStream bos
=null
;
BufferedInputStream in
=null
;
try
{
File file
=new File
(filePath
);
if
(!file.exists
()){
throw new FileNotFoundException
("file not exists");
}
bos
=new ByteArrayOutputStream
((int)file.length());
in
=new BufferedInputStream
(new FileInputStream
(file
));
int buf_size
=1024
;
byte
[] buffer
=new byte
[buf_size
];
int len
=0
;
while
(-1
!= (len
=in.read
(buffer,0,buf_size
))){
bos.write
(buffer,0,len
);
}
return bos.toByteArray
();
}
catch
(Exception e
){
System.out.println
(e.getMessage
());
e.printStackTrace
();
return null
;
}
finally
{
try
{
if
(in
!=null
){
in.close
();
}
if
(bos
!=null
){
bos.close
();
}
}
catch
(Exception e
){
System.out.println
(e.getMessage
());
e.printStackTrace
();
}
}
}
