怎样对图片base64解码?

[youngmean]

BASE64Decoder decoder = new BASE64Decoder();
File f = new File("what.gif");
FileOutputStream fos = new FileOutputStream(f);
byte[] buf = decoder.decodeBuffer(strBase64);
fos.write(buf);
fos.close();

不行呀!!怎么做?????

[youngmean]

what.gif打不开

[GJA106]

如果what.gif是在当前jvm默认路径下File f = new File("what.gif");就起作用，否则使用绝对路径来完成文件定位。如：File f = new File("d:\\images\\what.gif");

[youngmean]

这样好像有问题ya!:
public static String base64Decode(String base64Src){
String r = "";
try{
BASE64Decoder decoder = new BASE64Decoder();
byte[] buf = decoder.decodeBuffer(base64Src);
r = new String(buf);
}catch(Exception e){
e.printStackTrace();
}
return r;
}

[GJA106]

编码代码：
FileInputStream fileForInput = new FileInputStream("c:\\test.gif");
String content = new String();
byte[] bytes = new byte[fileForInput.available()];
fileForInput.read(bytes);
content = new sun.misc.BASE64Encoder().encode(bytes); //具体的编码方法
fileForInput.close();

解码代码：

str = "";//编码内容
byte[] result =new sun.misc.BASE64Decoder().decodeBuffer(str.trim());
RandomAccessFile inOut = new RandomAccessFile("c:\\my.jpg","rw");
inOut.write(result);
inOut.close();

[yyil80]

学习了。