Is there any way to convert Java String
to a byte[]
(not the boxed Byte[]
)?
In trying this:
System.out.println(response.split("\r\n\r\n")[1]);
System.out.println("******");
System.out.println(response.split("\r\n\r\n")[1].getBytes().toString());
and I'm getting separate outputs. Unable to display 1st output as it is a gzip string.
<A Gzip String>
******
[B@38ee9f13
The second is an address. Is there anything I'm doing wrong? I need the result in a byte[]
to feed it to gzip decompressor, which is as follows.
String decompressGZIP(byte[] gzip) throws IOException {
java.util.zip.Inflater inf = new java.util.zip.Inflater();
java.io.ByteArrayInputStream bytein = new java.io.ByteArrayInputStream(gzip);
java.util.zip.GZIPInputStream gzin = new java.util.zip.GZIPInputStream(bytein);
java.io.ByteArrayOutputStream byteout = new java.io.ByteArrayOutputStream();
int res = 0;
byte buf[] = new byte[1024];
while (res >= 0) {
res = gzin.read(buf, 0, buf.length);
if (res > 0) {
byteout.write(buf, 0, res);
}
}
byte uncompressed[] = byteout.toByteArray();
return (uncompressed.toString());
}
Best Answer
The object your method
decompressGZIP()
needs is abyte[]
.So the basic, technical answer to the question you have asked is:
However the problem you appear to be wrestling with is that this doesn't display very well. Calling
toString()
will just give you the defaultObject.toString()
which is the class name + memory address. In your result[B@38ee9f13
, the[B
meansbyte[]
and38ee9f13
is the memory address, separated by an@
.For display purposes you can use:
But this will just display as a sequence of comma-separated integers, which may or may not be what you want.
To get a readable
String
back from abyte[]
, use:The reason the
Charset
version is favoured, is that allString
objects in Java are stored internally as UTF-16. When converting to abyte[]
you will get a different breakdown of bytes for the given glyphs of thatString
, depending upon the chosen charset.