About encoding convertion from ISO8859-1 to GBK

Question

Hi,
i tried to convert a string of 000"testline"111 from iso8859-1 to gbk.
here is the code:
// db stores data in iso8859 encoding
String contractname = rs.getString("contractname");
// change it to gbk
String contractnamegbk = new String(contractname.getBytes("ISO8859-1"),"GBK");
my test page uses GBK charset
and when i display it on the page using <%=contractnamegbk %>
it only shows me 000 missing the "testline"111
anyone knows what the problem is?
thanks very much

Answer 1

man i still have problem converting from 8859 to gbk
i think string is just string, it represents that
single piece of data wherever it is stored, on
windows,unix or other systemIn Java a String contains UNICODE characters. I say again, UNICODE characters.
>
the difference is that system might use different
encoding to read what this data is,so they
getbytes(in some encoding) hoping to know what it is.No! getBytes() converts the UNICODE characters contined in the String to an array of bytes using the encoding specified. If you don't specify an encoding it take the default encoding which is platform and Locale delendent.
>
i use this
String gbkstring = new
String(paraStr.getBytes("ISO8859-1"),"GBK");
i think data transferd from a iso8859 database to my
testpage, and i should use the same way to decode it
to what it is and i then use GBK to store or display
it.NOI NO NO! As I said in my first post, this first creates an array of bytes which are the ISO-8859-1representation of the characters in the String and then pretends that these are GBK encoded and tries to create a String from them. It does not convert ISO-8859-1 to GBK. I say again, it does not convert ISO-8859-1 to GBK.
>
and it works.but when i tried to convert 000"test
word"111 it still displays 000 missing the rest
I don't understand what you mean here.
The bottom line is that when you get the String from the database, whatever the coding was in the database, once you have it as a Java String the content is UNICODE characters. If the database stored it as ISO-8859-1 then hopefully the JDBC driver performed the correct conversion to turn it into UNICODE.
Java Strings contain UNICODE characters. Java Strings do not contain ISO-8859-1 characters. Java Strings do not contain GBK characters. Java Strings contain UNICODE characters.