Re: [SQL] JDBC encoding problem

I have met the same problem when I deal with chinese.
I guess tomcat and jdbc produced this bug.
But you may solute the charset display problem.
You change the database's charset is useless when you connected DB with JDBC. You should convert Input Text with UTF-8 before saved in database. When you fetch data from DATABASE ,you should convert output data with some charset (F.E:GBK) before you display the data in page.

There is some java code I used.Hope they will help you.
//Output:
OutputStream fileOut = new FileOutputStream(outputFileName);

fileOut.write(data.getBytes("GBK")); //GBK、GB2312、BIG5、UTF8

//Input:
InputStream fileIn = new FileInputStream(inputFileName);

int i = fileIn.read(buff);

String data = new String(buff,"UTF8");

Best regards.
leon

----- Original Message -----
From: "Kurt Overberg" <kurt(at)hotdogrecords(dot)com>
To: <pgsql-sql(at)postgresql(dot)org>; <pgsql-jdbc(at)postgresql(dot)org>
Sent: Wednesday, August 06, 2003 1:11 AM
Subject: [SQL] JDBC encoding problem

>
> I'm having a rather strange problem that I'm hoping someone can help me
> with. I'm using Struts 1.0/jsp on Debian linux under Tomcat 4.1.x and
> the blackdown JVM . I'm attempting to convert my current SQL_ASCII
> database to UNICODE. I'm new to this, so am most likely making a few
> mistakes. Here's what I've done so far:
>
> o Converted database encoding to be UNICODE. I'm pretty sure this part
> worked okay. (did a pg_dump, then iconv -f 8859_1 -t UTF-8, then
> created new db with encoding UNICODE and reloaded- no errors upon reload)
>
> sparky:~$ psql -l
> List of databases
> Name | Owner | Encoding
> -----------+----------+-----------
> unitest | kurt | UNICODE
> template1 | postgres | SQL_ASCII
> (2 rows)
>
>
> o set client_encoding to 'UTF8';
>
> o In my JSP files, I set the following at the top of each:
>
> <%@ page lanuage="java" pageEncoding="UTF-8" %>
>
>
> Now, to test this, I go to a japanese page, copy some text, then paste
> it into a form, that gets submitted to the server and saved into the DB.
> Then I try to display what I got back from the database. It comes out
> garbled. HOWEVER- if I leave the 'pageEncoding' out of my display .jsp
> file it still comes out garbled, UNTIL I set UTF-8 manually in my
> browsers Character Encoding settings (both mozilla and IE). Then the
> japanese characters render fine (just like I entered them).
>
> Very strange. What's confusing is that when I set the pageEncoding to
> 'UTF-8', the characters don't render properly, and as far as I can tell,
> thats the same as manually setting the browser manually. I must be
> doing something wrong because I get the same results in IE and mozilla
> (recent build).
>
> What may be the problem- I don't do anything differently when getting
> the data out of the database, just standard
> resultset.getString("column"); Do I need to change that call, to handle
> the potentially UTF-8 encoded strings? I can't find anything on that at
> all with google/usenet.
>
> Any and all help, suggestions or pointers would be greatly appreciated.
>
> Thanks!
>
> /kurt
>
>
>
> ---------------------------(end of broadcast)---------------------------
> TIP 4: Don't 'kill -9' the postmaster
>