page Encoding

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gk - 20 Jan 2006 04:47 GMT

code:

i see a JSP which has

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>

when do i use "pageEncoding="UTF-8" ?

.....and when do i skip it ?

is it a optional parameter ?

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Raymond DeCampo - 24 Jan 2006 19:02 GMT

> code:
>
[quoted text clipped - 7 lines]
>
> is it a optional parameter ?

It is optional. Use it to specify what encoding is used when converting
characters to bytes when sending the response to the browser. In most
cases you do not care about this, but the times when you do, you really
care. :-)

Seriously, if you are sticking with ASCII characters you should be fine.
Issues arise when you start using international (from the U.S.
viewpoint) characters.

HTH,
Ray

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Oliver Wong - 24 Jan 2006 19:51 GMT

>> code:
>>
[quoted text clipped - 16 lines]
> Issues arise when you start using international (from the U.S. viewpoint)
> characters.

If you know you are using the US ASCII encoding, you should probably
specify so (pageEncoding="us-ascii"). There exists encodings for which the
glyph a certain character code maps to is different from the glyph in
US-ASCII.

If you have no idea what encoding you're using, I recommend omitting the
attribute altogether, so as to allow the user's browser try to automatically
guess the encoding (or let the user manually set the encoding).

- Oliver

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