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From Adam Hardy <>
Subject Re: character encoding, JAAS, servlet filter vs. valve
Date Tue, 23 Sep 2003 10:11:48 GMT
Hi Joerg,
since you are using struts, why don't you ditch the 
SetCharacterEncodingFilter and set the character-encoding as a property 
of the struts controller? This means you also don't need anything in 
your JSPs.

I assume you are using form-based container-managed authentication as 
the interface to the JAAS realm. If so, I do not understand how you have 
a character encoding problem with the login form, since you can just set 
the character encoding in the JSP as a scriptlet or in HTML as a meta tag.

I stand a few days away from setting up the same configuration myself, 
albeit without JBoss, so I would be interested in your reply.


On 09/23/2003 11:01 AM Joerg Heinicke wrote:
> Hello,
> we have a Struts web application, that should use UTF-8 as character 
> encoding. I set the content type for the HTML pages (JSP) as well as the 
> character encoding on the request via the SetCharacterEncodingFilter 
> delivered with Tomcat in the examples webapp. It works in the whole 
> application.
> But: It's Tomcat 4.1.18 integrated in JBoss 3.0.6 and we do 
> authentication using JAAS and I found no possibility to set the request 
> encoding of the JAAS request (to j_security_check). This resulted in 
> "wrong username or password" for "müller", which could be fixed in the 
> login module by recoding the string. But we also have a "logged in as" 
> on every page and there was not written "müller", but the infamous UTF-8 
> vs. ISO-8859 "mA¼ller", because it was wrongly set on the request object 
> or at least wrongly read from there.
> I have fixed it by writing a SetCharacterEncodingValve and now also the 
> JAAS request is handled as UTF-8, but the application depends on Tomcat 
> now. Does anybody know how to configure the filter mapping to match also 
> the JAAS request? As far as I know the JAAS request is "catched" by the 
> servlet container and does not arrive at the web app. This means the 
> filter mapping in the web.xml can't be read/used.
> I would like to replace the Valve with the Filter to avoid servlet 
> container dependency. I appreciate any help.
> Regards,
> Joerg

struts 1.1 + tomcat 4.1.27 + java 1.4.2
Linux 2.4.20 RH9

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