Using DefaultURLConstructor as default url constructor, JSPWiki would mess if the wiki page name is in chinese.

I checked out the implementation of DefaultURLConstructor.parsePage() method:

    public String parsePage( String context,
                             HttpServletRequest request,
                             String encoding )
        throws UnsupportedEncodingException
    {
        request.setCharacterEncoding( encoding );
        String pagereq = request.getParameter( "page" );

        if( context.equals(WikiContext.ATTACH) )
        {
            pagereq = parsePageFromURL( request, encoding );
        }

        return pagereq;
    }

request.setCharacterEncoding( encoding ); seems invalid, the value of pagereq is still encoded in ISO8859-1. When writing out to broswer, we got a messing result. (Of course, my jspwiki.encoding = UTF-8)

My patch is following:

        String pagereq = request.getParameter( "page" );

        if(pagereq != null)
            pagereq = TextUtil.urlDecode( pagereq, encoding );

        if( context.equals(WikiContext.ATTACH) )
        {
            pagereq = parsePageFromURL( request, encoding );
        }

        return pagereq;

BTW, www.jspwiki.org is ok because it uses ShortViewURLConstructor. The encoding problem is resolved by WikiServlet.

Fixed in 2.4.x. Please also check the TomcatAndUTF8 page.