Today I tried two way to generate a pdf file from a our project's chinese xml file.
First FOP way, it is very easy to add chinese fonts to fop to get it work, and generate a very good one from a simple xml file. But unfortunately its ability handling large document is quite bad. I got a fatal OutofMemory error and failed to generate one. Java always does not get along quite well with Debian. Sometimes I need to do some tweak to make JAI work. Maybe FOP is not mature enough to use in practice.
For Latex way, it really has a longer learning curves. After some unsuccessful attempts, I had gotten pdflatex working with sample GB and UTF-8 files. On the other hand, when xsltproc create a .tex file, its /usepackage and /begin fields are always useless for Chinese. All I have to do is to make sure they use {CJK} package and {UTF8} along with a right font. Although I see it finally works, I just wander if there is a brilliant stylesheet, with which can get a usable .tex file for Chinese. Then I can simply use pdflatex to get a pdf out of latex.