thanks for you reply.
and as what you said,,the taglib-uri is just exactly match the item of uri in
jsp file
<%@ taglib uri="taglib-uri in web.xml" prefic="test"%>.
it's not relative to the location of the web.xml.
BTW,I have read your book of "Professional JSP Tag Libraries", only the trial readings, but it's great! --you know, I'm in Beijing, no paper book of "Professional JSP Tag Libraries" here, but have paper book "Professional
Java Servlets 2.3" and "Professional JSP 2nd Edition",these two book translated in Chinese. They are all great,thank you! It's made me clearly about servlet, jsp,and some point of taglib,and It's help me passed the SCWCD(93%),thank you.