The JSTL tag library is divided into 5 categories, namely:
Core Tag Library: C (prefix) http://java.sun.com/jsp/jstl/core (URL)
118N Tag library: FMT http://java.sun.com/jsp/jstl/fmt
SQL Tag Library: SQL Http://java.sun.com/jsp/jstl/sql
XML tag library: x http://java.sun.com/jsp/jstl/xml
Function Tag Library: FN Http://java.sun.com/jsp/jstl/functions
Jstl.jar the. class file that contains the interfaces and classes defined in the JSTL specification
Standard.jar contains the. class file that is used by the Apache open Source software organization to implement JSTL, and in its Meta-inf directory, contains the conventions for all tag libraries (pictured, not pictured here)
1. Install and configure JSTL: Copy the Jstl Jst1.jar and Standard.jar to the Web-inf/lib directory under your own Web application to reference the
2. References need taglib tag: <%@ taglib uri= "Http://java.sun.com/jsp/jst1/core" prefix= "C"%> (prefix is prefix)
JSTL Standard Tag Library Reference