참조: http://java.sun.com/j2ee/1.4/docs/tutorial/doc/

총 다섯 종류의 표준 태그 라이브러리 제공.

# Core: http://java.sun.com/jsp/jstl/core
# XML: http://java.sun.com/jsp/jstl/xml
# Internationalization: http://java.sun.com/jsp/jstl/fmt
# SQL: http://java.sun.com/jsp/jstl/sql
# Functions: http://java.sun.com/jsp/jstl/functions

Core 태그는 다시 네 가지로 나뉨.

Variable support (remove,set)
Flow control (choose, when, otherwise, forEach, forTokens, if)
URL management  (import, param, redirect, param, url, param)
Miscellaneous (catch, out )

변수 관련 태그

변수 만들기
<c:set var=”변수명” value=”값” scopr=”application|session|request|page” />

변수 지우기
<c:remove var=”변수명” />

흐름 제어 태그

조건문

if문
<c:if test=”${!empty param.Add}”>
  <c:set var=”bid” value=”${param.Add}”/>
  <jsp:useBean id=”bid”  type=”java.lang.String” />
   <sql:query var=”books”
    dataSource=”${applicationScope.bookDS}”>
    select * from PUBLIC.books where id = ?
    <sql:param value=”${bid}” />
  </sql:query>
  <c:forEach var=”bookRow” begin=”0″ items=”${books.rows}”>
    <jsp:useBean id=”bookRow” type=”java.util.Map” />
    <jsp:useBean id=”addedBook”
      class=”database.BookDetails” scope=”page” />
  …
  <% cart.add(bid, addedBook); %>

</c:if>

switch-case와 비스무리한 것
<c:choose>
  <c:when test=”${customer.category == ‘trial’}” >
    …
  </c:when>
  <c:when test=”${customer.category == ‘member’}” >
    …
  </c:when>
    <c:when test=”${customer.category == ‘preferred’}” >
    …
  </c:when>
  <c:otherwise>
    …
  </c:otherwise>
</c:choose> 

반복문
<c:forEach var=”item” items=”${sessionScope.cart.items}”>
  …
  <tr>
    <td align=”right” bgcolor=”#ffffff”>
    ${item.quantity}
  </td>
  …
</c:forEach>

URL 태그, Miscellaneous 태그는 PASS