JSTL 核心标签库 (01) : 概览

核心标签库是最常用的JSTL库.

1. 安装:
   • 标准语法: <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
   • XML语法: <anyxmlelement xmlns:c="http://java.sun.com/jsp/jstl/core"/>
2. 标签概览:

   catch	Catches any Throwable that occurs in its body and optionally exposes it.
   choose	Simple conditional tag that establishes a context for mutually exclusive conditional operations, marked by <when> and <otherwise>
   if	Simple conditional tag, which evalutes its body if the supplied condition is true and optionally exposes a Boolean scripting variable representing the evaluation of this condition
   import	Retrieves an absolute or relative URL and exposes its contents to either the page, a String in 'var', or a Reader in 'varReader'.
   forEach	The basic iteration tag, accepting many different collection types and supporting subsetting and other functionality
   forTokens	Iterates over tokens, separated by the supplied delimeters
   out	Like <%= ... >, but for expressions.
   otherwise	Subtag of <choose> that follows <when> tags and runs only if all of the prior conditions evaluated to 'false'
   param	Adds a parameter to a containing 'import' tag's URL.
   redirect	Redirects to a new URL.
   remove	Removes a scoped variable (from a particular scope, if specified).
   set	Sets the result of an expression evaluation in a 'scope'
   url	Creates a URL with optional query parameters.
   when	Subtag of <choose> that includes its body if its condition evalutes to 'true'

参考:
http://www.cnblogs.com/lihuiyy/archive/2012/02/24/2366806.html
http://docs.oracle.com/javaee/5/tutorial/doc/bnakc.html
http://docs.oracle.com/javaee/5/jstl/1.1/docs/tlddocs/
http://www.oracle.com/technetwork/java/index-jsp-135995.html