The unified EL of JSP 2.1 enabled this feature for any custom JSP tag that may or may not use the JSF API.

JSP 2.1统一后的EL对所有定制JSP标记(无论是否使用JSF API)启用这个特性。

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JSTL 1.2 is a maintenance release that supports the unified el and resolves issues that used to arise from trying to mix JSF tags and JSTL iteration tags in the same JSP page.

JSTL 1.2是一个维护版本，它支持统一el并解决了在同一个jsp页面中混用JSF标记和JSTL迭代标记时遇到的问题。

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JSP 2.1 and JSF 1.2 are more mutually compatible than prior releases, primarily because of the integration of their el syntax into the unified el. El enables operations such as.

与以前的版本相比，JSP 2.1和JSF 1.2之间的兼容性更好，这主要是因为它们的el语法已经集成为统一el。

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