问题
I'm using Java Facelets and jQuery, however the expression
$('...')
in jQuery conflicts with EL expression, how do I escape the jQuery's one?
I'd like to escape a large chunk of Javascript, too.
ANSWERED
To convert the existing JSP to Facelets xhtml, it's convenient to just wrap the existing javascript by <![CDATA[ ... ]]>. However, the output scripts for <script> are wrapped by <!-- --> comment, which conflicts with CDATA section:
<script><![CDATA[ scripts... ]]></script>
=> <script><!-- <![CDATA[ scripts... ]]> --></script>
To resolve this problem, you should also comment out the CDATA:
<script>/* <![CDATA[ */ scripts... /* ]]> */</script>
=> <script><!-- /* <![CDATA[ */ scripts... /* ]]> */--></script>
See also When is a CDATA section necessary within a script tag?.
回答1:
This should normally not conflict. EL uses ${} syntax. Anyway, you could either use jQuery() instead (the $() is just a shorthand) or simply put JS code in its own .js file.
回答2:
Should anyone need to, the Expression Language Specification Version 2.2 Maintenance Release describes how to escape EL expressions:
To generate literal values that include the character sequence
"${"or"#{", the developer can choose to use a composite expression as shown here:${'${'}exprA} #{'#{'}exprB}The resulting values would then be the strings
${exprA}and#{exprB}.Alternatively, the escape characters
\$and\#can be used to escape what would otherwise be treated as an eval-expression. Given the literal-expressions:\${exprA} \#{exprB}
来源：https://stackoverflow.com/questions/5614089/how-to-escape-and-in-facelets-el