In a grails gsp template, how can I use a server side comment without sitemesh throwing an error?
When I use a standard jsp comment block in a gsp template
&开发者_开发问答lt;%-- some server-side comment --%>
, sitemesh throws an 'unexpected token' error. Is there another comment syntax I can use?
The following works for me
%{-- <div>hello</div> --}%
You are missing a '%' sign. Write it as :
<%-- some server-side comment --%>
The original question was asking how to comment out anything in the GSP file. The only one that worked for me is
<%-- some code to comment out --%>,
the other answers won't work especially if the code being commented are grails tags. %{ and <% didn't work.
There's a little confusion among previous answers (and the question itself) that I wish was explained to me at first. There are a few types of server side comments on a .gsp. So within the .gsp document Server side comments go as follow:
<%@ page contentType="text/html; charset=UTF-8" %>
<html>
<head></head>
<body>
<!-- the basic HTML comment (not on server side) -->
<h1>Visible on client side</h1>
<%-- GSP common comment (server side only) --%>
%{-- GSP alternative approach (again, on server side only) --}%
<g:if test="${true}">
<h1>Invisible on client side, just in source code</h1>
</g:if>
<p>and the one asked for happens elsewhere,
whenever you write classic Groovy script</p>
<g:set var="myTitle"/>
<%
myVar = 'comment'
if(myVar.equals('comment')){
/*Needs the classic Java comment,
this happens whether you're writing a simple .gsp
or any _template.gsp*/
myTitle = "<h1>Visible on server side only</h1>".encodeAsRaw()
}
%>
${myTitle}
<p>.gsp template does not modify comment behaviour</p>
<g:render template="/templates/myTemplate" model="[:]"/>
</body>
</html>
file: _myTemplate.gsp
<h2>Template</h2>
<!-- visible -->
<% invisible %>
%{-- invisible --}%
<% /*invisible*/ %>
(Grails 2.5.5)
A regular java comment block will work
<% /* some server side comment */ %>
if you are writing a gsp that wants to display a uninterpreted grails g: tag, e.g. you want <g:link ... to appear as-is on the page, without being interpreted server-side, the following worked nicely for me.
In both the start and end tags, replace the < with <
e.g.
<g:link...>...</g:link> gets interpreted server-side and shows up in the page a link.
<g:link ...>...</g:link ...> shows up in the front-end page as <g:link...>...</g:link>
<%-- server side code --%> should work
加载中,请稍侯......
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