How to comment in jspx page

问题

How to comment the code in jspx page? I have tried several methods,

<!--  -->
<%-- -->

but it doesn't not work!

So I have to:

<c:if test="${false}">code</c:if>,

it is really urgly, Is there any other ways? Any help is appreciated!

回答1:

JSP.1.5.2 Comments in JSP Documents

Comments in JSP documents use the XML syntax... The body of the content is ignored completely. [3]

CDATA sections may occur anywhere character data may occur; they are used to escape blocks of text containing characters which would otherwise be recognized as markup. [4]

java.sun.com/products/jsp/syntax/2.0/syntaxref203.html#1004313
java.net/jira/browse/JSP_SPEC_PUBLIC-105
http://jsp.java.net/spec/jsp-2_1-fr-spec.pdf
http://www.w3.org/TR/REC-xml/#sec-cdata-sect

<![CDATA[]]>

回答2:

Just use  for comments. JSPX file uses XML syntax so that's the reason XML style comment work here.

Also read article Creating a JSP Document for understanding the difference between JSP standard syntax and XML syntax

回答3:

You were close with one of your attempts, JSP comments look like below:

<%-- some commented out stuff --%>

回答4:

Have you tried XML IGNORE?

<![IGNORE[
  <!-- commented out XML -->
]]>

Change IGNORE to INCLUDE when you want it back.

回答5:

There are 2 kinds of comments: JSP comments and HTML comments.

JSP commet: <%-- comment text --%>
HTML/XML comment:

JSP comments are not exported to HTML and are ignored by the JSP Engine.

HTML comments are exported to HTML because they are valid HTML tags.

来源：https://stackoverflow.com/questions/3022015/how-to-comment-in-jspx-page

标签

java

jsp

jspx