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jsptomcatwhitespace

Strip whitespace from jsp output

How can I strip out extra whitespace from jsp pages' output? Is there a switch I can flip on my web.xml? Is there a Tomcat specific setting?

Solution

  • There is a trimWhiteSpaces directive that should accomplish this,

    In your JSP:

    <%@ page trimDirectiveWhitespaces="true" %>

    Or in the jsp-config section your web.xml (Note that this works starting from servlet specification 2.5.):

    <jsp-config>
  <jsp-property-group>
    <url-pattern>*.jsp</url-pattern>
    <trim-directive-whitespaces>true</trim-directive-whitespaces>
  </jsp-property-group>
</jsp-config>

    Unfortunately if you have a required space it might also need strip that, so you may need a non-breaking space in some locations.