Remove Whitespace From HTML / JSP / JSF
Remove Whitespace From HTML / JSP / JSF explains about implementing a servlet filter for removing whitespace & blank lines from your html/jsp/jsf output, which will reduce the payload and improve the overall web application performance
If you need a solution for below questions
How To Remove Whitespace From Response In Your Java Web Application?
How To Remove Whitespace From JSP/JSF And HTML?
then servlet filter will be the right choice, because by using servlet filter, we can implement this in a single place rather than on implementing every page
if you dont know about Servlet Filter, you can follow servlet filter Tutorial Here I am using, whitespace removing filter available from http://balusc.blogspot.in/2007/12/whitespacefilter.html
By using this filter you can strip/trim whitespace & newline characters from your html/jsp/jsf pages without losing actual contents
Required Libraries
You need to download
Following jar must be in classpath
- whitespacefilter.jar (I am created a jar file using WhitespaceFilter.java)
Package Structure
web.xml
<?xml version="1.0" encoding="UTF-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0"> <display-name>whitespace Filter</display-name> <filter> <description> This filter class removes any whitespace from the response. It actually trims all leading and trailing spaces or tabs and newlines before writing to the response stream. This will greatly save the network bandwith, but this will make the source of the response more hard to read. </description> <filter-name>whitespaceFilter</filter-name> <filter-class>net.balusc.webapp.WhitespaceFilter</filter-class> </filter> <filter-mapping> <filter-name>whitespaceFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> </web-app>
Output
