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How to add a new PageFilter to my JSPWiki?

Easy. Just follow the next few steps.

1. Add the JAR to your class path#

Typically, a PageFilter is shipped in a JAR -file. You have to put this JAR -file in your CLASSPATH somehow so that Java can find it. The easiest way is to just drop it to your webapps/your wiki name/WEB-INF/lib -directory.

If you are using any of the Page Filters that ship within JSPWiki, then you don't have to perform this step - they are already in your class path.

2. Tell JSPWiki you want to use this filter#

Find the "filters.xml" file in your webapps/your wiki name/WEB-INF -directory. If you don't have one, create a new one as per the example below.

Example configuration file#

<?xml version="1.0"?>






Explanation on the different sections#

You can define as many filter -sections as you like. You can also define the same filter multiple times, in case you want to run the same filter many times. For example, you might want to ping multiple places using the PingWeblogsComFilter.

The order of the filters is significant: The filters are executed in exactly the same order as they appear in the "filters.xml" -file, so if you have many filters that modify the pages, you should be wary of the side effects =).

The parameters to the filters are defined inside the param -sections. A parameter has a "name" and a "value", both being free-form strings. A parameter may only occur once, i.e. the same name may occur only once in the whole filter -section.

Using an alternate filters.xml#

You can also set the location of the filters.xml -file from your For example, to set it to a config file in your /usr/local/jspwiki/config-dir, try:

jspwiki.filterConfig = /usr/local/jspwiki/config/filters.xml

Back to PageFilters.

There's a bit of confustion about the proper location for filters.xml.
  • The PageFilterConfiguration from the JSPWiki distribution states it should be in WEB-INF/lib
  • The states (in the comment to jspwiki.filterConfig it should be in WEB-INF
  • com.ecyrd.jspwiki.filters.FilterManager looks it up in the classpath, which tells me it should be in WEB-INF/classes.
Now what's the correct location? --Jawe
I ended up configuring jspwiki.filterConfig to specify an absolute path into the filters.xml.
jspwiki.filterConfig = /usr/local/jspwiki/etc/filters.xml

There seems to be some confusion about the location of the jar file versus the filters.xml file.

Jar files always go in WEB-INF/lib.

The location for filters.xml used by the FilterManager is the one set by the value of jspwiki.filterConfig in If this hasn't been set the default value (the value of DEFAULT_XMLFILE as defined in FilterManager) is /WEB-INF/filters.xml.

This being open source one can always look at the code for the final answer.

-- MurrayAltheim

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« This particular version was published on 19-Jul-2007 05:46 by MurrayAltheim.