2.6. Using Multiple Resource Bundles
Problem
You want to break apart your application resources properties file into multiple files for improved organization and easier maintenance, particularly in a team environment.
Solution
Create separate properties files and declare a
message-resources
element for each file in your struts-config.xml
file:
<message-resources parameter="com.oreilly.strutsckbk.MessageResources"/> <message-resources parameter="com.oreilly.strutsckbk.LabelResources" key="labels"> </message-resources> <message-resources parameter="com.oreilly.strutsckbk.HeaderResources" key="headers"> </message-resources>
Discussion
Struts uses a concept known as
message resources to
provide a mechanism for storing error messages, field labels, and
other static text. With the default Struts implementation, you store
the messages as name/value pairs in a
.properties file. A message resources
set is basically the same
as a Java ResourceBundle.
You make your message resources properties file available to Struts
using the
message-resources
element. The parameter attribute identifies the
classpath-relative name of the properties file. You derive the value
for this attribute by replacing the path separator in the
file's path with a dot
(".") and removing the
.properties extension from the filename. For
example, if the properties file was located in
/WEB-INF/classes/com/oreilly/strutsckbk/MessageResources.properties,
you would set up the message resources element as follows:
<message-resources ...