web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5"
 xmlns="http://java.sun.com/xml/ns/javaee"
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
 http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
  <display-name></display-name> 
  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>
 
  <filter>
   <filter-name>struts2</filter-name>
       <filter-class>
        org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter
       </filter-class>
 </filter>
 <filter-mapping>
  <filter-name>struts2</filter-name>
  <url-pattern>/*</url-pattern>
 </filter-mapping>
 
</web-app>

struts.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.1//EN" "http://struts.apache.org/dtds/struts-2.1.dtd">
<struts>
<constant name="struts.devMode" value="http://www.mamicode.com/GBK" />
<constant name="struts.custom.i18n.resources" value="http://www.mamicode.com/myResource"></constant>
<package name="json" namespace="/Department" extends="json-default">
  <action name="jsons" class="com.Jsons" method="jsons">
   <result name="sucess" type="json">/index.jsp</result>
  </action>
 </package>
</struts>   

myResource_zh_CN.properties和 myResource_en_US.properties在src路径下边

struts2 国际化