file-upload/src/main/resources/struts.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
        "-//Apache Software Foundation//DTD Struts Configuration 2.5//EN"
        "https://struts.apache.org/dtds/struts-2.5.dtd">
<struts>
    <constant name="struts.enable.DynamicMethodInvocation" value="false"/>
    <constant name="struts.devMode" value="true"/>

    <package name="default" namespace="/" extends="struts-default">

        <default-action-ref name="index"/>

        <action name="index">
            <result type="redirectAction">
                <param name="actionName">upload</param>
            </result>
        </action>

        <action name="upload" class="org.apache.struts.example.Upload">
            <result name="input">WEB-INF/upload.jsp</result>
        </action>

    </package>

    <!-- Add addition packages and configuration here. -->
</struts>