config web.xml ให้ชี้ไปที่ file application context spring

web.xml

 
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<listener>
    <listener-class>
        org.springframework.web.context.ContextLoaderListener
     </listener-class>
</listener>
 
<context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>/WEB-INF/applicationContext*.xml</param-value>
</context-param>
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