Could not open ServletContext resource [/WEB-INF/applicationContext.xml]

1、首先检查在DispatcherServlet中是否添加了init-param标签

<servlet>
    <servlet-name>mvcServlet</servlet-name>
    <servlet-class>
        org.springframework.web.servlet.DispatcherServlet
    </servlet-class>
    <!-- 添加init-param标签 -->
    <init-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>/WEB-INF/classes/applicationContext.xml</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
    <servlet-name>mvcServlet</servlet-name>
    <url-pattern>/</url-pattern>
</servlet-mapping>
           

2、如果添加了标签，还是不行，建议重新配置tomacat、重启eclipse试试