SSM项目引入文件失败

        <mvc:resources mapping="/styles/**"

        location="/css/"/>

        <mvc:resources mapping="/images/**"

        location="/images/"/>

<mvc:resources mapping="/js/**" location="/js/"/>

        <mvc:default-servlet-handler />   

或者

<servlet-mapping>

        <servlet-name>default</servlet-name>

        <url-pattern>*.css</url-pattern>

    </servlet-mapping>

    <servlet-mapping>

        <servlet-name>default</servlet-name>

        <url-pattern>*.gif</url-pattern>

    </servlet-mapping>

    <servlet-mapping>

        <servlet-name>default</servlet-name>

        <url-pattern>*.jpg</url-pattern>

    </servlet-mapping>

    <servlet-mapping>

        <servlet-name>default</servlet-name>

        <url-pattern>*.js</url-pattern>

    </servlet-mapping>