<!-- druid -->
    <filter>
        <filter-name>druidWebStatFilter</filter-name>
        <filter-class>com.alibaba.druid.support.http.WebStatFilter</filter-class>
        <init-param>
            <param-name>exclusions</param-name>
            <param-value>/css/*,/context/*,/plug-in/*,/plug-in-ui/*,*.js,*.css,*.gif ,*.jpg,*.png,*. ico,*/druid*,/attached/*,/upload/*,/webpage/*,/swagger/*,*.jsp</param-value>
        </init-param>
    </filter>
    <filter-mapping>
        <filter-name>druidWebStatFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
    <!-- 配置 Druid 监控信息显示页面 -->
    <servlet>
        <servlet-name>druidStatView</servlet-name>
        <servlet-class>com.alibaba.druid.support.http.StatViewServlet</servlet-class>
        <!-- 允许清空统计数据
        <init-param>
            <param-name>resetEnable</param-name>
            <param-value>true</param-value>
        </init-param>
         -->
        <!-- 用户名 -->
        <init-param>
            <param-name>loginUsername</param-name>
            <param-value>druid</param-value>
        </init-param>
        <!-- 密码 -->
        <init-param>
            <param-name>loginPassword</param-name>
            <param-value>druid</param-value>
        </init-param>
    </servlet>
    <servlet-mapping>
        <servlet-name>druidStatView</servlet-name>
        <url-pattern>/webpage/system/druid/*</url-pattern>
    </servlet-mapping>
    <!-- druid -->

https://blog.csdn.net/renfufei/article/details/39553639