Tomcat下进入相应目录时，总是列出所有的文件列表，我如何关闭此功能

在
%TOMCAT_HOME%/conf/web.xml
中，将
    <servlet>
        <servlet-name>default</servlet-name>
        <servlet-class>
          org.apache.catalina.servlets.DefaultServlet
        </servlet-class>
        <init-param>
            <param-name>debug</param-name>
            <param-value>0</param-value>
        </init-param>
        <init-param>
            <param-name>listings</param-name>
            <param-value>true</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>

改为
    <servlet>
        <servlet-name>default</servlet-name>
        <servlet-class>
          org.apache.catalina.servlets.DefaultServlet
        </servlet-class>
        <init-param>
            <param-name>debug</param-name>
            <param-value>0</param-value>
        </init-param>
        <init-param>
            <param-name>listings</param-name>
            <param-value>false</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>

后面出现的404找不到文件在 或者505  在项目中

<error-page>

<error-code>500</error-code>

<location>/WEB-INF/views/error/500.jsp</location>

</error-page>

<error-page>

<error-code>404</error-code>

<location>/WEB-INF/views/error/404.jsp</location>

</error-page>