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在web.xml 追加
<security-constraint>
<web-resource-collection>
<web-resource-name>disable_conf</web-resource-name>
<url-pattern>*.xml</url-pattern>
<url-pattern>*.log</url-pattern>
<url-pattern>*.dll</url-pattern>
</web-resource-collection>
<auth-constraint />
</security-constraint>