[web.xml] 세션시간, 에러페이지, http-method 설정

<!-- 로그인 세션 60분 x 3 = 3시간 설정 -->

<session-config>

<session-timeout>180</session-timeout>

</session-config>

<!-- 404, 500, 501 에러에대한 jsp error 페이지 설정 -->

<error-page>

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

<location>/WEB-INF/jsp/common/error/error404.jsp</location>

</error-page>

<error-page>

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

<location>/WEB-INF/jsp/common/error/error404.jsp</location>

</error-page>

<error-page>

<error-code>501</error-code>

<location>/WEB-INF/jsp/common/error/error404.jsp</location>

</error-page>

<!-- http 요청 메소드 제한 설정 : DELETE, PUT, OPTIONS, TRACE, PATCH 대한 메소드 막음 -->

<security-constraint>

<web-resource-collection>

<web-resource-name>NoAccess</web-resource-name>

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

<http-method>DELETE</http-method>

<http-method>PUT</http-method>

<http-method>OPTIONS</http-method>

<http-method>TRACE</http-method>

<http-method>PATCH </http-method>

</web-resource-collection>

<auth-constraint />

</security-constraint>

<!-- index 페이지 설정 -->

<welcome-file-list>

<welcome-file>welcome.jsp</welcome-file>

<welcome-file>index.jsp</welcome-file>

</welcome-file-list>