ExceptionTranslationFilter

- 필터 체인 중 마지막에 위치. - 접근 거부에 대한 처리, 인증 실패에 대한 처리를 한다. <bean id="exceptionTranslationFilter"            class="org.springframework.security.web.access.ExceptionTranslationFilter">     <property name="authenticationEntryPoint" ref="authenticationEntryPoint" />     <property name="accessDeniedHandler" ref="accessDeniedHandler" /> </bean> <bean id="authenticationEntryPoint"            class="org.springframework.security.web.authentication.LoginUrlAuthenticationEntryPoint">     <property name="loginFormUrl" value="/login.do" /> </bean> <bean id="accessDeniedHandler"            class="org.springframework.security.web.access.AccessDeniedHandlerImpl">     <property name="errorPage" value="/accessDenied.do" /> </bean> * BasicAuthenticationEntryPoint, CasAuthenticationEntryPoint, DelegatingAuthenticationEntryPoint,    DigestAuthenticationEntryPoint, LoginUrlAuthenticationEntryPoint [401]    => 인증 예외 * AccessDeniedHandlerImpl [403] => 인가(권한) 예외