辛淼 Jin

1. Set Password for listenner  a basic security requirement is to protect oracle listener with a password. Lsnrctl LSNRCTL>set current_listener <listener name> LSNRCTL>change_password old password: New password: Reenter new password: LSNRCTL>set password Password: LSNRCTL>save_config After implemented lsnrctl-save_config, you can check what was generated by looking in the listener.ora file. This is what was generated from the above commands:     PASSWORDS_LISTENER = N1599554r6236532B - - >  Remove the listener password do the following:     LSNRCTL> set password     Password:     The command completed successfully     LSNRCTL> stop     LSNRCTL>  2. Set monitor log     LSNRCTL>set current_listener <listener name>     LSNRCTL>set password Password:<input password>     LSNRCT...

in web.xml.   < error-page >        < error-code > 404 </ error-code >       < location > /WEB-INF/pages/errors/error404.jsp </ location >      </ error-page >  In error404.jsp, don't get user message by using SecurityContextHolder.getContext().getAuthentication(). Solution: <filter>          <filter-name>springSecurityFilterChain</filter-name>          <filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>      </filter>      <filter-mapping>          <filter-name>springSecurityFilterChain</filter-name>          <url-pattern>/*</url-pattern>          <...