web.xml内定义异常
<error-page>
<error-code>404</error-code>
<location>/error/404.jsp</location>
</error-page>
<error-page>
<error-code>403</error-code>
<location>/error/403.jsp</location>
</error-page>
<error-page>
<error-code>500</error-code>
<location>/error/500.jsp</location>
</error-page>
<!-- java.lang.Exception异常错误 -->
<error-page>
<exception-type>java.lang.Exception</exception-type>
<location>/error/error.jsp</location>
</error-page>
