JSP定义异常页面

<!-- 定义默认访问页 -->
<welcome-file-list>
	<welcome-file>index.html</welcome-file>
	<welcome-file>index.action</welcome-file>
</welcome-file-list>

<!-- 出错页面定义 -->
<error-page>
	<exception-type>java.lang.Throwable</exception-type>
	<location>/html/error_page.html</location>
</error-page>
	<error-page>
	<error-code>500</error-code>
	<location>/html/error_page_500.html</location>
</error-page>
<error-page>
	<error-code>404</error-code>
	<location>/html/error_page_404.html</location>
</error-page>
<error-page>
	<error-code>403</error-code>
	<location>/html/error_page_403.html</location>
</error-page>