1.FORWARD
(1)a.jsp页面内容如此<jsp:forward page="/b.jsp"></jsp:forward>
(2)
a.jsp页面内容如此<%@page errorPage="b.jsp" %>
<%
if(true)
{double d=3/0;
%>
<%=d%>
<%} %>
在web.xml中在<filter-mapping>中配置<dispatche>FORWARD</dispatche>
2.INCLUDE
a.jsp页面内容如此<jsp:include page="/b.jsp"></jsp:include>
在web.xml中在<filter-mapping>中配置<dispatche>INCLUDE</dispatche>
3.REQUEST
该方式为默认方式，若访问路径是a.jsp则filter不会工作，若访问路径是b.jsp则filter会工作
4.ERROR
<error-page>
<exception-type>java.lang.ArithmeticException</exception-type>
<location>/b.jsp</location>
</error-page>
在web.xml中在<filter-mapping>中配置<dispatche>ERROR</dispatche>