http://blog.csdn.net/lyhapple/archive/2007/10/09/1817308.aspx
request.getRequestDispatcher("/Test/test2.jsp").forward(request,response); //第一个办法
response.sendRedirect("/Test/test2.jsp"); //第二个办法
<filter-mapping>
<filter-name>SetMenuFilter</filter-name>
<url-pattern>/pages/*</url-pattern>
</filter-mapping>
<filter-mapping>
<filter-name>SetMenuFilter</filter-name>
<url-pattern>/pages/*.do</url-pattern>
</filter-mapping>