一、JSP跳转的方式:
1、href
<a href="<%=path%>/servlet/ProductMain?type=book" ><span lang=EN-US><span lang=EN-US>书籍类</span></span></a>
2、onclick
<input type="button" onclick="window.location.href='<%=path%>/servlet/ProductAdd?type=<%=type %>'" value="添加">
传参