在jsp頁面寫
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
String s_type = (String)request.getAttribute("s_type");
%>
<head>標籤下寫
<base href="<%=basePath%>">
在<script type="text/javascript" src="<base href="<%=basePath%>">/js/jquery.js"/>