一、目錄定位

1、./是當前目錄 2、../是父級目錄 3、/是根目錄 根目錄指最上一級目錄,它是相對子目錄來說的。

同一級目錄下

<link rel="stylesheet" href="css/list_table.css"/>

獲取父級目錄

afvVoltage.jsp檔案引入incl資料夾下的檔案

<%@ include file= "../../../../platform/incl/Include_Header.jsp" %>

二、獲取專案根路徑

request.getContextPath()拿到的是你的web專案的根路徑，就是webContent。

${pageContext.request.contextPath}獲取的結果都是專案名（上下文），與上面一樣

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt"%>
<%@ taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/functions"%>


<link rel="stylesheet" type="text/css" href="<%=request.getContextPath() %>/platform/views/cusviews/devMatainView/js/layui/css/layui.css"> 
<script src="js/jquery-1.8.3.min.js" type="text/javascript"></script>
<script type="text/javascript" src="<%=request.getContextPath() %>/platform/views/cusviews/devMatainView/My97DatePicker/WdatePicker.js" ></script>
<script type="text/javascript" src="<%=request.getContextPath() %>/platform/views/cusviews/devMatainView/js/jquery.form.js"></script>
<script type="text/javascript" src="<%=request.getContextPath() %>/platform/views/cusviews/devMatainView/js/afvVoltage.js"></script>
<script type="text/javascript" src="<%=request.getContextPath() %>/platform/views/cusviews/devMatainView/js/layui/layui.js" charset="utf-8"></script>
 

<c:set var="ctx" value="${pageContext.request.contextPath}" />
<input id="root" type="hidden" value="${ctx }"/>
<input id="ids" type="hidden" value="<%=request.getParameter("ids") %>"/>
<input id="volType" type="hidden" value="<%=request.getParameter("volType") %>"/>
<input id="orandid" type="hidden" value="<%=request.getParameter("orandid") %>"/>
 

三、獲取專案的完整的路徑和埠號

<%
    String path = request.getContextPath();
    String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

通過執行結果可知<%=basePath%>可知結果是