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JavaScript获取当前url根目录(路径)
jsp:
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@taglib prefix="s" uri="/struts-tags"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme() + "://"+ request.getServerName() + ":" + request.getServerPort()+ path + "/";
%>
<!DOCTYPE html>
<html>
<head>
<base href="http://www.mamicode.com/">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<link href="http://www.mamicode.com/<%=basePath%>/css/mycss/login_css.css" rel="stylesheet" type="text/css" />
</head>
js:
方法一
function
getRealPath(){
//获取当前网址,如: http://localhost:8083/myproj/view/my.jsp
var
curWwwPath=window.document.location.href;
//获取主机地址之后的目录,如: myproj/view/my.jsp
var
pathName=window.document.location.pathname;
var
pos=curWwwPath.indexOf(pathName);
//获取主机地址,如: http://localhost:8083
var
localhostPaht=curWwwPath.substring(0,pos);
//获取带"/"的项目名,如:/myproj
var
projectName=pathName.substring(0,pathName.substr(1).indexOf(
‘/‘
)+1);
//得到了 http://localhost:8083/myproj
var
realPath=localhostPaht+projectName;
alert(realPath);
}
方法二:
function
getRootPath_dc() {
var
pathName = window.location.pathname.substring(1);
var
webName = pathName ==
‘‘
?
‘‘
: pathName.substring(0, pathName.indexOf(
‘/‘
));
if
(webName ==
""
) {
return
window.location.protocol +
‘//‘
+ window.location.host;
}
else
{
return
window.location.protocol +
‘//‘
+ window.location.host +
‘/‘
+ webName;
}
}
常识补充:
- //获取当前窗口的Url
- //returnUrl=http://localhost:8080/shopping/buyCart.shtml?skuId=510&amount=1
- window.location.href
- //获取当前窗口的主机名 例如:http://localhost:8080
- window.location.host
- //获取当前窗口的端口 例如: 8080
- window.location.port
- //获取当前窗口的路径 例如: /shopping/buyCart.shtml
- window.location.pathname
- //获取当前文档的Url
- document.URL
- //获取参数 例如: ?skuId=510&amount=1
- window.location.search
- //跳出当前窗口,打开新窗口
- window.open(url);
- document默示的是一个文档对象,window默示的是一个窗口对象,一个窗口下可以有多个文档对象。
所以一个窗口下只有一个window.location.href,然则可能有多个document.URL、document.location.href - window.location.href和document.location.href可以被赋值,然后跳转到其它页面,document.URL只能读不克不及写
JavaScript获取当前url根目录(路径)