原文出处:http://blog.csdn.net/xmq_666/article/details/7452710/

/**
 * 创建人:xxx
 * 创建时间:2012-04-12
 * JS获取URL地址
 * @returns 返回URL 如:http://localhost:8080
 */

function getURL(){
    var curWwwPath = window.document.location.href;
    //获取主机地址之后的目录,如: cis/website/meun.htm
    var pathName = window.document.location.pathname;
    var pos = curWwwPath.indexOf(pathName); //获取主机地址,如: http://localhost:8080
    var localhostPaht = curWwwPath.substring(0, pos); //获取带"/"的项目名,如:/cis
    var projectName = pathName.substring(0, pathName.substr(1).indexOf('/') + 1);
    var rootPath = localhostPaht + projectName;
    return rootPath;
    
}



本文转载:CSDN博客