js获取项目根路径
/** * http://localhost:8083/proj */
function getRootPath(){
//获取当前网址,如: http://localhost:8083/proj/meun.jsp
var curWwwPath = window.document.location.href;
//获取主机地址之后的目录,如: proj/meun.jsp
var pathName = window.document.location.pathname;
var pos = curWwwPath.indexOf(pathName);
//获取主机地址,如: http://localhost:8083
var localhostPath = curWwwPath.substring(0, pos);
//获取带"/"的项目名,如:/proj
var projectName = pathName.substring(0, pathName.substr(1).indexOf('/')+1);
return(localhostPath + projectName);
}