//获取当前网址，如：

var curWwwPath=window.document.location.href;

//获取主机地址之后的目录如：/Tmall/index.jsp

var pathName=window.document.location.pathname;

var pos=curWwwPath.indexOf(pathName);

//获取主机地址，如：//localhost:8080

var localhostPaht=curWwwPath.substring(0,pos);

//获取带"/"的项目名，如：/Tmall

var projectName=pathName.substring(0,pathName.substr(1).indexOf('/')+1);