public String getHeadUrl(HttpServletRequest request) {
String projName=request.getContextPath();
String netPort=request.getRequestURL().toString().split("//")[1].split("/")[0];
String netAddr="http://"+netPort;
return netAddr+projName;
}
JS:
//获取当前网址,如:http://127.0.0.1:8080/Tmall/index.jsp?id=1
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:http://127.0.0.1:8080
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);