JS中怎么获得项目的根目录名

一、在当前JSP中的java代码中获取

java代码

String path = request.getContextPath();

String basePath = request.getScheme() +"://"

+ request.getServerName() +":"+ request.getServerPort()

+ path +"/";

再在JS中调用:

var basePath ='<%=basePath%>';

alert(basePath);//http://localhost:8080/

二、在跳入当前页面的action中获取根路径，放入request中，再在JS中获取

String path = request.getContextPath();

String basePath = request.getScheme() +"://"

+ request.getServerName() +":"+ request.getServerPort()

+ path +"/";

request.setAttribute("basePath", basePath);

再在JS中通过EL表达式调用:

var basePath = ${'basePath'};

alert(basePath);//http://localhost:8080/