获取tomcat当前路径

默认路径：如本机就是http://localhost:8080/你自己配置的tomcat

别人访问你的项目：就是你的ip:端口/你自己配置的tomcat

function getRootPath()
{
    var pathName = window.location.pathname.substring(1);
    var webName = pathName == '' ? '' : pathName.substring(0, pathName.indexOf('/'));
    return window.location.protocol + '//' + window.location.host + '/'+ webName + '/';
}