JS中取得URL信息

 对于一个URL，如https://localhost:9999/myapp/index.html

alert("protocol="+window.location.protocol);//"protocol=https

alert("location.host="+window.location.host);//location.host=localhost:9999

alert("location.hostname="+window.location.hostname);//location.hostname=localhost

alert("window.location.port="+window.location.port);//window.location.port=9999

alert("window.location.pathname="+window.location.pathname);// window.location.pathname=/myapp/index.html

var appURL = window.location.protocol + "//" + window.location.host+"/";//https://localhost:9999/