jquery，域，获取 URL

Question

如何使用 jquery 获取域名？

Answer 1

You don't need jQuery for this, as simple javascript will suffice:

alert(document.domain);

See it in action:

 console.log("Output;"); console.log(location.hostname); console.log(document.domain); alert(window.location.hostname) console.log("document.URL : "+document.URL); console.log("document.location.href : "+document.location.href); console.log("document.location.origin : "+document.location.origin); console.log("document.location.hostname : "+document.location.hostname); console.log("document.location.host : "+document.location.host); console.log("document.location.pathname : "+document.location.pathname);

For further domain-related values, check out the properties of window.location online. You may find that location.host is a better option, as its content could differ from document.domain . For instance, the url http://192.168.1.80:8080 will have only the ipaddress in document.domain , but both the ipaddress and port number in location.host .

Answer 2

EDIT:

If you don't need to support IE10, you can simply use: document.location.origin

Original answer, if you need legacy support

You can get all this and more by inspecting the location object:

location = {
  host: "stackoverflow.com",
  hostname: "stackoverflow.com",
  href: "http://stackoverflow.com/questions/2300771/jquery-domain-get-url",
  pathname: "/questions/2300771/jquery-domain-get-url",
  port: "",
  protocol: "http:"
}

so:

location.host 

would be the domain, in this case stackoverflow.com. For the complete first part of the url, you can use:

location.protocol + "//" + location.host

which in this case would be http://stackoverflow.com

No jQuery required.

Answer 3

Similar to the answer before there there is

location.host

The location global has more fun facts about the current url as well. ( protocol, host, port, pathname, search, hash )

Answer 4

If you need from string, like me, use this function - it really works.

function getHost(url)
{
    var a = document.createElement('a');
    a.href = url;
    return a.hostname;
}

But note, if there is a subdomain (eg www.) in the URL it will get returned with the hostname. Conversely, if there is no subdomain the hostname will not have one either.

Answer 5

You can use below codes for get different parameters of Current URL

alert("document.URL : "+document.URL);
alert("document.location.href : "+document.location.href);
alert("document.location.origin : "+document.location.origin);
alert("document.location.hostname : "+document.location.hostname);
alert("document.location.host : "+document.location.host);
alert("document.location.pathname : "+document.location.pathname);

Answer 6

不需要 jQuery，使用简单的 javascript：

document.domain

Answer 7

document.baseURI gives you the domain + port. It's used if an image tag uses a relative instead of an absolute path. Probably already solved, but it might be useful for other guys.

Answer 8

var part = location.hostname.split('.');
var subdomains = part.shift();
var upperleveldomains = part.join('.');

second-level-domain, you might use

var sleveldomain = parts.slice(-2).join('.');

Answer 9

check this

alert(window.location.hostname);

this will return host name as www.domain.com

Answer 10

If you want to know the "registered domain", check this out: http://lbolla.wordpress.com/2011/04/05/get-registered-domain-in-python-and-javascript/

I've implemented reg-dom-libs (http://www.dkim-reputation.org/regdom-libs/) in Javascript and Python.

Answer 11

//If url is something.domain.com this returns -> domain.com
function getDomain() {
  return window.location.hostname.replace(/([a-z]+.)/,"");
}

Answer 12

//If url is something.domain.com this returns -> domain.com
function getDomain() {
  return window.location.hostname.replace(/([a-zA-Z0-9]+.)/,"");
}