从 Java/Android 中的 URL 获取域名
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Get domain name from URL in Java/Android
提问by hansottowirtz
In my app, I need to get the favicon.ico from a URL. (eg. "http://google.com/favicon.ico"). Users can input all kinds of URLs, and I need only the domain name.
在我的应用程序中，我需要从 URL 获取 favicon.ico。（例如“ http://google.com/favicon.ico”）。用户可以输入各种网址，我只需要域名。
Examples:
例子：
http://drive.google.com/bla/bla/bla -> drive.google.com
www.facebook.com/lol -> www.facebook.com
192.168.0.1 -> 192.168.0.1 (but not really necessary)
Does anyone have a method to get this? Thanks!
有没有人有办法得到这个？谢谢！
采纳答案by peshkira
Try using something like
尝试使用类似的东西
String u = "www.facebook.com/lol";
URL url = new URL(u);
String host = url.getHost(); // should be www.facebook.com
If you need different parts of the Url look at the documentation and the other getters here: http://developer.android.com/reference/java/net/URL.html
如果您需要 Url 的不同部分，请查看此处的文档和其他 getter：http: //developer.android.com/reference/java/net/URL.html
