EN
Java - get domain name from given url
3 points
In this article, we would like to show how to get a domain from a given URL in Java.
Quick solution:
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// import java.net.URI;2
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String url = "https://dirask.com";4
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URI uri = new URI(url);6
String host = uri.getHost();7
String domain = host.startsWith("www.") ? host.substring(4) : host;8
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System.out.println(domain); // dirask.com
In this section, the code was split to provide reusable DomainUtil class.
Program.java file:
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import java.net.URISyntaxException;2
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public class Program {4
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public static void main(String[] args) throws URISyntaxException {6
String url = "https://dirask.com/posts/123";7
String domain = DomainUtil.getDomainName(url);8
Syste.out.println(domain); // dirask.com9
}10
}Example output:
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dirask.com
DomainUtil.java file:
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import java.net.URI;2
import java.net.URISyntaxException;3
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public class DomainUtil {5
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public static String getDomainName(String url) throws URISyntaxException {7
URI uri = new URI(url);8
String host = uri.getHost();9
return host.startsWith("www.") ? host.substring(4) : host;10
}11
}