'matcher'에 해당되는 글 1건

  1. 2009.04.28 How to get hostname in http url in Java

I have a need to get hostname in httpd url. So. I made it simple by using pattern and matcher class.


public class Util {
public synchronized static String getHost(String domainURL) {
String host = new String();
Pattern pattern = Pattern.compile("(http://)+(\\w++-?\\w++)|(\\w++).?(\\w++.)++(\\w++)");
Matcher match = pattern.matcher(domainURL);
while (match.find()) {
String dashContained = match.group(2);
if (dashContained != null) {
host = match.group(2);
} else {
host = match.group(3);
}
}
return host;
}
}




public class GettingHostTest {
@Test
public void getHost() {
String url = "http://gmail.google.com"; // fulll domain
String host = MonitorUtil.getHost(url);
Assert.assertEndsWith("gmail", host);
}
@Test
public void getHost1() {
String url = "http://gmail1568h125.svr.google.com"; // sub domain
String host = MonitorUtil.getHost(url);
Assert.assertEndsWith("gmail1568h125", host);
}
@Test
public void getHost2() throws Exception {
String url = "http://alpha-gmail.google.com"; // dash contained domain
String host = MonitorUtil.getHost(url);
Assert.assertEndsWith("alpha-gmail", host);
}
}


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