String url = "http://localhost:8080/dummy/index.jsp?key1=value1&key2=value2;http://localhost:8080/dummy/index.jsp?key2=value3;";
Pattern pattern = Pattern.compile("(key2=)(.+?)(&|;)");
Matcher matcher = pattern.matcher(url);
while (matcher.find()) {
System.out.println(matcher.group(2));
}
Output:
value2
value3
Note: Usually, while creating patterns, if we are interested in groups, we categorize them in parenthesis as shown above. In our example, we have 3 groups, out of which we are interested in group-2.
Pattern pattern = Pattern.compile("(key2=)(.+?)(&|;)");
Matcher matcher = pattern.matcher(url);
while (matcher.find()) {
System.out.println(matcher.group(2));
}
Output:
value2
value3
Note: Usually, while creating patterns, if we are interested in groups, we categorize them in parenthesis as shown above. In our example, we have 3 groups, out of which we are interested in group-2.
