Groovy - 从String中提取并显示子字符串

Question

我想从下面的字符串中找到一个模式.所有单词都包含"MATCH.TEXT3",可能是最新的匹配结束号码.

{MATCH.TEXT1.1=[1, admin, 07/10/14 09:29:34], MATCH.TEXT2.2=[2, admin, 07/10/14 10:01:08], MATCH.TEXT3.3=[3, admin, 07/10/14 10:08:01], MATCH.TEXT3.4=[4, admin, 07/10/14 11:08:01], MATCH=[TEXT3]}

预期产出:

MATCH.TEXT3.4

or

MATCH.TEXT3.3
MATCH.TEXT3.4

Answer 1

您可以在字符串上使用findAll()方法来提取与给定模式匹配的标记:

String s = '{MATCH.TEXT1.1=[1, admin, 07/10/14 09:29:34], MATCH.TEXT2.2=[2, admin, 07/10/14 10:01:08], MATCH.TEXT3.3=[3, admin, 07/10/14 10:08:01], MATCH.TEXT3.4=[4, admin, 07/10/14 11:08:01], MATCH=[TEXT3]}'

List<String> tokens =  s.findAll(/MATCH\.TEXT3(\.[0-9]+)?/)

assert tokens == ['MATCH.TEXT3.3', 'MATCH.TEXT3.4']

String last = tokens.last()

assert last == 'MATCH.TEXT3.4'