Java regex如何在括号中取值[重复]

Question

 lineIdentifier:dasda creationDate:[08/06/2018 00:00:00 TO *] text: [dasda, lll]

使用regex时，我只想取回creationdate中的数据

08/06/2018 00:00:00和*

Pattern r = Pattern.compile("\\[(\\w*)\\]");
        Matcher m = r.matcher(result);

        if (m.find( )) {
            System.out.println("Found value: " + m.group(0) );
        }else {
            System.out.println("NO MATCH");
        }

Answer 1

您可以尝试：

Pattern r = Pattern.compile(".*(creationDate:\\[(.+?) TO (.+?)\\]?).*");
Matcher m = r.matcher("lineIdentifier:dasda creationDate:[08/06/2018 00:00:00 TO *] text: [dasda, lll]");

if (m.find( )) {
      System.out.println("Found value: " + m.group(2) );
      System.out.println("Found value: " + m.group(3) );
}else {
      System.out.println("NO MATCH");
}