java正则使用

• 正则切割

String regex = "正则";
Pattern pattern = Pattern.complie(regex);
String[] strArr = pattern.split("需要正则切割的字符串");

• 正则捕获

String regex = "正则";
Pattern pattern = Pattern.complie(regex);
Matcher matcher = pattern.matcher("需要处理的字符串");
matcher.find();//返回布尔值 表示是否能捕获到
log(matcher.group(0));
log(matcher.group(1));
...

• 正则完全匹配

       Pattern pattern = Pattern.compile(".{3}abc.{3}");
        Matcher matcher = pattern.matcher("asdabcasd");
        boolean b = matcher.matches();
        System.out.println(b);//true