java 利用正则解析json

public static void main(String[] args)throws Exception {
        Map map = new HashMap();
        String str = "{Group:{\"id\":\"9\",\"name\":\"hoochiang\",\"columns\":[{\"lev\":\"SEQ_SDPI_DASHBOARD\",\"col\":\"uuu\"},{\"lev\":\"TTT_UUU_YYY\",\"col\":\"ooo\"}]}}";
        //Pattern p = Pattern.compile("[\\w[^\\[\\],{}]]+");
    Pattern p = Pattern.compile("(?:\"\\w+\"):(?:\"[^\"]+\")");          
        //Matcher m = p.matcher(json.replaceAll("'|\"", ""));
    Matcher m = p.matcher(str);
        String[] _strs = null;
        while (m.find()) {          
            _strs = m.group().split(":");          
            if(_strs.length == 2 )
                map.put(_strs[0].replaceAll("'|\"", ""), _strs[1].trim().replaceAll("'|\"", ""));
        }
        System.out.println(map);
    }