正则取出值

 /**
     * 正则表达式匹配两个指定字符串中间的内容
     * @param soap
     * @return
     */
    public static List<String> getSubUtil(String soap, String rgex){
        List<String> list = new ArrayList<String>();
        Pattern pattern = Pattern.compile(rgex);// 匹配的模式
        Matcher m = pattern.matcher(soap);
        while (m.find()) {
            int i = 1;
            list.add(m.group(i));
            i++;
        }
        return list;
    }
		==========================
		
		   String regs = "\"actId\":\"(\\d+)\"";
        List<String> subUtil = getSubUtil(s, regs);
        System.out.println(subUtil);