java正则表达式取字符串的数据

public class instanceoftest {
    public static void main(String[] args) {
        String regx = "commissionamount:(\\d+)";
        Matcher m = Pattern.compile(regx).matcher("||commissionamount:10098||meal_plan:Room[919075802]-早餐的收費為每人每晚JPY2,000。||commissionamount:3208||meal_plan:Room[919075803]-早餐的收費為每人每晚JPY2,000。||commissionamount:4752||meal_plan:Room[919075801]-早餐的收費為每人每晚JPY2,000。||commissionamount:2970   Total Surcharge is:18775");
        while (m.find()) {
            System.err.println(m.group(1));
        }
    }
}