解析出字符串中的特定值

public static List<String> getNames(String s) {
    Pattern pattern = Pattern.compile("\\{#(\\w+)#\\}");
    Matcher m = pattern.matcher(s);

    List<String> result = new ArrayList<String>();
    while (m.find()) {
        result.add(m.group(1));
    }
    return result;
}

测试

public static void main(String[] args) {
    String s = "你好，{#username#}，你的宝贝{#goods#}已由{#express#}于{#time#}发出，请注意收货。联系电话{#phone#}。";

    for (String name : getNames(s)) {
        System.out.println(name);
    }
}

输出
username
goods
express
time
phone