java正则匹配

java 代码

public static void main(String[] args) {

        Pattern p = Pattern.compile(regex);

        Matcher m = p.matcher(text);
        while (m.find()) {
                System.out.println(m.group(1));
        }
}

我要匹配的字符串为:

xml 代码

String regex = "<a href=\"/theater/cate.php\\?id=(\\d*)\".*?</a>";

String text = "< a href=\"/theater/cate.php?id=236\">交互商品演示</a><a href=\ "/theater/cate.php?id=253\" class=\"colorRed\">其他交互演示</a>< a href=\"/theater/cate.php?id=255\">网站片头</a>";

打印出:
236
253
255