富文本圖片獲取url

public static List<String> getImgStr(String htmlStr) {
        List<String> list = new ArrayList<>();
        String img = "";
        Pattern p_image;
        Matcher m_image;
        // String regEx_img = "<img.*src=(.*?)[^>]*?>"; //圖片鏈接地址
        String regEx_img = "<img.*src\\s*=\\s*(.*?)[^>]*?>";
        p_image = Pattern.compile(regEx_img, Pattern.CASE_INSENSITIVE);
        m_image = p_image.matcher(htmlStr);
        while (m_image.find()) {
            // 得到<img />數據
            img = m_image.group();
            // 匹配<img>中的src數據
            Matcher m = Pattern.compile("src\\s*=\\s*\"?(.*?)(\"|>|\\s+)").matcher(img);
            while (m.find()) {
                list.add(m.group(1));
            }
        }
        return list;
    }