java正则表达式去掉所有HTML标签

package com.xz.cxzy.utils;import java.util.regex.Matcher;import java.util.regex.Pattern;public class HtmlUtil {private static final String regEx_script = "<script[^>]*?>[\s\S]*?<\/script>"; // 定义script的正则表达式    private static final String regEx_style = "<style[^>]*?>[\s\S]*?<\/style>"; // 定义style的正则表达式    private static final String regEx_html = "<[^>]+>"; // 定义HTML标签的正则表达式    private static final String regEx_space = "\s*|\t|\r|\n";//定义空格回车换行符        /**     * @param htmlStr     * @return     *  删除Html标签     */    public static String delHTMLTag(String htmlStr) {        Pattern p_script = Pattern.compile(regEx_script, Pattern.CASE_INSENSITIVE);        Matcher m_script = p_script.matcher(htmlStr);        htmlStr = m_script.replaceAll(""); // 过滤script标签        Pattern p_style = Pattern.compile(regEx_style, Pattern.CASE_INSENSITIVE);        Matcher m_style = p_style.matcher(htmlStr);        htmlStr = m_style.replaceAll(""); // 过滤style标签        Pattern p_html = Pattern.compile(regEx_html, Pattern.CASE_INSENSITIVE);        Matcher m_html = p_html.matcher(htmlStr);        htmlStr = m_html.replaceAll(""); // 过滤html标签        Pattern p_space = Pattern.compile(regEx_space, Pattern.CASE_INSENSITIVE);        Matcher m_space = p_space.matcher(htmlStr);        htmlStr = m_space.replaceAll(""); // 过滤空格回车标签        return htmlStr.trim(); // 返回文本字符串    }        public static String getTextFromHtml(String htmlStr){    htmlStr = delHTMLTag(htmlStr);    htmlStr = htmlStr.replaceAll(" ", "");    htmlStr = htmlStr.substring(0, htmlStr.indexOf("。")+1);    return htmlStr;    }        public static void main(String[] args) {    String str = "<div style='text-align:center;'> 整治“四风”   清弊除垢<br/><span style='font-size:14px;'> </span><span style='font-size:18px;'>公司召开党的群众路线教育实践活动动员大会</span><br/></div>";System.out.println(getTextFromHtml(str));}}package com.xz.cxzy.utils;import java.util.