去除字符串中的HTML标签

 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
 public class StrUtils {
 
     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_img = "<img\\s*([^>]*)\\s*src=\\\"(.*?)\\\"\\s*([^>]*)>";// 定义image标签的正则表达式
     private static final String regEx_emoji = "[\\ud83c\\udc00-\\ud83c\\udfff]|[\\ud83d\\udc00-\\ud83d\\udfff]|[\\ud83e\\udd00-\\ud83e\\udfff]|[\\u2600-\\u27ff]";// 定义表情标签的正则表达式
     private static final String regEx_space = "\\s*|\t|\r|\n";//定义空格回车换行符
     private static final String regEx_special = "\\&[a-zA-Z]{1,10};";//定义特殊字符
 
 
     public static String delHTMLTag(String htmlStr) {
 
         // 过滤script标签
         Pattern p_script = Pattern.compile(regEx_script, Pattern.CASE_INSENSITIVE);
         Matcher m_script = p_script.matcher(htmlStr);
         htmlStr = m_script.replaceAll("");
 
         // 过滤style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image标签
         Pattern p_img = Pattern.compile(regEx_img, Pattern.CASE_INSENSITIVE);
         Matcher m_img = p_img.matcher(htmlStr);
         htmlStr = m_img.replaceAll("");
 
         // 过滤emoji标签
         Pattern p_emoji = Pattern.compile(regEx_emoji, Pattern.CASE_INSENSITIVE);
         Matcher m_emoji = p_emoji.matcher(htmlStr);
         htmlStr = m_emoji.replaceAll("");
 
         // 过滤html标签
         Pattern p_html = Pattern.compile(regEx_html, Pattern.CASE_INSENSITIVE);
         Matcher m_html = p_html.matcher(htmlStr);
         htmlStr = m_html.replaceAll("");
 
         // 过滤空格回车标签
         Pattern p_space = Pattern.compile(regEx_space, Pattern.CASE_INSENSITIVE);
         Matcher m_space = p_space.matcher(htmlStr);
         htmlStr = m_space.replaceAll("");
 
         // 过滤特殊字符
         Pattern p_special = Pattern.compile(regEx_special, Pattern.CASE_INSENSITIVE);
         Matcher m_special = p_special.matcher(htmlStr);
         htmlStr = m_special.replaceAll("");
 
         return htmlStr.trim(); // 返回文本字符串
     }
 
     public static String getTextFromHtml(String htmlStr){
         htmlStr = delHTMLTag(htmlStr);
         htmlStr = htmlStr.replaceAll(" ", "");
         if (htmlStr.length()>50){
             htmlStr = htmlStr.substring(0,50);
         }
         return htmlStr;
     }
 
 }