content: package site.alanliang.geekblog.utils;
  
  import java.util.regex.Pattern;
  
  public class HtmlUtil {
  
      /**
       * 删除Html标签
       *
       * @param inputText 输入文本
       * @return
       */
      public static String removeTag(String inputText) {
          if (inputText == null)
              return null;
          String htmlStr = inputText; // 含html标签的字符串
          String textStr = "";
          java.util.regex.Pattern p_script;
          java.util.regex.Matcher m_script;
          java.util.regex.Pattern p_style;
          java.util.regex.Matcher m_style;
          java.util.regex.Pattern p_html;
          java.util.regex.Matcher m_html;
          try {
              //定义script的正则表达式{或<script[^>]*?>[\\s\\S]*?<\\/script>
              String regEx_script = "<[\\s]*?script[^>]*?>[\\s\\S]*?<[\\s]*?\\/[\\s]*?script[\\s]*?>";
              //定义style的正则表达式{或<style[^>]*?>[\\s\\S]*?<\\/style>
              String regEx_style = "<[\\s]*?style[^>]*?>[\\s\\S]*?<[\\s]*?\\/[\\s]*?style[\\s]*?>";
              String regEx_html = "<[^>]+>"; // 定义HTML标签的正则表达式
              String regEx_escape = "&.+.;";
              p_script = Pattern.compile(regEx_script, Pattern.CASE_INSENSITIVE);
              m_script = p_script.matcher(htmlStr);
              htmlStr = m_script.replaceAll(""); // 过滤script标签
              p_style = Pattern.compile(regEx_style, Pattern.CASE_INSENSITIVE);
              m_style = p_style.matcher(htmlStr);
              htmlStr = m_style.replaceAll(""); // 过滤style标签
              p_html = Pattern.compile(regEx_html, Pattern.CASE_INSENSITIVE);
              m_html = p_html.matcher(htmlStr);
              htmlStr = m_html.replaceAll(""); // 过滤html标签
              p_html = Pattern.compile(regEx_escape, Pattern.CASE_INSENSITIVE);
              m_html = p_html.matcher(htmlStr);
              htmlStr = m_html.replaceAll(""); // 过滤html转义字符
              textStr = htmlStr;
          } catch (Exception e) {
              e.printStackTrace();
          }
          return textStr;// 返回文本字符串
      }
  
  }
  