java过滤html标签获取纯文本信息的实例

package com.lyt.base.util;

import java.util.regex.Pattern;

public class FilterHtmlUtil {
public static String Html2Text(String inputString){
  String htmlStr = inputString; //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{
     String regEx_script = "<[s]*?script[^>]*?>[sS]*?<[s]*?/[s]*?script[s]*?>"; //定义script的正则表达式{或<script[^>]*?>[sS]*?</script> }
     String regEx_style = "<[s]*?style[^>]*?>[sS]*?<[s]*?/[s]*?style[s]*?>"; //定义style的正则表达式{或<style[^>]*?>[sS]*?</style> }
     String regEx_html = "<[^>]+>"; //定义HTML标签的正则表达式
     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
     textStr = htmlStr;
  }catch(Exception e){
  e.printStackTrace();
  }
  return textStr;//返回文本字符串
} 
}