Html2TxtUtil.java

package cn.sinobest.ypgj.util;

import java.util.regex.Pattern;

/**
 * 过滤JSP页面标签
 * 
 * @author linmi
 *
 */
public class Html2TxtUtil {

	public Html2TxtUtil() {
		//
	}

    public static String html2txt(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;
        java.util.regex.Pattern p_ba;
        java.util.regex.Matcher m_ba;

        try {
            String regEx_script = "<[\\s]*?script[^>]*?>[\\s\\S]*?<[\\s]*?\\/[\\s]*?script[\\s]*?>"; //定义script的正则表达式{或<script[^>]*?>[\\s\\S]*?<\\/script> }
            String regEx_style = "<[\\s]*?style[^>]*?>[\\s\\S]*?<[\\s]*?\\/[\\s]*?style[\\s]*?>"; //定义style的正则表达式{或<style[^>]*?>[\\s\\S]*?<\\/style> }
            String regEx_html = "<[^>]+>"; //定义HTML标签的正则表达式
            String patternStr = "\\s+";

            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_ba = Pattern.compile(patternStr,Pattern.CASE_INSENSITIVE);
            m_ba = p_ba.matcher(htmlStr);
            //htmlStr = m_ba.replaceAll(""); //过滤空格

            textStr = htmlStr;

        }catch(Exception e) {
            System.err.println("Html2Text: " + e.getMessage());
        }
        return textStr;//返回文本字符串
    }
}