HTMLUtils.java

package com.lst.lc.utils;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class HTMLUtils {

	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;
	}

}