import org.slf4j.Logger;
import org.slf4j.LoggerFactory;import org.springframework.util.StringUtils;import java.util.regex.Matcher;
import java.util.regex.Pattern;/*** HTML标签过滤工具** @author jim* @date 2017/11/27*/
public final class HtmlUtils {private static final Logger logger = LoggerFactory.getLogger(HtmlUtils.class);/*** 禁止实例化*/private HtmlUtils() {throw new IllegalStateException("禁止实例化");}/*** 过滤HTML标签输出文本** @param inputString 原字符串* @return 过滤后字符串*/public static String Html2Text(String inputString) {if (StringUtils.isEmpty(inputString)) {return "";}// 含html标签的字符串String htmlStr = inputString.trim();String textStr = "";Pattern p_script;Matcher m_script;Pattern p_style;Matcher m_style;Pattern p_html;Matcher m_html;Pattern p_space;Matcher m_space;Pattern p_escape;Matcher m_escape;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]*?>";// 定义HTML标签的正则表达式String regEx_html = "<[^>]+>";// 定义空格回车换行符String regEx_space = "\\s*|\t|\r|\n";// 定义转义字符String regEx_escape = "&.{2,6}?;";// 过滤script标签p_script = Pattern.compile(regEx_script, Pattern.CASE_INSENSITIVE);m_script = p_script.matcher(htmlStr);htmlStr = m_script.replaceAll("");// 过滤style标签p_style = Pattern.compile(regEx_style, Pattern.CASE_INSENSITIVE);m_style = p_style.matcher(htmlStr);htmlStr = m_style.replaceAll("");// 过滤html标签p_html = Pattern.compile(regEx_html, Pattern.CASE_INSENSITIVE);m_html = p_html.matcher(htmlStr);htmlStr = m_html.replaceAll("");// 过滤空格回车标签p_space = Pattern.compile(regEx_space, Pattern.CASE_INSENSITIVE);m_space = p_space.matcher(htmlStr);htmlStr = m_space.replaceAll("");// 过滤转义字符p_escape = Pattern.compile(regEx_escape, Pattern.CASE_INSENSITIVE);m_escape = p_escape.matcher(htmlStr);htmlStr = m_escape.replaceAll("");textStr = htmlStr;} catch (Exception e) {logger.info("Html2Text:{}", e.getMessage());}// 返回文本字符串return textStr;}
}

/*** 删除所有的HTML标签** @param source 需要进行除HTML的文本* @return*/
public static String deleteAllHTMLTag(String source) {if(source == null) {return "";}String s = source;/** 删除普通标签  */s = s.replaceAll("<(S*?)[^>]*>.*?|<.*? />", "");/** 删除转义字符 */s = s.replaceAll("&.{2,6}?;", "");return s;
}