package com.linoer.utils;  

import java.util.ArrayList;

import java.util.List;

import java.util.regex.Matcher;

import java.util.regex.Pattern;  

/**

 * HTML

 * @author linoer

 */

public class HTMLSpirit {

    /** 

     * 去掉所有的HTML标签 

     * @param htmlStr 

     * @return 

     */

    public static String delHTMLTag(String htmlStr) {

        String regEx_script = "<script[^>]*?>[\\s\\S]*?<\\/script>"; // 定义script的正则表达式  

        String regEx_style = "<style[^>]*?>[\\s\\S]*?<\\/style>"; // 定义style的正则表达式  

        String regEx_html = "<[^>]+>"; // 定义HTML标签的正则表达式

        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

        return htmlStr.trim().replaceAll(" ", ""); // 返回文本字符串

    }

    /**

     * 从HTML获取图片url

     * @param htmlStr

     * @return

     */

    public static List<String> getImgStr(String htmlStr) {

        String img = "";

        Pattern p_image;

        Matcher m_image;

        List<String> pics = new ArrayList<String>();

        String regEx_img = "<img.*src=(.*?)[^>]*?>"; // 图片链接地址

        p_image = Pattern.compile(regEx_img, Pattern.CASE_INSENSITIVE);

        m_image = p_image.matcher(htmlStr);

        while (m_image.find()) {

            img = img + "," + m_image.group();

            Matcher m = Pattern.compile("src=\"?(.*?)(\"|>|\\s+)").matcher(img); // 匹配src

            while (m.find()) {

                pics.add(m.group(1));

            }

        }

        return pics;

    }

}