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Jsoup 解析 html 标签

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import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.junit.Test;

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

public class Test {

    // http://www.runoob.com/java/java-regular-expressions.html
    @Test
    public void testRegex() {
        String input = "【丝路亚心】250gX4<font color=\"red\">核桃仁</font> 原味生<font color=\"red\">核桃核桃仁</font> 新疆特产, <font color=\"red\">123445</font>bcdef";
        String regex = "<font[^>]+?>(.*?)<\\\\/font>";
        Pattern compile = Pattern.compile(regex);
        Matcher matcher = compile.matcher(input);
        List<String> output = new ArrayList<>();
        int count = 0;
        while (matcher.find()) {
            System.out.println("--" + count);
            output.add(matcher.group(count));
            count++;
        }

        System.out.println(output);
    }

    @Test
    public void testHtml() {

        String html = "<span style=\"color:red;border-radius:10px;background-color:blue;\">抢购</span> 我是标题我是标题我是标题<font color=\"red\">高亮</font>我是标题我是标题我是标题我是标题<font color=\"red\">高亮</font>我是标题";

        Document doc = Jsoup.parse(html);
        System.out.println(doc); // 输出带标签的html文档
        System.out.println("\n---->" + doc.text()); // 输出内容
        System.out.println("\n---->" + doc.getElementsByTag("span").get(0).html());
        System.out.println("\n---->" + doc.getElementsByTag("font").get(0).html());

    }

    @Test
    public void testStyle() {
        String style = "position: absolute; width: 500px; height: 552px; color: red; background-color: blue;";
        String width = "width";
        String color = "color";
        String backgroundColor = "background-color";
        System.out.println(getFloat(style, width));
        System.out.println(getString(style, color));
        System.out.println(getString(style, backgroundColor));
    }

    // https://www.cnblogs.com/qlqwjy/p/7531579.html
    public static double getFloat(String value, String property) {
        try {
            if (value.contains(property)) {
                value = value.substring(value.indexOf(property));
                value = value.substring(0, value.contains(";") ? value.indexOf(";") : value.length());
                String attr = value.substring(value.indexOf(":") + 1).trim();
                return Double.parseDouble(attr.substring(0, attr.indexOf("px")));
            }
        } catch (Exception e) {
            // ignore all exception
        }

        return 0;
    }

    public static String getString(String value, String property) {
        try {
            if (value.contains(property)) {
                System.out.println(value);
                value = value.substring(value.indexOf(property));
                value = value.substring(0, value.contains(";") ? value.indexOf(";") : value.length());
                return value.substring(value.indexOf(":") + 1).trim();
            }
        } catch (Exception e) {
            // ignore all exception
        }

        return "";
    }
}