java 如何获取网页的动态内容，并解析网页内容

（笔记）

获取网页的动态内容参考

https://stackoverflow.com/questions/42446990/parse-html-table-to-json-using-jsoup-in-java

maven：

<!--将html转换为Map-->
<dependency>
   <groupId>org.jsoup</groupId>
   <artifactId>jsoup</artifactId>
   <version>1.10.3</version>
</dependency>

实现:

public String TableToJson(String url) throws JSONException {   
     Document doc = Jsoup.connect(url).get();
        JSONObject jsonParentObject = new JSONObject();
        //JSONArray list = new JSONArray();
        for (Element table : doc.select("table")) {
            for (Element row : table.select("tr")) {
                JSONObject jsonObject = new JSONObject();
                Elements tds = row.select("td");
                String Name = tds.get(0).text();
                String Group = tds.get(1).text();
                String Code = tds.get(2).text();
                String Lesson = tds.get(3).text();
                String Day1 = tds.get(4).text();
                String Day2 = tds.get(5).text();
                String Day3= tds.get(6).text();        
                jsonObject.put("Group", Group);
                jsonObject.put("Code", Code);
                jsonObject.put("Lesson", Lesson);
                jsonObject.put("Day1", Day1);
                jsonObject.put("Day2", Day2);
                jsonObject.put("Day3", Day3);
                jsonParentObject.put(Name,jsonObject);
             }
        }
    return jsonParentObject.toString();
}