使用 JSoup 获取被点击按钮 javascript 隐藏的 table 的内容

Question

我正在创建一个网络抓取供个人在游戏中使用。这是我要抓取的网站：http://forum.toribash.com/clan_war.php?clanid=139

而且我想计算名字出现在 "shows detail" 上的频率。

我读过这个Get content from javascript onClick hyperlink without knowing that if this actually what i am searching for. I have a doubt that this is not what i am searching for, but regardless i have not try the answer of that questions since i have no idea on how to make this 符合我的要求。

        BufferedReader month = new BufferedReader(new InputStreamReader(System.in));
        String mth = month.readLine();
        //Accessing the website
        Document docs = Jsoup.connect("http://forum.toribash.com/clan_war.php?clanid=139").get();

        //Taking every entry of war history
        Elements collection = docs.getElementsByClass("war_history_entry");
        //Itterate every collection
        for(Element e : collection){
            //if the info is on the exact month that are being searched we will use the e
            if(e.getElementsByClass("war_info").text().split(" ")[1].equalsIgnoreCase(mth)){
                //supposedly it holds every element that has player as it class inside of the button onclick
                //But it doesn't work
                Elements cek = e.getElementsByClass("player");
                for(Element c : cek){
                    System.out.println(c.text());
                }
            }

现在我希望至少能在节目详情中得到名字table

Kaito
Chax
Draku

等等

Answer 1

此页面不包含您要抓取的信息。单击按钮后，结果由 AJAX (Javascript) 加载。您可以使用 Web 浏览器的调试器查看“网络”选项卡，了解单击该按钮时发生的情况。单击按钮

<button id="buttonwarid19557"  ... >

从 URL:

加载 table

http://forum.toribash.com/clan_war_ajax.php?warid=19557&clanid=139

注意相同的 ID 号。

你要做的是从每个按钮中获取id，然后为每个按钮获取另一个文档并逐一解析。无论如何，这就是您的网络浏览器所做的。

        BufferedReader month = new BufferedReader(new InputStreamReader(System.in));
        String mth = month.readLine();
        //Accessing the website
        Document docs = Jsoup.connect("http://forum.toribash.com/clan_war.php?clanid=139").get();

        //Taking every entry of war history
        Elements collection = docs.getElementsByClass("war_history_entry");
        //Itterate every collection
        for(Element e : collection){
            //if the info is on the exact month that are being searched we will use the e
            if(e.getElementsByClass("war_info").text().split(" ")[1].equalsIgnoreCase(mth)){
                // selecting button
                Element button = e.selectFirst("button");
                // getting warid from button id
                String buttonId = button.attr("id");
                // removing text because we need only number
                String warId = buttonId.replace("buttonwarid", "");

                System.out.println("downloading results for " + e.getElementsByClass("war_info").text());
                // downloading and parsing subpage containing table with info about single war
                // adding referrer to make the request look more like it comes from the real web browser to avoid possible hotlinking protection
                Document table = Jsoup.connect("http://forum.toribash.com/clan_war_ajax.php?warid=" + warId + "&clanid=139").referrer("http://forum.toribash.com/clan_war.php?clanid=139").get();
                // get every <td class="player"> ... </td>
                Elements players = table.select(".player");
                for(Element player : players){
                    System.out.println(player.text());
                }
            }
        }

使用 JSoup 获取被点击按钮 javascript 隐藏的 table 的内容

Getting the content of a table that being hidden by an onclick button javascript using JSoup

javascript

java

jsoup