Java Jsoup Android解析

我正在解析一个网页。。。现在当我做完了。。。我知道我在做一些非常愚蠢的事情，所以如果有人能向我指出这一点：）那么正确的方向是什么

我有一个使用Jsoup的Android应用程序，它工作得很好，但速度非常慢！我知道为什么。。。因为基本上在创建时，我有20,30个Jsoup getElement请求

 private class Task extends AsyncTask<Void, Void, Void>{
    String linkText;
    @Override
    protected Void doInBackground(Void... params) {
        Initdata();

        return null;
    }
    @Override
    protected void onPostExecute(Void param) {

        mProgressBarHandler.hide();           

        redraw();
        inflatedView.invalidate();
    }

    @Override
    protected void onPreExecute() {
        super.onPreExecute();
        mProgressBarHandler.show();
    }
}

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知道如何加快速度吗？

在每次调用GetElement时，您都要求重复解析相同的文档！当然慢了

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相反，只需调用一次JSoup就可以获取文档，然后使用它返回的document对象对该文档进行所有查询。

对于初学者，请发布实际使用JSoup的代码。此外，您还需要提供一些它所使用的示例HTML文档。在这里，您只是展示了一个基本的异步任务。@DougStevenson请检查更新的问题。该网页是www.istinomer.rs您的意思是类似于公共文档GetElement（String元素，String站点，int模式）{Elements newshheadlines=null；if（mode==1）{Document doc=Jsoup.connect（site）.timeout（600000）.get（）；return doc；}每次执行

Document doc=Jsoup.connect（site）.timeout（600000）.get（）时，我都会对这个函数返回的文档对象执行查询

它每次都会抓取页面。没有缓存。你应该只做一次，然后为该站点上的所有查询存储文档。我想我明白了。我现在尝试一个快速测试。是的，我知道我在做一些愚蠢的事情，只是不知道是什么。现在大约快了4倍。我能做更多的事情来优化速度吗？

private void Initdata(){

    loadImages();
    players = new String[] {util.GetElement("div.item-2:first-child", "http://www.istinomer.rs/", 0),
            util.GetElement("div.item-2:nth-child(2)", "http://www.istinomer.rs/", 0),
            util.GetElement("div.item-2:nth-child(3)", "http://www.istinomer.rs/", 0),
            util.GetElement("div.item-2:nth-child(4)","http://www.istinomer.rs/",0),
            util.GetElement("div.item-2:nth-child(5)","http://www.istinomer.rs/",0),
            util.GetElement("div.item-2:nth-child(6)","http://www.istinomer.rs/",0),
            util.GetElement("div.item-2:nth-child(7)","http://www.istinomer.rs/",0),
            util.GetElement("div.item-2:nth-child(8)","http://www.istinomer.rs/",0),
            util.GetElement("div.item-2:nth-child(9)","http://www.istinomer.rs/",0),
            util.GetElement("div.item-2:nth-child(10)","http://www.istinomer.rs/",0)
    };
 vestiDescription1 = util.GetElement("div.item-big h2", "http://www.istinomer.rs/", 0) + System.getProperty("line.separator")
            + util.GetElement("div.item-big h3","http://www.istinomer.rs/",0);

    vestiDescription2 = util.GetElement("div.grid-8 h2 a", "http://www.istinomer.rs/", 0) + System.getProperty("line.separator")
            + util.GetElement2("div.grid-8 h3","http://www.istinomer.rs/",0);

    vestiDescription3 = util.GetElement(
            "div.gd-container-1:nth-child(6) > div:nth-child(4) > div:nth-child(1) > div:nth-child(4) > div:nth-child(2) > h3:nth-child(2)", "http://www.istinomer.rs/", 0);

    vestiDescription4 = util.GetElement(
            "div.gd-container-1:nth-child(6) > div:nth-child(4) > div:nth-child(1) > div:nth-child(5) > div:nth-child(2) > h3:nth-child(2)", "http://www.istinomer.rs/", 0);

    vestiDescription5 = util.GetElement(
            "div.gd-container-1:nth-child(6) > div:nth-child(4) > div:nth-child(1) > div:nth-child(6) > div:nth-child(2) > h3:nth-child(2)", "http://www.istinomer.rs/", 0);

    vestiDescription6 = util.GetElement(
            "div.gd-container-1:nth-child(6) > div:nth-child(5) > div:nth-child(1) > div:nth-child(2) > h2:nth-child(4)", "http://www.istinomer.rs/", 0) + System.getProperty("line.separator")
            + util.GetElement2("div.gd-container-1:nth-child(6) > div:nth-child(5) > div:nth-child(1) > div:nth-child(2) > h3:nth-child(5)","http://www.istinomer.rs/",0);

    vestiDescription7 = util.GetElement(
            "div.gd-container-1:nth-child(6) > div:nth-child(5) > div:nth-child(1) > div:nth-child(3) > div:nth-child(2) > h3:nth-child(2)", "http://www.istinomer.rs/", 0);

    vestiDescription8 = util.GetElement(
            "div.gd-container-1:nth-child(6) > div:nth-child(5) > div:nth-child(1) > div:nth-child(4) > div:nth-child(2) > h3:nth-child(2)", "http://www.istinomer.rs/", 0);

    vestiDescription9 = util.GetElement(
            "div.gd-container-1:nth-child(6) > div:nth-child(5) > div:nth-child(1) > div:nth-child(5) > div:nth-child(2) > h3:nth-child(2)", "http://www.istinomer.rs/", 0);

    vestiDescription10 = util.GetElement(
            "div.gd-container-1:nth-child(6) > div:nth-child(5) > div:nth-child(1) > div:nth-child(6) > div:nth-child(2) > h3:nth-child(2)", "http://www.istinomer.rs/", 0);
currency = new String[]{
            vestiDescription1,
            vestiDescription2,
            vestiDescription3,
            vestiDescription4,
            vestiDescription5,
            vestiDescription6,
            vestiDescription7,
            vestiDescription8,
            vestiDescription9,
            vestiDescription10
    };

public String GetElement(String Element, String site, int mode) {
    try {

        Elements newsHeadlines = null;

        if (mode == 0) {
            Document doc = Jsoup.connect(site).timeout(600000).get();
            newsHeadlines = doc.select(Element);
        }
        //1 gets link from class
        else if (mode == 1) {
            Document doc = Jsoup.connect(site).timeout(600000).get();
            String link = doc.select(Element).toString();
            return link;
        }

        //Log.d("TMS", "Data is " + html2text(newsHeadlines.toString()));

        String returnData = html2text(newsHeadlines.toString());
        return returnData;
    }
    catch (Exception e) {
        Log.d("TMS", "EXCEPTION GetElement: " + Element);
        e.printStackTrace();
        return "Error";
    }