0

我正在尝试通过 Android / JSOUP 从表中提取以下数据,但是在确定该过程时遇到了一些麻烦。我想我已经接近能够使用下面提供的代码来做到这一点了——但由于某种原因,我仍然无法让我的 textview 显示任何表格数据。

附言

如有必要,可以提供实时 URL。

资源:

public class MainActivity extends Activity {

TextView tv;
final String URL = "http://exampleurl.com";

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    tv = (TextView) findViewById(R.id.TextView01);
    new MyTask().execute(URL);
}

private class MyTask extends AsyncTask<String, Void, String> {
    ProgressDialog prog;
    String title = "";

    @Override
    protected void onPreExecute() {
        prog = new ProgressDialog(MainActivity.this);
        prog.setMessage("Loading....");
        prog.show();
    }

    @Override
    protected String doInBackground(String... params) {
        try {
            Document doc = Jsoup.connect(params[0]).get();
            Element tableElement = doc.getElementsByClass("datagrid")
                    .first();
            title = doc.title();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return title;
    }

    @Override
    protected void onPostExecute(String result) {
        super.onPostExecute(result);
        prog.dismiss();
        tv.setText(result);
    }
}
}

桌子:

<table class="datagrid">
        <tbody><tr>
            <th>Item No.</th>
            <th>Name</th>
            <th>Sex</th>
            <th>Location</th>
        </tr>

            <tr>
                <td><a href="redirector.cfm?ID=a33660a3-aae0-45e3-9703-d59d77717836&amp;page=1&amp;&amp;lname=&amp;fname=" title="501207593">501207593&nbsp;</a></td>
                <td>USER1</td>
                <td>M&nbsp;</td>
                <td>Unknown</td>
            </tr>

            <tr>
                <td><a href="redirector.cfm?ID=edf524da-8598-450f-9373-da87db8d6c84&amp;page=1&amp;&amp;lname=&amp;fname=" title="501302750">501302750&nbsp;</a></td>
                <td>USER2</td>
                <td>M&nbsp;</td>
                <td>Unknown</td>
            </tr>

            <tr>
                <td><a href="redirector.cfm?ID=a78abeea-7651-4ac1-bba2-0dcb272c8b77&amp;page=1&amp;&amp;lname=&amp;fname=" title="531201804">531201804&nbsp;</a></td>
                <td>USER3</td>
                <td>M&nbsp;</td>
                <td>Unknown</td>
            </tr>

    </tbody></table>
4

2 回答 2

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您的表格没有标题。尝试使用 Jsoup 在 TextView 中获取一些文本:

try {
        Document doc = Jsoup.connect(params[0]).get();
        Element tableElement = doc.select(".datagrid");
        Element th = doc.select("tr").first;
        Element firstTh = th.select("th").first();
        title = firstTh.text();
} 
于 2013-10-01T21:46:20.850 回答
0

我认为这条线

Element th = doc.select("tr").first;

相反,它应该写成

Element th = doc.select("tr").first(); 
于 2013-11-07T21:32:24.523 回答