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我从Android Studio中的本地HTML页面上抓取数据，而不是显示正确的信息所有它显示的是空白屏幕。任何人都知道如何显示我刮过的数据？下面是一段主要的代码。正确的数据不显示为我的应用程序Android
public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
try {
StringBuilder buf=new StringBuilder();
InputStreamReader inputStream = new InputStreamReader(getAssets().open("filename.html"));
BufferedReader bufferedReader = new BufferedReader(inputStream);
String str;
while ((str=bufferedReader.readLine()) != null) {
buf.append(str);
}
Document doc = Jsoup.parse(buf.toString());
StringBuilder sb = new StringBuilder();
Elements tableElements = doc.select("td[colspan='1']");
TextView textView = (TextView)findViewById(R.id.text_view);
for (Element td : tableElements) {
sb.append(td.text() + "\n");
System.out.println(td.text());
}
textView.setText(sb.toString());
} catch (IOException e) {
e.printStackTrace();
}
}
} HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns='http://www.w3.org/1999/xhtml'>
<head><title>timetable.html</title><meta http-equiv='content-disposition', content='attachment;filename=timetable.html'>
<meta http-equiv="Content-Type" content="application/octet-stream" />
<style>body {background-color:white;} body,td { font-family: arial; } </style></head>
<data>
<body>
<table cellspacing='0' border='0' width='100%' >
<col align='left' /><col align='center' /><col align='right' />
</data>
<tr>
<td></td><td></td><td></td>
</tr>
</table>
</td>
</tr><tr>
<td>
<table cellspacing='0' border='0' width='100%' >
<col align='left' /><col align='center' /><col align='right' />
<tr>
<td></td><td></td><td></td>
</tr>
</table>
</td>
</tr><tr>
<td>
<table cellspacing='0' border='0' width='100%' >
<col align='left' /><col align='center' /><col align='right' />
<tr>
<td></td><td></td><td></td>
</tr>
</table>
</td>
</tr><tr>
<td>
<table cellspacing='0' border='0' width='100%' >
<col align='left' /><col align='center' /><col align='right' />
<tr>
<td><table border='0' width='100%'><tr><td width='40%' align='left' valign='middle'><font face='arial' size='3'><b>The Year<font size='1'> </td><td width='20%' align='center' valign='middle'><font face='arial' size='1'>ICOM</td> <td width='40%' align='right' valign='middle'><font face='arial' size='2'> <b>Weeks selected for output: 26 (22 Feb 2016-28 Feb 2016)</td></td><td></td> <td></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing='0' border='1'>
<tr>
<td></td>
<td bgcolor='#C0C0C0' colspan='1'><font color='#FFFFFF'>9:00</font> </td>
<td bgcolor='#C0C0C0' colspan='1'><font color='#FFFFFF'>9:15</font></td>
<td bgcolor='#C0C0C0' colspan='1'><font color='#FFFFFF'>9:30</font></td>
<td bgcolor='#C0C0C0' colspan='1'><font color='#FFFFFF'>9:45</font></td>
<td bgcolor='#C0C0C0' colspan='1'><font color='#FFFFFF'>10:00</font></td>
<td bgcolor='#C0C0C0' colspan='1'><font color='#FFFFFF'>10:15</font></td>
<td bgcolor='#C0C0C0' colspan='1'><font color='#FFFFFF'>10:30</font></td>
<td bgcolor='#C0C0C0' colspan='1'><font color='#FFFFFF'>10:45</font></td>
<td bgcolor='#C0C0C0' colspan='1'><font color='#FFFFFF'>11:00</font></td>
<td bgcolor='#C0C0C0' colspan='1'><font color='#FFFFFF'>11:15</font></td>
<td bgcolor='#C0C0C0' colspan='1'><font color='#FFFFFF'>11:30</font></td>
<td bgcolor='#C0C0C0' colspan='1'><font color='#FFFFFF'>11:45</font></td>
<td bgcolor='#C0C0C0' colspan='1'><font color='#FFFFFF'>12:00</font></td>
<td bgcolor='#C0C0C0' colspan='1'><font color='#FFFFFF'>12:15</font></td>
<td bgcolor='#C0C0C0' colspan='1'><font color='#FFFFFF'>12:30</font></td>
<td bgcolor='#C0C0C0' colspan='1'><font color='#FFFFFF'>12:45</font></td>
<td bgcolor='#C0C0C0' colspan='1'><font color='#FFFFFF'>13:00</font></td>
<td bgcolor='#C0C0C0' colspan='1'><font color='#FFFFFF'>13:15</font></td>
<td bgcolor='#C0C0C0' colspan='1'><font color='#FFFFFF'>13:30</font></td>
<td bgcolor='#C0C0C0' colspan='1'><font color='#FFFFFF'>13:45</font></td>
<td bgcolor='#C0C0C0' colspan='1'><font color='#FFFFFF'>14:00</font></td>
<td bgcolor='#C0C0C0' colspan='1'><font color='#FFFFFF'>14:15</font></td>
<td bgcolor='#C0C0C0' colspan='1'><font color='#FFFFFF'>14:30</font></td>
<td bgcolor='#C0C0C0' colspan='1'><font color='#FFFFFF'>14:45</font></td>
<td bgcolor='#C0C0C0' colspan='1'><font color='#FFFFFF'>15:00</font></td>
<td bgcolor='#C0C0C0' colspan='1'><font color='#FFFFFF'>15:15</font></td>
<td bgcolor='#C0C0C0' colspan='1'><font color='#FFFFFF'>15:30</font></td>
<td bgcolor='#C0C0C0' colspan='1'><font color='#FFFFFF'>15:45</font></td>
<td bgcolor='#C0C0C0' colspan='1'><font color='#FFFFFF'>16:00</font></td>
<td bgcolor='#C0C0C0' colspan='1'><font color='#FFFFFF'>16:15</font></td>
<td bgcolor='#C0C0C0' colspan='1'><font color='#FFFFFF'>16:30</font></td>
<td bgcolor='#C0C0C0' colspan='1'><font color='#FFFFFF'>16:45</font></td>
</tr>
<tr >
<td style="border-bottom:3px solid #000000;" rowspan='1' bgcolor='#C0C0C0'><font color='#FFFFFF'>Monday</font></td>
<td style="border-bottom:3px solid #000000;" colspan='12' rowspan='1' >
<table cellspacing='0' border='0' width='100%'>
<col align='left' />
<tr>
<td align='left'><font color='#FF0000'>Sound</font></td>
</tr>
</table>
<table cellspacing='0' border='0' width='100%'>
<col align='left' />
<col align='right' />
<tr>
<td align='left'><font color='#000000'>P2016</font></td>
<td align='right'><font color='#008000'>P.Man</font></td>
</tr>
</table>
<table cellspacing='0' border='0' width='100%'>
<col align='left' />
<tr>
<td align='left'><font color='#000080'>22-29, 32-36</font></td>
</tr>
</table>
</td>
<td style="border-bottom:3px solid #000000;" > </td>
<td style="border-bottom:3px solid #000000;" > </td>
<td style="border-bottom:3px solid #000000;" > </td>
<td style="border-bottom:3px solid #000000;" > </td>
<td style="border-bottom:3px solid #000000;" colspan='4' rowspan='1' >
<table cellspacing='0' border='0' width='100%'>
<col align='left' />
<tr>
<td align='left'><font color='#FF0000'>Ship</font></td>
</tr>
</table>
<table cellspacing='0' border='0' width='100%'>
<col align='left' />
<col align='right' />
<tr>
<td align='left'><font color='#000000'>P2015</font></td>
<td align='right'><font color='#008000'>K.Loin</font></td>
</tr>
</table>
<table cellspacing='0' border='0' width='100%'>
<col align='left' />
<tr>
<td align='left'><font color='#000080'>22-29, 32-36</font></td>
</tr>
</table>
</td>
<td style="border-bottom:3px solid #000000;" colspan='12' rowspan='1' >
<table cellspacing='0' border='0' width='100%'>
<col align='left' />
<tr>
<td align='left'><font color='#FF0000'>Mobility</font></td>
</tr>
</table>
<table cellspacing='0' border='0' width='100%'>
<col align='left' />
<col align='right' />
<tr>
<td align='left'><font color='#000000'>P2222</font></td>
<td align='right'><font color='#008000'>D.Met</font></td>
</tr>
</table>
<table cellspacing='0' border='0' width='100%'>
<col align='left' />
<tr>
<td align='left'><font color='#000080'>22-29, 32-36</font></td>
</tr>
</table>
</td>
</tr>
它的时间表，这只是monday.the休息太长，但它仍然像上周一做我想要显示像9:00和时代9：15，周一，声音，P2016，P.Man，船舶，K.Lion，P2015
您是否在控制台中获得正确的输出？如果您只是设置了一些文本，TextView是否可见？ – BadCash
你能分享一些日志吗？比如当你打印buf.toString（）时你会得到什么，以及你在文档中有什么？ –