Lar*_*ars 0 java android html-parsing jsoup
我正在尝试解析一个非常好的DTD html文件,我通过JSOUP的输入流检索,并获取TD字段中的所有数据.我怎么能用JSoup做到这一点？我已经查看了http://jsoup.org/cookbook/但是我应该用som示例来启动它.
先感谢您.
我已经尝试过saxparser,但我不能让DTD工作.
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1- strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="nl" lang="nl">
<TABLE class=personaltable cellSpacing=0 cellPadding=0>
<TBODY>
<TR class=alternativerow>
<TD>Nieuw beltegoed:</TD>
<TD>€ 1,00</TD></TR>
<TR>
<TD>Tegoed vorige periode:
<TD>€ 2,00</TD></TD></TR>
<TR class=alternativerow>
<TD>Tegoed tot 09-11-2011:
<TD>€ 10,00</TD></TD></TR>
<TR>
<TD>
<TD height=25></TD>
<TR class=alternativerow>
<TD>Verbruik sinds nieuw tegoed:</TD>
<TD>€ 0,33</TD></TR>
<TR>
<TD>Ongebruikt tegoed:</TD>
<TD>€ 12,00</TD></TR>
<TR class=alternativerow>
<TD class=f-Orange>Verbruik boven bundel:</TD>
<TD class=f-Orange>€ 0,00</TD></TR>
<TR>
<TD>Verbruik dat niet in de bundel zit*:</TD>
<TD>€ 0,00</TD></TR>
</TBODY>
</TABLE>
</html>
编辑:我关闭了一个力量,我需要在我的AsyncTask中使用JSoup.这是LOgcat:
10-20 21:07:36.679: ERROR/AndroidRuntime(1396): FATAL EXCEPTION: main
10-20 21:07:36.679: ERROR/AndroidRuntime(1396): java.lang.NullPointerException
10-20 21:07:36.679: ERROR/AndroidRuntime(1396): at com.sencide.AndroidLogin$MyTask.onPostExecute(AndroidLogin.java:276)
10-20 21:07:36.679: ERROR/AndroidRuntime(1396): at com.sencide.AndroidLogin$MyTask.onPostExecute(AndroidLogin.java:1)
10-20 21:07:36.679: ERROR/AndroidRuntime(1396): at android.os.AsyncTask.finish(AsyncTask.java:417)
10-20 21:07:36.679: ERROR/AndroidRuntime(1396): at android.os.AsyncTask.access$300(AsyncTask.java:127)
10-20 21:07:36.679: ERROR/AndroidRuntime(1396): at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:429)
10-20 21:07:36.679: ERROR/AndroidRuntime(1396): at android.os.Handler.dispatchMessage(Handler.java:99)
10-20 21:07:36.679: ERROR/AndroidRuntime(1396): at android.os.Looper.loop(Looper.java:130)
10-20 21:07:36.679: ERROR/AndroidRuntime(1396): at android.app.ActivityThread.main(ActivityThread.java:3835)
10-20 21:07:36.679: ERROR/AndroidRuntime(1396): at java.lang.reflect.Method.invokeNative(Native Method)
10-20 21:07:36.679: ERROR/AndroidRuntime(1396): at java.lang.reflect.Method.invoke(Method.java:507)
10-20 21:07:36.679: ERROR/AndroidRuntime(1396): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:847)
10-20 21:07:36.679: ERROR/AndroidRuntime(1396): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:605)
10-20 21:07:36.679: ERROR/AndroidRuntime(1396): at dalvik.system.NativeStart.main(Native Method)
这是AsyncTask代码:
public class MyTask extends AsyncTask<String, Integer, String> {
private Elements tdsFromSecondColumn=null;
}
protected String doInBackground(String... params) {
InputStream inputStreamActivity = response.getEntity().getContent();
BufferedReader reader = new BufferedReader(new InputStreamReader(inputStreamActivity));
StringBuilder sb = new StringBuilder();
String line = null;
while ((line = reader.readLine()) != null) {
sb.append(line + "\n");
}
/******* CLOSE CONNECTION AND STREAM *******/
System.out.println(sb);
inputStreamActivity.close();
String kpn;
kpn = sb.toString();
Document doc = Jsoup.parse(kpn);
Elements tdsFromSecondColumn = doc.select("table.personaltable td:eq(1)");
}
@Override
protected void onPostExecute(String result) {
//publishProgress(false);
TextView tv = (TextView)findViewById(R.id.lbl_top);
for (Element tdFromSecondColumn : tdsFromSecondColumn) {
//System.out.println(tdFromSecondColumn.text());
tv.setText("");
tv.setText(tdFromSecondColumn.text());
}
}
}
那么,你有一个InputStream而不是一个URL？然后你应该使用以下Jsoup#parse()方法InputStream:
Document document = Jsoup.parse(inputStream, charsetName, baseUri);
// ...
本charsetName应该是文档在原始编码的字符集.你可以离开它null让Jsoup决定或退回到UTF-8.本baseUri应该从该HTML最初服务的URL.你可以离开它null,你只能解决相关链接.
但如果您确实拥有原始网址,那么您也可以使用Jsoup#connect():
Document document = Jsoup.connect(url).get();
// ...
无论您如何获得Document,您都可以使用CSS选择器选择文档中感兴趣的元素.另见关于该主题的Jsoup食谱.这是一个示例,它从类的第2列中提取所有数据,<table>类名为personaltable:
Elements tdsFromSecondColumn = document.select("table.personaltable td:eq(1)");
for (Element tdFromSecondColumn : tdsFromSecondColumn) {
System.out.println(tdFromSecondColumn.text());
}
这导致:
€ 1,00
€ 2,00
€ 10,00
€ 0,33
€ 12,00
€ 0,00
€ 0,00