About jsoup network connection

jsoup android java network html

This is my code

 
public class MainActivity extends Activity {
@ Override 
protected void onCreate (Bundle savedInstanceState) {
super.onCreate (savedInstanceState); 
setContentView (R.layout.activity_main); 
initControls (); 
} 
private void initControls () {
TextView tv = (TextView) findViewById (R.id.tv); 
String linkText = ""; 
try {
Document doc = Jsoup.connect ("http://210.34.148.183:8080/test/kebiao.htm") get ();. 
Element element = doc.getElementById ("ctl00_ContentPlaceHolder3_ScheduleTable"); 
Elements target = element.getElementsByTag ("td"); 
for (Element link: target) {
linkText + = link.text () + "\ n"; 
} 
} Catch (IOException e) {
e.printStackTrace (); 
} 
tv.setText (linkText); 
} 
} 

activity_main.xml there is only one textview, the code is not an error, but when the phone is running on has not show up. Seeking answers!<-! Main posts under Banner (D4) -><-! Posts under the main text (D5) ->