java.net.UnknownHostException in android

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java.net.UnknownHostException error in android
how can i solve this problem.

Posted 3-May-15 18:49pm

Member 11420908

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Sergey Alexandrovich Kryukov 4-May-15 1:15am

Not enough information.
—SA

Member 11420908 4-May-15 1:21am

This is my code.
TextView textv = (TextView)findViewById(R.id.txt1);
// webView=(WebView)findViewById(R.id.webView);
// webView.loadUrl("http://kredo.no-ip.org/SSMA/api/DevicesAPI/GetDevices");
textv.setText("Text Has Been Changed");
BufferedReader in = null;
String data = null;
try{
HttpClient httpclient = new DefaultHttpClient();

HttpGet request = new HttpGet();
URI website = new URI("http://kredo.no-ip.org/SSMA/api/DevicesAPI/GetDevices");
request.setURI(website);
HttpResponse response = httpclient.execute(request);
in = new BufferedReader(new InputStreamReader(
response.getEntity().getContent()));

// NEW CODE
String line = in.readLine();
textv.append(" First line: " + line);
// END OF NEW CODE

textv.append(" Connected ");
}catch(Exception e){
Log.e("log_tag", "Error in http connection " + e.toString());
}

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Sergey Alexandrovich Kryukov · Answer 1 · 2015-05-03T19:16:00

Solution 1

Not enough information, but… you cannot just "fix" it. You are doing something with the host address/name which does not actually exist. It could be host name not prescribed in DNS, something like that.

—SA

Posted 3-May-15 19:16pm

Sergey Alexandrovich Kryukov

Comments

Member 11420908 4-May-15 1:30am

hi i just trying to show details from url in a textview by sollwing method.
whenever i run the code it throw a exception "java.net.UnknownHostException"

the code is:
class Apical extends AsyncTask
{
@Override
protected Object doInBackground(Object[] params) {

TextView textv = (TextView)findViewById(R.id.txt1);
textv.setText("Text Has Been Changed");
BufferedReader in = null;
String data = null;
try{
HttpClient httpclient = new DefaultHttpClient();

HttpGet request = new HttpGet();
URI website = new URI("http://kredo.no-ip.org/SSMA/api/DevicesAPI/GetDevices");
request.setURI(website);
HttpResponse response = httpclient.execute(request);
in = new BufferedReader(new InputStreamReader(
response.getEntity().getContent()));

// NEW CODE
String line = in.readLine();
textv.append(" First line: " + line);
// END OF NEW CODE

textv.append(" Connected ");
}catch(Exception e){
Log.e("log_tag", "Error in http connection " + e.toString());
}

return null;
}
}

Sergey Alexandrovich Kryukov 4-May-15 1:55am

In what line?
—SA

Member 11420908 4-May-15 2:18am

Hi
i have test the all code with break point it't throw any exception during debug but when i run the code it shows java.net.unknownexception