use string variable in place of ip address in url of android?

Question

I want to use string variable in place of ip address in url call. I want to make login with ip address and port number in application. then I want to save this ip address in shared preferences and then in url call i want to use that store ip address in shared preferences

I get the ip address of shared preferences like this.

SharedPreferences pref = getActivity().getSharedPreferences("MyPref", MODE_PRIVATE);


    ip= pref.getString("key_ip", null);           // getting Float

    Log.e("ip: ", "> " + ip);

Then i call the url using method like this.

public static String off33() {
        StringBuffer stringBuffer = new StringBuffer("");
        BufferedReader bufferedReader = null;
        try {
            HttpClient httpClient = new DefaultHttpClient();
            HttpGet httpGet = new HttpGet();

            URI uri = new URI("http://10.1.1.82:80/outlet?3=ON");


            httpGet.setURI(uri);
            httpGet.addHeader(BasicScheme.authenticate(
                    new UsernamePasswordCredentials("admin", "kirti123"),
                    HTTP.UTF_8, false));

            HttpResponse httpResponse = httpClient.execute(httpGet);
            InputStream inputStream = httpResponse.getEntity().getContent();
            bufferedReader = new BufferedReader(new InputStreamReader(
                    inputStream));

            String readLine = bufferedReader.readLine();
            while (readLine != null) {
                stringBuffer.append(readLine);
                stringBuffer.append("\n");
                readLine = bufferedReader.readLine();
            }
        } catch (Exception e) {
            // TODO: handle exception
        } finally {
            if (bufferedReader != null) {
                try {
                    bufferedReader.close();
                } catch (IOException e) {
                    // TODO: handle exception
                }
            }
        }
        return stringBuffer.toString();
    }

so, I want to use ip string in place of url in method 10.1.1.82 means i want to use like this.

            URI uri = new URI("http://ip:80/outlet?3=ON");

ip is a string variable and in this variable i get 10.1.1.82

so how i cant use this?

Scary Wombat · Accepted Answer · 2017-09-05 06:23:57Z

1

Just concatenate the Strings

URI uri = new URI("http://" + ip + ":80/outlet?3=ON");

answered Sep 5, 2017 at 6:23

Scary Wombat

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1 Comment

Devyani Kotadiya Over a year ago

Thnx a lot...!!

nasch · Accepted Answer · 2017-09-05 23:04:44Z

0

You can also do it this way:

String base = "http://%1$s:80/outlet?3=ON";
String address = String.format(base,ip);
URI uri = new URI(address);

answered Sep 5, 2017 at 23:04

nasch

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