Android: view the local Internet IP address.

[Java]
View plaincopyprint?

1. String getnetip (string ipaddr ){
2. URL infourl = NULL;
3. Inputstream instream = NULL;
4. Try {
5. Infourl = new URL (ipaddr );
6. Urlconnection connection = infourl. openconnection ();
7. Httpurlconnection httpconnection = (httpurlconnection) connection;
8. Int responsecode = httpconnection. getresponsecode ();
9. If (responsecode = httpurlconnection. http_ OK)
10. {
11. Instream = httpconnection. getinputstream ();
12. Bufferedreader reader = new bufferedreader (New inputstreamreader (instream, "UTF-8 "));
13. Stringbuilder strber = new stringbuilder ();
14. String line = NULL;
15. While (line = reader. Readline ())! = NULL)
16. Strber. append (LINE + "\ n ");
17. Instream. Close ();
18. Return strber. tostring ();
19. }
20. } Catch (malformedurlexception e ){
21. // Todo auto-generated Catch Block
    
22. E. printstacktrace ();
23. } Catch (ioexception e ){
24. // Todo auto-generated Catch Block
    
25. E. printstacktrace ();
26. }
27. Return "";
28. }

   String GetNetIp(String ipaddr){        URL infoUrl = null;        InputStream inStream = null;        try {            infoUrl = new URL(ipaddr);            URLConnection connection = infoUrl.openConnection();            HttpURLConnection httpConnection = (HttpURLConnection)connection;            int responseCode = httpConnection.getResponseCode();            if(responseCode == HttpURLConnection.HTTP_OK)              {                     inStream = httpConnection.getInputStream();                  BufferedReader reader = new BufferedReader(new InputStreamReader(inStream,"utf-8"));               StringBuilder strber = new StringBuilder();               String line = null;               while ((line = reader.readLine()) != null)                    strber.append(line + "\n");               inStream.close();               return strber.toString();                          }        } catch (MalformedURLException e) {            // TODO Auto-generated catch block            e.printStackTrace();        } catch (IOException e) {            // TODO Auto-generated catch block            e.printStackTrace();        }       return "";    }    

View system. Out. println (getnetip ("http://fw.qq.com/ipaddress ")));
Add permission <uses-Permission Android: Name = "android. Permission. Internet"> </uses-Permission>

Obtain the Internet IP address from the http://fw.qq.com/ipaddresswebpage.