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BufferedReader br=new BufferedReader(new InputStreamReader(inputStream, "UTF-8"));
 
StringBuilder sb=new StringBuilder();
 
char[] buffer = new char[8192];
int len;
 
while ((len = br.read(buffer)!= -1) {
  sb.append(buffer, 0, len);
}
 
String content = sb.toString();

Note: Don’t forget on right charset, see second parameter in InputStreamReader constructor.

start cmd
change directory to android-sdk/tools
and
fire this command

emulator.exe -avd [your avd name] -dns-server 192.168.1.1

thats it.

run your app…

hope this will help you


JSONObject jsonResponse = new JSONObject(convertStreamToString(instream));


You may find this somehow unrelated to your efforts towards accessing http resources from Android but I will appreciate it if you can provide me with your thoughts regarding to my challenge.

I’m trying to capture some statistics like number of 302′s and 200 Oks or the time it takes for the client to receive the content from the streamer (time it takes from the actual request (URL) to the http client till http client sends the content back to the media player). The cleanest way to do this is to extend HttpClient code. The challenge for me is to know that if the media player (any kind) on Android will use my extended version of HttpClient or not. I will appreciate it if you can help me at least based on your experience what you think about this.

Cheers, STZ

INFO/System.out(278): Excpetion = java.net.UnknownHostException: oxavi.com

It seems it’s the same problem described by Bipin Vayalu but I can’t see any reply on this.
I added to my AndroidManifest file the user permission:

android:name= »android.permission.INTERNET »

but it didn’t solve the problem.
I tryed both on my HW(HTC WildFire android 2.2.1) and on the AVDs with no results.
Do I miss some important configuration for the internet access ?

Do you think it is possible to handle the http connection directly into the event handler or I need to create a separate thread ?

=============== This is the code =====================
final Button buttonSearch = (Button) findViewById(R.id.search);
buttonSearch.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event)
{
if(event.getAction() == android.view.MotionEvent.ACTION_DOWN){
try {
System.out.println(« \n\n BUTTON PUSHED\n\n »);
InputStream content = null;
HttpGet httpGet = new HttpGet(« http://oxavi.com/price.php »);
HttpClient httpclient = new DefaultHttpClient();
// Execute HTTP Get Request
HttpResponse response = httpclient.execute(httpGet);
content = response.getEntity().getContent();
BufferedReader rd = new BufferedReader(new InputStreamReader(content), 4096);
String line;
StringBuilder sb = new StringBuilder();
while ((line = rd.readLine()) != null)
{ sb.append(line);}
rd.close();
String contentOfMyInputStream = sb.toString();
System.out.println(contentOfMyInputStream);

} catch (Exception e){
System.out.println(« Excpetion =  » + e);}
}
return true;
}
});
===================================================
Many thanks in advance.
Andrea

Any help would be greatly appreciated.
Here is my current code.

.setNeutralButton(« Buy stock », new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {

HttpClient httpclient = new DefaultHttpClient();
HttpGet httpget = new HttpGet(« http://www.nasdaq.com/ »);
HttpResponse response = null;
try {
response = httpclient.execute(httpget);
} catch (ClientProtocolException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
HttpEntity entity = response.getEntity();
if (entity != null) {
InputStream instream = null;
try {
instream = entity.getContent();
} catch (IllegalStateException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
int l;
byte[] tmp = new byte[2048];
try {
while ((l = instream.read(tmp)) != -1) {
}
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}

}
})

response.getEntity().getContent(); (this will return you InputStream to parse)

instead of just

response.getEntity()

I am new to android development can you show how the request and response works in android using any small example(if 1 text field requesting something and taking response when clicked on to button).
can you help me on this. Webservice is new to me…

This is a very useful article for beginner like me.

Thanks

But sometime i got the IOException when call goes to execute method of HttpGet/HttpPost.

i think this url problem but when i paste same url into web browser it gives me response.

i don’t know why this is done.

Please, can you provide me the appropriate answer?

Thanks in advance.

I have an GET(see code below) Method here(Getting the right result: HTTP status + xml).
However when trying with an POST Method i only get the HTTP status, but the xml file are not displayed at the screen.

Can you help me figure out what am I doing wrong on the POST part.

Notice! I have two service one that requires GET and the other POST
// This is the GET method part
private DefaultHttpClient httpClient = new DefaultHttpClient();
private int responseCode;

@Override

public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);

TextView tv1 = (TextView)findViewById(R.id.text1);
TextView tv3 = (TextView)findViewById(R.id.text3);

try {

HttpGet httpGet = new HttpGet (« http://myURL »);

httpGet.setHeader(« Host », « myhost »);
httpGet.setHeader(« Authorization », « username:password »);
httpGet.setHeader(« Content-Type », »Content-Type: application/xml; charset=utf-8″);

HttpResponse httpResponse = httpClient.execute(httpGet);
responseCode = httpResponse.getStatusLine().getStatusCode();

if(responseCode == 200){
HttpEntity entity = httpResponse.getEntity();
String xml = EntityUtils.toString(entity);
httpResponse = httpClient.execute(httpGet);

httpResponse.getEntity();
tv3.setText(xml.toString());
String reden = httpResponse.getStatusLine().getReasonPhrase();
tv1.setText(« \n\nHTTP Statuscode :  » + responseCode+ » « +reden);
}else{

String reden = httpResponse.getStatusLine().getReasonPhrase();
throw new RuntimeException(« Problem reading status (code= »+responseCode + »): »+reden);

}

} catch (ClientProtocolException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();

}

}
}

//Post part

private DefaultHttpClient httpClient = new DefaultHttpClient();
private int responseCode;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);

TextView tv1 = (TextView)findViewById(R.id.text1);
TextView tv2 = (TextView)findViewById(R.id.text2);
TextView tv3 = (TextView)findViewById(R.id.text3);

try {
HttpPost httpPost = new HttpPost(« http://myURL »);
httpPost.addHeader(« Host », »myhost.com »);
httpPost.addHeader(« Authorization »,  » username:password »);
httpPost.addHeader(« Content-Type », »application/xml; charset=utf-8″);
HttpResponse httpResponse = httpClient.execute(httpPost);
responseCode = httpResponse.getStatusLine().getStatusCode();

if(responseCode == 200){
HttpEntity entity = httpResponse.getEntity();
String xml = EntityUtils.toString(entity);
httpResponse = httpClient.execute(httpPost);

httpResponse.getEntity();
tv3.setText(xml.toString());
String reason = httpResponse.getStatusLine().getReasonPhrase();
tv1.setText(« \n\nHTTP Statuscode :  » + responseCode+  » « +reason);
}else{

String reason = httpResponse.getStatusLine().getReasonPhrase();
tv2.setText(« \n\nHTTP Statuscode :  » + responseCode+ » « +reason);
throw new RuntimeException(« Problemen bij het lezen van het status (code= »+responseCode + »): »+reason);

}

InputStream in = httpResponse.getEntity().getContent();
//BufferedReader reader = new BufferedReader(new InputStreamReader(in));
StringBuilder str = new StringBuilder();
String line = null;

}catch (IOException e){
//
} catch (Exception e1) {
//

}
}}

Thanks in advance

i’ve take a look the link that you give to me, it seems that whatever the certificate it will always validate it « true ». is that really safe to do it? is there another ways to validate the certificate? thanks for your help, i really apreciate that

you can have a look at the class there :
https://github.com/anthonydahanne/ReGalAndroid/blob/master/g2-java-client/src/main/java/net/dahanne/gallery/g2/java/client/business/G2Client.java

Thanks for answering some comments

@Rui, you can add the XML to the parameter.
i.e
nameValuePairs.add(new BasicNameValuePair(, myXML));
httpPost.setEntity(new UrlEncodedFormEntity(nameValuePairs));

make sure you convert the XML to a String myXML.. hope this usefull

@Anthoni
can you give me sample code, or explanation about HTTPS with Android??
it seems

HttpClient httpclient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(url);
List nameValuePairs = new ArrayList(1);
//this is where you add your data to the post method
nameValuePairs.add(new BasicNameValuePair(
« name », « anthony »));
httpPost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
// Execute HTTP Post Request
HttpResponse response = httpclient.execute(httpPost);
content = response.getEntity().getContent();

it can only work with HTTP, i dont know how to get it work on HTTPS, for note i’m using GLASSFISH default key for HTTPS (https:localhost/MyWeb:8181)

thx before

Nice tutorial … I am having a problem though … I am usind http post to login to a website. I am sending username and password as key value pairs. But i am getting an empty response. I cant figure out the problem. Can you please help me out?