Develop Reference

HTTP Get Request in Android json

Hi, i don't undestand why this doesn't work, i am trying to retrieve whatever comes after "offer" in the specified url and then display it but when i click on the Offer button on android screen nothing happens. Please help if you could. I have the internet permission in manifest.
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import org.json.JSONArray;
import org.json.JSONObject;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.ProgressDialog;
import android.os.AsyncTask;
import android.os.Bundle;
import android.view.View;
import android.widget.ListView;
public class LoggedIn extends Activity {
AlertDialog alertDialogStores;
ObjectItem[] ObjectItemData = new ObjectItem[5];
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.logged_in);
// a button to show the pop up with a list view
View.OnClickListener handler = new View.OnClickListener(){
public void onClick(View v) {
switch (v.getId()) {
case R.id.buttonShowPopUp:
LoaderTask task = new LoaderTask();
task.execute();
break;
}
}
};
findViewById(R.id.buttonShowPopUp).setOnClickListener(handler);
}
class LoaderTask extends AsyncTask<Void , Void ,String>{
ProgressDialog progressDialog ;
public LoaderTask(){
progressDialog = new ProgressDialog(SplashActivity.this);
progressDialog.setIndeterminate(false);
progressDialog.setCancelable(false);
progressDialog.setMessage("Loading app data...");
}
#Override
protected void onPreExecute() {
super.onPreExecute();
progressDialog.show();
}
#Override
protected String doInBackground(Void... params) {
return connect("http://ec2-54-175-18-179.compute-1.amazonaws.com/customers/37.json");
}
#Override
protected void onPostExecute(String result) {
super.onPostExecute(result);
progressDialog.dismiss();
showPopUp(result);
}
}
private String convertStreamToString(InputStream is) {
BufferedReader reader = new BufferedReader(new InputStreamReader(is));
StringBuilder sb = new StringBuilder();
String line = null;
try {
while ((line = reader.readLine()) != null) {
sb.append(line + "\n");
}
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
is.close();
} catch (IOException e) {
e.printStackTrace();
}
}
return sb.toString();
}
public String connect(String url)
{
HttpClient httpclient = new DefaultHttpClient();
HttpGet httpget = new HttpGet(url);
HttpResponse response;
try {
response = httpclient.execute(httpget);
//Log.i(TAG,response.getStatusLine().toString());
HttpEntity entity = response.getEntity();
if (entity != null) {
InputStream instream = entity.getContent();
String result= convertStreamToString(instream);
instream.close();
return result;
}
} catch (ClientProtocolException e) {
} catch (IOException e) {
}
return null;
}
public void showPopUp(String result){
try{
JSONArray jsonArray = new JSONArray(result);
for(int i = 0 ; i <= 5 ; i++){
JSONObject o = jsonArray.getJSONObject(i);
String http_response = o.getString("offer");
System.out.println("test "+http_response);
//ObjectItemData[i] = new ObjectItem(o);
ObjectItemData[0] = new ObjectItem(http_response);
ObjectItemData[1] = new ObjectItem(http_response);
ObjectItemData[2] = new ObjectItem(http_response);
ObjectItemData[3] = new ObjectItem(http_response);
ObjectItemData[4] = new ObjectItem(http_response);
// adapter instance
ArrayAdapterItem adapter = new ArrayAdapterItem(this, R.layout.list_view_row_item, ObjectItemData);
// create a new ListView, set the adapter and item click listener
ListView listViewItems = new ListView(this);
listViewItems.setAdapter(adapter);
listViewItems.setOnItemClickListener(new OnItemClickListenerListViewItem());
// put the ListView in the pop up
alertDialogStores = new AlertDialog.Builder(LoggedIn.this)
.setView(listViewItems)
.setTitle("Offers")
.show();
}
} catch(Exception e){e.printStackTrace();}
finally{System.out.println("Success");
}
}
}

class LoaderTask extends AsyncTask<Void , Void ,String>{
ProgressDialog progressDialog ;
public LoaderTask(){
progressDialog = new ProgressDialog(SplashActivity.this);
progressDialog.setIndeterminate(false);
progressDialog.setCancelable(false);
progressDialog.setMessage("Loading app data...");
}
#Override
protected void onPreExecute() {
super.onPreExecute();
progressDialog.show();
}
#Override
protected String doInBackground(Void... params) {
return connect("http://ec2-54-175-18-179.compute-1.amazonaws.com/customers/37.json");
}
#Override
protected void onPostExecute(String result) {
super.onPostExecute(result);
progressDialog.dismiss();
showPopUp(result);
}
}
private String convertStreamToString(InputStream is) {
BufferedReader reader = new BufferedReader(new InputStreamReader(is));
StringBuilder sb = new StringBuilder();
String line = null;
try {
while ((line = reader.readLine()) != null) {
sb.append(line + "\n");
}
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
is.close();
} catch (IOException e) {
e.printStackTrace();
}
}
return sb.toString();
}
public String connect(String url)
{
HttpClient httpclient = new DefaultHttpClient();
HttpGet httpget = new HttpGet(url);
HttpResponse response;
try {
response = httpclient.execute(httpget);
//Log.i(TAG,response.getStatusLine().toString());
HttpEntity entity = response.getEntity();
if (entity != null) {
InputStream instream = entity.getContent();
String result= convertStreamToString(instream);
instream.close();
return result;
}
} catch (ClientProtocolException e) {
} catch (IOException e) {
}
return null;
}
public void showPopUp(String result){
try{
JSONArray jsonArray = new JSONArray(result);
for(int i = 0 ; i < jsonArray.length() ; i++){
JSONObject o = jsonArray.getJSONObject(i);
String http_response = o.getString("offer");
System.out.println("test "+http_response);
ObjectItemData[i] = new ObjectItem(http_response);
}
//and populate your listview here
} catch(Exception e){e.printStackTrace();}
finally{System.out.println("Success");
}
}
and call this to do task
new LoaderTask().execute();

Send http post from android

I have a server made in python that reads the querystring-message and stores it in a sqlite database, and then displays the content.
Now I want to send the message from a android application. This is my code so far.
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.UnsupportedEncodingException;
import java.net.URL;
import java.net.URLConnection;
import java.net.URLEncoder;
import android.R.string;
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
public class MainActivity extends Activity {
Button send;
TextView display;
String message;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
send = (Button)findViewById(R.id.button1);
display = (TextView)findViewById(R.id.editText1);
send.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
try{
post();
}
catch(Exception e)
{
display.setText("Det sket sig");
}
}
public void post() throws UnsupportedEncodingException
{
message = display.getText().toString();
String data = URLEncoder.encode("?message", "UTF-8")
+ "=" + URLEncoder.encode(message, "UTF-8");
String text = "";
BufferedReader reader=null;
try
{
URL url = new URL("http:homepage.net");
URLConnection conn = url.openConnection();
conn.setDoOutput(true);
OutputStreamWriter wr = new OutputStreamWriter(conn.getOutputStream());
wr.write(data);
wr.flush();
reader = new BufferedReader(new InputStreamReader(conn.getInputStream()));
StringBuilder sb = new StringBuilder();
String line = null;
while((line = reader.readLine()) != null)
{
sb.append(line + "\n");
}
text = sb.toString();
}
catch(Exception e)
{
}
finally
{
try
{
reader.close();
}
catch(Exception ex) {}
}
display.setText(text);
}
});
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
}
This is not functioning as per the expectations. What am i doing wrong here?

for network related operation you have to use asynctask or thread other wise you wil get NetworkOnMainThread Exception.
refer here
private class MyTask extends AsyncTask<Void, Void, Void> { ... }

Use following AsyncTask to make server request:
public class RestServiceTask extends AsyncTask<String, Void, String> {
private String errorMessage;
public RestServiceTask() {
}
#Override
protected void onPreExecute() {
super.onPreExecute();
}
#Override
protected String doInBackground(String... params) {
String url = params[1];
String method = params[2];
HttpParams httpParameters = new BasicHttpParams();
HttpConnectionParams.setConnectionTimeout(httpParameters, 60000);
HttpConnectionParams.setSoTimeout(httpParameters, 60000);
HttpClient client = new DefaultHttpClient(httpParameters);
HttpUriRequest request;
try {
if (method.equals("get")) {
request = new HttpGet(url);
} else {
request = new HttpPost(url);
if (params.length > 0 && params[0] != null) {
StringEntity entity = new StringEntity(params[0]);
((HttpPost) request).setEntity(entity);
Crashlytics.log(Log.INFO, "Request", params[0]);
}
((HttpPost) request).setHeader("Content-Type",
"application/json");
}
HttpResponse response = client.execute(request);
HttpEntity entity = response.getEntity();
String json = convertStreamToString(entity.getContent());
Crashlytics.log(Log.INFO, "Response", json);
return json;
} catch (Exception e) {
}
return null;
}
#Override
protected void onPostExecute(String result) {
super.onPostExecute(result);
//process your result
}
public String convertStreamToString(InputStream is) throws IOException {
if (is != null) {
Writer writer = new StringWriter();
char[] buffer = new char[1024];
try {
Reader reader = new BufferedReader(new InputStreamReader(is,
"UTF-8"));
int n;
while ((n = reader.read(buffer)) != -1) {
writer.write(buffer, 0, n);
}
} finally {
is.close();
}
return writer.toString();
} else {
return "";
}
}
}
Use it by:
new RestServiceTask().execute("<json string>",url,method);//method can be get,post

try this simple example if you have any doubt follow this links:
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost("http://www.codeincloud.tk/First.php");
try {
HttpResponse response = httpclient.execute(httppost);
final String str = EntityUtils.toString(response.getEntity());
TextView tv = (TextView) findViewById(R.id.textView1);
tv.setText(str);
}
catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
http://codeoncloud.blogspot.in/2012/07/android-php-web-service-client.html,http://sampleprogramz.com/android/singlewebservicecall.php

You should change the title of your question, there is no such thing as queryString in a POST. Query String parameters only gets added in a GET, and in POST you pass data in the body of the request.
Also, you could use this in combination with AsyncTask to solve your problem
EDIT: Also, Check here for more about GET and POST

Try this :
HttpParams params = new BasicHttpParams();
params.setParameter(CoreProtocolPNames.PROTOCOL_VERSION, HttpVersion.HTTP_1_1);
HttpClient httpClient = new DefaultHttpClient(params);
HttpPost httpPost = new HttpPost(your website);
List<NameValuePair> entityParams = new ArrayList<NameValuePair>();
entityParams.add(new BasicNameValuePair("action", "postcomment"));
entityParams.add(new BasicNameValuePair("app_id", com.appbuilder.sdk.android.Statics.appId));
entityParams.add(new BasicNameValuePair("message", message1));
entityParams.add(new BasicNameValuePair("message2", message2));
httpPost.setEntity(new UrlEncodedFormEntity(entityParams, "utf-8"));
String resp = httpClient.execute(httpPost, new BasicResponseHandler());

JAVA ANDROID:Reading Php Json values, Eclipse dont see the error but it doesnt work

Reading Php Json values, Eclipse dont see the error but it doesnt work. Im becoming crazy because it must run, can you help me?
When i execute it nothing happens.
This is the java activity code:
package com.json.php;
import android.app.Activity;
import android.os.Bundle;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import android.widget.TextView;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
public class JSONExampleActivity extends Activity {
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost("http://iatek.eu/sys/getsms.php");
TextView textView = (TextView)findViewById(R.id.textView1);
try {
HttpResponse response = httpclient.execute(httppost);
String jsonResult = inputStreamToString(response.getEntity().getContent()).toString();
JSONObject obj = new JSONObject(jsonResult);
JSONArray jsonArray = obj.getJSONArray("posts");
/*Para hacer prueba accedo a un registro concreto en este caso el 3*/
JSONObject childJSONObject = jsonArray.getJSONObject(3);
String username = childJSONObject.getString("username");
String sms = childJSONObject.getString("sms");
String fcat = childJSONObject.getString("fcat");
textView.setText(""+sms+"--" + username);
/* para hacer pruebas lo he comentado
for (int i = 0; i < jsonArray.length(); i++)
{
JSONObject childJSONObject = jsonArray.getJSONObject(i);
String username = childJSONObject.getString("username");
String sms = childJSONObject.getString("sms");
String fcat = childJSONObject.getString("fcat");
textView.setText(""+sms+"--" + username);
}*/
}
catch (JSONException e) {
e.printStackTrace();
}
catch (ClientProtocolException e) {
e.printStackTrace();
}
catch (IOException e) {
e.printStackTrace();
}
}
private StringBuilder inputStreamToString(InputStream is) {
String rLine = "";
StringBuilder answer = new StringBuilder();
BufferedReader rd = new BufferedReader(new InputStreamReader(is));
try {
while ((rLine = rd.readLine()) != null) {
answer.append(rLine);
}
}
catch (IOException e) {
e.printStackTrace();
}
return answer;
}
}
and here is the json code into iatek.eu/sys/getsms.php
{"posts":[{"cid":"11","username":"Livi","sms":"ag","fto":"","fcat":"cat"},{"cid":"10","username":"Sumone","sms":"","fto":"","fcat":""},{"cid":"9","username":"R2D2","sms":"dw","fto":"wd","fcat":"wd"},{"cid":"5","username":"Roy","sms":"sa","fto":"sa","fcat":"sa"},{"cid":"12","username":"Charles","sms":"ag","fto":"","fcat":"cat"},{"cid":"13","username":"Clarck","sms":"age","fto":"","fcat":"cat"}]}
can someone tell me where is the mistake?
thanks

You cannot run network operation on the main thread.
Use asyncTask instead.
public class JSONExampleActivity extends Activity {
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
new GetSmsTask().execute("http://iatek.eu/sys/getsms.php");
}
private class GetSmsTask extends AsyncTask<String, Void, JSONObject> {
protected JSONObject doInBackground(String... urls) {
JSONObject obj = null;
try{
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost(url[0]);
HttpResponse response = httpclient.execute(httppost);
String jsonResult = inputStreamToString(response.getEntity()
.getContent()).toString();
obj = new JSONObject(jsonResult);
}
catch (JSONException e) {
e.printStackTrace();
}
catch (ClientProtocolException e) {
e.printStackTrace();
}
catch (IOException e) {
e.printStackTrace();
}
return obj;
}
protected void onPostExecute(JSONObject obj) {
JSONArray jsonArray = obj.getJSONArray("posts");
JSONObject childJSONObject = jsonArray.getJSONObject(3);
String username = childJSONObject.getString("username");
String sms = childJSONObject.getString("sms");
String fcat = childJSONObject.getString("fcat");
textView.setText(""+sms+"--" + username);
}
}
}
EDIT:
I just ran the code myslef, and I got this
09-13 13:33:59.315: W/System.err(14200): org.json.JSONException:
Unterminated object at character 7551 of {"posts":[{......
This means your JSON is invalid
http://pro.jsonlint.com/ paste your link there you will see the error.
To test that the code is working replace this
String jsonResult = inputStreamToString(response.getEntity()
.getContent()).toString();
with this:
String jsonResult = "{\"posts\":" +
"[{\"cid\":\"11\",\"username\":\"Livi\",\"sms\":\"ag\",\"fto\":\"\",\"fcat\":\"cat\"}," +
" {\"cid\":\"11\",\"username\":\"Livi\",\"sms\":\"ag\",\"fto\":\"\",\"fcat\":\"cat\"}, " +
"{\"cid\":\"11\",\"username\":\"Livi\",\"sms\":\"ag\",\"fto\":\"\",\"fcat\":\"cat\"}," +
"{\"cid\":\"11\",\"username\":\"Livi\",\"sms\":\"ag\",\"fto\":\"\",\"fcat\":\"cat\"}]}";

RESOLVED!!!! ALL ITS PERFECT
HERE IS THE CODE
THANK YOU VERY MUCH meda
package com.json.php;
import android.app.Activity;
import android.os.AsyncTask;
import android.os.Bundle;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import android.widget.EditText;
import android.widget.TextView;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import com.json.php.R;
public class JSONExampleActivity extends Activity {
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
new GetSmsTask().execute("http://YOURWEBSITE.eu/sys/getsms.php");
}
private class GetSmsTask extends AsyncTask<String, Void, JSONObject> {
protected JSONObject doInBackground(String... urls) {
JSONObject obj = null;
try{
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost(urls[0]);
HttpResponse response = httpclient.execute(httppost);
/* String jsonResult = "{\"posts\":" + //FOR TESTS
"[{\"cid\":\"11\",\"username\":\"Livi\",\"sms\":\"ag\",\"fto\":\"\",\"fcat\":\"cat\"}," +
" {\"cid\":\"11\",\"username\":\"Livi\",\"sms\":\"ag\",\"fto\":\"\",\"fcat\":\"cat\"}, " +
"{\"cid\":\"11\",\"username\":\"Livi\",\"sms\":\"ag\",\"fto\":\"\",\"fcat\":\"cat\"}," +
"{\"cid\":\"11\",\"username\":\"Livi\",\"sms\":\"ag\",\"fto\":\"\",\"fcat\":\"cat\"}]}";
*/
String jsonResult = inputStreamToString(response.getEntity().getContent()).toString();
obj = new JSONObject(jsonResult);
}
catch (JSONException e) {
e.printStackTrace();
}
catch (ClientProtocolException e) {
e.printStackTrace();
}
catch (IOException e) {
e.printStackTrace();
}
return obj;
}
private StringBuilder inputStreamToString(InputStream is) {
String rLine = "";
StringBuilder answer = new StringBuilder();
BufferedReader rd = new BufferedReader(new InputStreamReader(is));
try {
while ((rLine = rd.readLine()) != null) {
answer.append(rLine);
}
}
catch (IOException e) {
e.printStackTrace();
}
return answer;
}
protected void onPostExecute(JSONObject obj) {
JSONArray jsonArray;
try {
jsonArray = obj.getJSONArray("posts");
JSONObject childJSONObject = jsonArray.getJSONObject(3);
String username = childJSONObject.getString("username");
String sms = childJSONObject.getString("sms");
String fcat = childJSONObject.getString("fcat");
TextView textView = (TextView) findViewById(R.id.textView1);
textView.setText(""+sms+"--" + username);
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}

Send JSON from Java to PHP through Post

I am doing an Android program that is supposed to send data from the tablet to a PHP Web Service. The code for sending the JSON:
package com.example.shvalidation;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicHeader;
import org.apache.http.protocol.HTTP;
import org.json.JSONObject;
import android.app.Activity;
import android.app.ProgressDialog;
import android.content.Intent;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.View;
public class MainMenuScreen extends Activity {
//JSON Variables
JSONParser jsonParser = new JSONParser();
String pid;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main_menu_layout);
new TestThread().execute();
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main_menu_layout, menu);
return true;
}
public void PlantToDome(View view) {
Intent intent = new Intent(this, SelectLocationScreen.class);
startActivity(intent);
}
//Código del Web Service
public class TestThread extends AsyncTask<Void, Void, Void> {
ProgressDialog dialog;
protected void onPreExecute() {
dialog = ProgressDialog.show(MainMenuScreen.this, "Loading", "Loading data, please wait..");
}
private String convertStreamToString(InputStream is) {
BufferedReader reader = new BufferedReader(new InputStreamReader(is));
StringBuilder sb = new StringBuilder();
String line = null;
try {
while ((line = reader.readLine()) != null) {
sb.append(line + "\n");
}
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
is.close();
} catch (IOException e) {
e.printStackTrace();
}
}
return sb.toString();
}
protected Void doInBackground(Void...args0) {
try {
HttpClient client = new DefaultHttpClient();
HttpResponse response;
HttpPost post = new HttpPost("http://192.168.1.101:8080/GetBook.php");
JSONObject holder = new JSONObject();
JSONObject euid = new JSONObject();
euid.put("euid", 1);
holder.accumulate("euids", euid);
euid.put("euid", 2);
holder.accumulate("euids", euid);
post.setHeader("json", holder.toString());
StringEntity se = new StringEntity(holder.toString());
se.setContentEncoding(new BasicHeader(HTTP.CONTENT_TYPE, "application/json"));
post.setEntity(se);
response = client.execute(post);
if (response != null) {
InputStream in = response.getEntity().getContent();
String a = convertStreamToString(in);
Log.i("Read from Server", a);
}
} catch (Exception e) {
Log.d("error", e.toString());
}
return null;
}
protected void onPostExecute(Void unused) {
dialog.dismiss();
}
}
}
The PHP Web Service:
<?php
ob_start();
var_dump(json_decode(file_get_contents('php://input')));
$out = ob_get_contents();
ob_end_clean();
$f = fopen('out.txt', 'w+');
fwrite($f, html_entity_decode($out));
fclose($f);
?>
I have tried different methods for getting the JSON, but none of them have worked for me. Maybe the fine people of StackOverflow can help me out with this, as they always have for every other problem that I've had.

From the comments section, it appears you only want the JSON being sent to your PHP script. Normally, you post POST this to PHP, and extract it:
<?php
print_r($_POST);
$json_string = $_POST['message'];
$json = json_decode($json_string);
print_r($json);
?>
And then a small client example:
public static void main(String[] args) {
String json = "{\"message\":\"This is a message\"}";
HttpClient httpClient = new DefaultHttpClient();
try {
HttpPost request = new HttpPost("http://somesite.com/test.php");
StringEntity params =new StringEntity("message=" + json);
request.addHeader("content-type", "application/x-www-form-urlencoded");
request.setEntity(params);
HttpResponse response = httpClient.execute(request);
// handle response here...
System.out.println(org.apache.http.util.EntityUtils.toString(response.getEntity()));
org.apache.http.util.EntityUtils.consume(response.getEntity());
} catch (Exception ex) {
// handle exception here
} finally {
httpClient.getConnectionManager().shutdown();
}
}
The output of this is:
Array
(
[message] => {"message":"This is a message"}
)
stdClass Object
(
[message] => This is a message
)

Downloading Tweets via JSON feed code not working

I'm building my first android app - something that will display my tweets in a list.
I managed to get the app working earlier, but the tweets would sometimes take a long time to download, and the app would become unresponsive or crash.
I decided to add a thread to the app so the it wouldn't become unresponsive, but now it doesn't work at all :/
Does anyone know what's wrong? It's only my third day of learning java, and I can't seem to figure out what the problem is here.
Here's the code:
package com.app.first;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.StatusLine;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import org.json.JSONArray;
import org.json.JSONObject;
import android.app.ListActivity;
import android.app.ProgressDialog;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import android.widget.ArrayAdapter;
public class Twitter extends ListActivity {
public ProgressDialog pd = null;
#Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
// Show the ProgressDialog on this thread
pd = ProgressDialog.show(this, "Working..", "Downloading Data...",
true, false);
new LoadTwitterFeed().execute();
}
public class LoadTwitterFeed extends AsyncTask<String, Integer, String> {
String tweets[] = new String[9];
public String readTwitterFeed() {
StringBuilder builder = new StringBuilder();
HttpClient client = new DefaultHttpClient();
HttpGet httpGet = new HttpGet(
"https://api.twitter.com/1/statuses/user_timeline.json?screen_name=jjmpsp&include_rts=false&count=10");
try {
HttpResponse response = client.execute(httpGet);
StatusLine statusLine = response.getStatusLine();
int statusCode = statusLine.getStatusCode();
if (statusCode == 200) {
HttpEntity entity = response.getEntity();
InputStream content = entity.getContent();
BufferedReader reader = new BufferedReader(
new InputStreamReader(content));
String line;
while ((line = reader.readLine()) != null) {
builder.append(line);
}
} else {
Log.e(ParseJSON.class.toString(), "Failed to download file");
}
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return builder.toString();
}
#Override
protected String doInBackground(String... params) {
// TODO Auto-generated method stub
String readTwitterFeed = readTwitterFeed();
try {
JSONArray jsonArray = new JSONArray(readTwitterFeed);
for (int i = 0; i < jsonArray.length(); i++) {
JSONObject jsonObject = jsonArray.getJSONObject(i);
tweets[i] = jsonObject.getString("text").toString();
}
} catch (Exception e) {
e.printStackTrace();
}
setListAdapter(new ArrayAdapter<String>(Twitter.this,
android.R.layout.simple_list_item_1, tweets));
return null;
}
#Override
protected void onPostExecute(String result) {
// what to do when the task ends.
pd.hide();
}
}
}

set this code in onPostExecute
setListAdapter(new ArrayAdapter<String>(Twitter.this,
android.R.layout.simple_list_item_1, tweets));