Develop Reference

Updating JSONFile Hosted on Web Server

This is my code for getting the JSON file in web:
package com.example.maclocation;
import java.io.IOException;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.util.EntityUtils;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import android.net.ParseException;
import android.os.AsyncTask;
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.widget.Toast;
public class MainActivity extends Activity {
String[] n1;
String[] n2;
String[] n3;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
new ActorsAsyncTask().execute("link here");
}
class ActorsAsyncTask extends AsyncTask<String, Void, Boolean> {
This is my code for getting the JSON file in web:
#Override
protected Boolean doInBackground(String... urls) {
try {
//------------------>>
HttpPost post = new HttpPost(urls[0]);
HttpClient client = new DefaultHttpClient();
HttpResponse response = client.execute(post);
// StatusLine stat = response.getStatusLine();
int status = response.getStatusLine().getStatusCode();
if (status == 200) {
HttpEntity entity = response.getEntity();
String data = EntityUtils.toString(entity);
JSONObject jsono = new JSONObject(data);
JSONArray jarray = jsono.optJSONArray("coordinates");
n1 = new String[jarray.length()];
n2 = new String[jarray.length()];
n3 = new String[jarray.length()];
for (int i = 0; i < jarray.length(); i++) {
JSONObject object = jarray.getJSONObject(i);
n1[i] = object.getString("place").toString();
n2[i] = object.getString("lat").toString();
n3[i] = object.getString("lng").toString();
}
return true;
}
//------------------>>
} catch (ParseException e1) {
e1.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (JSONException e) {
e.printStackTrace();
}
return false;
}
This is my code for getting the JSON file in web:
protected void onPostExecute(Boolean result) {
if(result == false){
Toast.makeText(getApplicationContext(), "Unable to fetch data from server", Toast.LENGTH_LONG).show();
}else{
for (int i = 0; i < n1.length; i++) {
// String xss= actorsList.
Toast.makeText(getApplicationContext(), n1[i] + "*" + n2[i]+ "*" +n3[i] , Toast.LENGTH_LONG).show();
}
}
}
}
#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;
}
}
Question:
Is it possible to update the JSON file that is hosted in web server? Like updating my current location? I am using ADT Eclipse.

So, you need to code it on the server side, using probably php, ruby, python, or any other language you may be using on the server..
And then through the app you can make an http request passing some parameter to identify which action you are taking on the same server where the JSON file is hosted (so you can reach it) and then you can edit it!
This tutorial is very good: http://www.androidhive.info/2012/01/android-login-and-registration-with-php-mysql-and-sqlite/
In this case it is a database, not an JSON file, but the idea is the same.

How to display image from mysql database?

I have code to display all data from MySQL databae also i have a image field in MySQL database which have image names.how can i display image from database(The image is located at localhost folder). Im new in android so please help me. Here is my code if u can alter my required code then it will be a great help.
JAVA
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.List;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
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 android.app.Fragment;
import android.app.ProgressDialog;
import android.content.Intent;
import android.graphics.Color;
import android.os.AsyncTask;
import android.os.Bundle;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.widget.Toast;
public class News_events extends Fragment {
private String jsonResult;
private String url = "http://192.168.2.7/crescentnews/select.php";
HttpPost httppost;
StringBuffer buffer;
HttpResponse response;
HttpClient httpclient;
List<NameValuePair> nameValuePairs;
ProgressDialog dialog = null;
InputStream is=null;
String result=null;
String line=null;
int code;
public News_events(){}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_news_events, container, false);
accessWebService();
return rootView;
}
// Async Task to access the web
private class JsonReadTask extends AsyncTask<String, Void, String> {
#Override
protected String doInBackground(String... params) {
List<NameValuePair> nameValuePair = new ArrayList<NameValuePair>(1);
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost(params[0]);
try {
httppost.setEntity(new UrlEncodedFormEntity(nameValuePair));
HttpResponse response = httpclient.execute(httppost);
jsonResult = inputStreamToString(
response.getEntity().getContent()).toString();
}
catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return null;
}
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();
Toast.makeText(getActivity().getApplicationContext(),
"Error..." + e.toString(), Toast.LENGTH_LONG).show();
}
return answer;
}
#Override
protected void onPostExecute(String result) {
display();
}
}// end async task
public void accessWebService() {
JsonReadTask task = new JsonReadTask();
// passes values for the urls string array
task.execute(new String[] { url });
}
// build hash set for list view
public void display() {
try {
JSONObject jsonResponse = new JSONObject(jsonResult);
JSONArray jsonMainNode = jsonResponse.optJSONArray("news_details");
LinearLayout MainLL= (LinearLayout)getActivity().findViewById(R.id.newslayout);
//LinearLayout headLN=(LinearLayout)findViewById(R.id.headsection);
for (int i = 0; i < jsonMainNode.length(); i++) {
JSONObject jsonChildNode = jsonMainNode.getJSONObject(i);
final String head = jsonChildNode.optString("title");
final String details = jsonChildNode.optString("text");
final String date = jsonChildNode.optString("date");
//final String time = jsonChildNode.optString("time");
TextView headln = new TextView(this.getActivity());
headln.setText(head); // News Headlines
headln.setTextSize(20);
headln.setTextColor(Color.BLACK);
headln.setGravity(Gravity.CENTER);
headln.setBackgroundResource(R.drawable.menubg);
headln.setPadding(10, 20, 10, 0);
headln.setWidth(100);
headln.setClickable(true);
headln.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
//Toast.makeText(getBaseContext(), head, Toast.LENGTH_SHORT).show();
Intent intent = new Intent(getActivity().getApplicationContext(),MainActivity.class);
intent.putExtra("head",head.toString());
intent.putExtra("details",details.toString());
intent.putExtra("date",date.toString());
// intent.putExtra("time",time.toString());
startActivity(intent);
}
});
ImageView photo=new ImageView(this.getActivity());
//dateln.setBackgroundColor(Color.parseColor("#f20056"));
photo.setBackgroundColor(Color.parseColor("#000000"));
photo.setPadding(0, 0, 10, 10);
photo.setClickable(true);
TextView dateln = new TextView(this.getActivity());
dateln.setText(date); // News Headlines
dateln.setTextSize(12);
dateln.setTextColor(Color.BLACK);
dateln.setGravity(Gravity.RIGHT);
//dateln.setBackgroundColor(Color.parseColor("#f20056"));
dateln.setBackgroundColor(0x00000000);
dateln.setPadding(0, 0, 10, 10);
dateln.setWidth(100);
dateln.setClickable(true);
dateln.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
Intent intent = new Intent(getActivity().getApplicationContext(), MainActivity.class);
intent.putExtra("head",head.toString());
intent.putExtra("details",details.toString());
intent.putExtra("date",date.toString());
// intent.putExtra("time",time.toString());
startActivity(intent);
}
});
View sep=new View(this.getActivity());
sep.setBackgroundColor(Color.parseColor("#252525"));
sep.setMinimumHeight(10);
TextView detailsln = new TextView(this.getActivity());
detailsln.setText(details); // News Details
detailsln.setTextSize(12);
detailsln.setTextColor(Color.BLACK);
detailsln.setGravity(Gravity.LEFT);
detailsln.setPadding(10, 10, 10, 10);
MainLL.addView(headln);
MainLL.addView(dateln);
MainLL.addView(photo);
MainLL.addView(detailsln);
MainLL.addView(sep);
detailsln.setClickable(true);
detailsln.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
Intent intent = new Intent(getActivity().getApplicationContext(), MainActivity.class);
intent.putExtra("head",head.toString());
intent.putExtra("details",details.toString());
intent.putExtra("date",date.toString());
// intent.putExtra("time",time.toString());
startActivity(intent);
}
});
}
} catch (JSONException e) {
Toast.makeText(getActivity().getApplicationContext(), "Error" + e.toString(),
Toast.LENGTH_SHORT).show();
}
}
}

save your image url in db (if they are in a same folder on your host choose a base url and save only image name)
after fetching your data , there are alot of library for display images such as :
Picasso
A powerful image downloading and caching library for Android

confirm login details in android after posting data in json

i have an android program having two fields name and pas which post the data in json format and the response is "data sent." instead of that response i want the name and pass parameters to be checked by my api which is connected to database.
#Override
protected void onPostExecute(String result) {
Toast.makeText(getBaseContext(), "Data sent!", Toast.LENGTH_LONG).show();
}
the complete code
package com.hmkcode.android;
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.json.JSONObject;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;
import android.app.Activity;
import com.hmkcode.android.vo.Person;
public class MainActivity extends Activity implements OnClickListener {
TextView tvIsConnected;
EditText etName,etCountry,etTwitter;
Button btnPost;
Person person;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// get reference to the views
tvIsConnected = (TextView) findViewById(R.id.tvIsConnected);
etName = (EditText) findViewById(R.id.etName);
etCountry = (EditText) findViewById(R.id.etCountry);
btnPost = (Button) findViewById(R.id.btnPost);
// check if you are connected or not
if(isConnected()){
tvIsConnected.setBackgroundColor(0xFF00CC00);
tvIsConnected.setText("You are conncted");
}
else{
tvIsConnected.setText("You are NOT conncted");
}
// add click listener to Button "POST"
btnPost.setOnClickListener(this);
}
public static String POST(String url, Person person){
InputStream inputStream = null;
String result = "";
try {
// 1. create HttpClient
HttpClient httpclient = new DefaultHttpClient();
// 2. make POST request to the given URL
HttpPost httpPost = new HttpPost(url);
String json = "";
// 3. build jsonObject
JSONObject jsonObject = new JSONObject();
jsonObject.accumulate("Email", person.getName());
jsonObject.accumulate("Password", person.getCountry());
// 4. convert JSONObject to JSON to String
json = jsonObject.toString();
// ** Alternative way to convert Person object to JSON string usin Jackson Lib
// ObjectMapper mapper = new ObjectMapper();
// json = mapper.writeValueAsString(person);
// 5. set json to StringEntity
StringEntity se = new StringEntity(json);
// 6. set httpPost Entity
httpPost.setEntity(se);
// 7. Set some headers to inform server about the type of the content
httpPost.setHeader("Accept", "application/json");
httpPost.setHeader("Content-type", "application/json");
// 8. Execute POST request to the given URL
HttpResponse httpResponse = httpclient.execute(httpPost);
// 9. receive response as inputStream
inputStream = httpResponse.getEntity().getContent();
// 10. convert inputstream to string
if(inputStream != null)
result = convertInputStreamToString(inputStream);
else
result = "Did not work!";
} catch (Exception e) {
Log.d("InputStream", e.getLocalizedMessage());
}
// 11. return result
return result;
}
public boolean isConnected(){
ConnectivityManager connMgr = (ConnectivityManager) getSystemService(Activity.CONNECTIVITY_SERVICE);
NetworkInfo networkInfo = connMgr.getActiveNetworkInfo();
if (networkInfo != null && networkInfo.isConnected())
return true;
else
return false;
}
#Override
public void onClick(View view) {
switch(view.getId()){
case R.id.btnPost:
if(!validate())
Toast.makeText(getBaseContext(), "Enter some data!", Toast.LENGTH_LONG).show();
// call AsynTask to perform network operation on separate thread
new HttpAsyncTask().execute("http://dev.blinkawards.com/blinkawards.RestService/Service1/LoginRequestTemp");
break;
}
}
private class HttpAsyncTask extends AsyncTask<String, Void, String> {
#Override
protected String doInBackground(String... urls) {
person = new Person();
person.setName(etName.getText().toString());
person.setCountry(etCountry.getText().toString());
return POST(urls[0],person);
}
// onPostExecute displays the results of the AsyncTask.
#Override
protected void onPostExecute(String result) {
Toast.makeText(getBaseContext(), result, Toast.LENGTH_LONG).show();
}
}
private boolean validate(){
if(etName.getText().toString().trim().equals(""))
return false;
else if(etCountry.getText().toString().trim().equals(""))
return false;
else
return true;
}
private static String convertInputStreamToString(InputStream inputStream) throws IOException{
BufferedReader bufferedReader = new BufferedReader( new InputStreamReader(inputStream));
String line = "";
String result = "";
while((line = bufferedReader.readLine()) != null)
result += line;
inputStream.close();
return result;
}
}

HTTP POST + ANDROID not giving response

I am beginner for Android. I want to send the data to my PHP page. but here i m trying to toast that post values. but there is no response. Plz help me.
My Code is:
public class send_msgActivity extends Activity{
//static final String KEY_NAME = "name";
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.send_msg);
Button btn_ok = (Button) findViewById(R.id.btn_ok);
btn_ok.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View arg0) {
EditText editText1 = (EditText)findViewById(R.id.sender);
String S_name = editText1.getText().toString();
EditText editText2 = (EditText)findViewById(R.id.reciever);
String S_email = editText2.getText().toString();
postData(S_name,S_email);
}
});
};
public void postData(String name,String email) {
// Create a new HttpClient and Post Header
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost("http://www.URL.com/yourpage.php");
try {
// Add your data
List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(2);
nameValuePairs.add(new BasicNameValuePair("Fname", name));
nameValuePairs.add(new BasicNameValuePair("Femail", email));
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
// Execute HTTP Post Request
//HttpResponse response = httpclient.execute(httppost, new BasicResponseHandler());
HttpResponse response = httpclient.execute(httppost);
String reverseString = response.toString();
Toast.makeText(this, "response" + reverseString, Toast.LENGTH_LONG).show();
} catch (ClientProtocolException e) {
// TODO Auto-generated catch block
} catch (IOException e) {
// TODO Auto-generated catch block
}
}
}

Use this example how to code HTTPpost method
package com.example.login;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import org.apache.http.HttpResponse;a
import org.apache.http.NameValuePair;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.params.BasicHttpParams;
import org.apache.http.params.HttpConnectionParams;
import org.apache.http.params.HttpParams;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import android.os.AsyncTask;
import android.os.Bundle;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.util.Log;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.Spinner;
import android.widget.TextView;
import android.widget.Toast;
public class pdf extends Activity
{
public boolean connect=false,logged=false;
public String db_select;
ListView l1;
String mPwd,UName1="Success",UName,ret;
public Iterator<String> itr;
private String SERVICE_URL = "http://61.12.7.197:8080/Agero/person/pdf";
private String SERVICE_URL1 = "http://61.12.7.197:8080/Agero/person/url";
//private final String SERVICE_URL = "http://10.1.1.138:8080/Agero/person/pdf";
//private final String SERVICE_URL1 = "http://10.1.1.138:8080/Agero/person/url";
private final String TAG = "Course";
ArrayList<String> todoItems;
Boolean isInternetPresent = false;
ConnectionDetector cd;
ArrayAdapter<String> aa;
public List<String> list1=new ArrayList<String>();
#Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.pdf);
l1 = (ListView)findViewById(R.id.list);
todoItems = new ArrayList<String>();
aa = new ArrayAdapter<String>(this,R.layout.list_row,R.id.title,todoItems);
l1.setAdapter(aa);
todoItems.clear();
cd = new ConnectionDetector(getApplicationContext());
isInternetPresent = cd.isConnectingToInternet();
if(isInternetPresent)
{
try
{
validat_user();
//display("hi");
}
catch(Exception e)
{
display("Network error.\nPlease check with your network settings.");
}
}
else
{
display("No Internet Connection..");
}
l1.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
// TODO Auto-generated method stub
String name=(String)parent.getItemAtPosition(position);
/*Toast.makeText(getBaseContext(), name, Toast.LENGTH_LONG).show();
Intent i = new Intent(getBaseContext(),Webview.class);
i.putExtra("USERNAME", name);
startActivity(i);*/
cd = new ConnectionDetector(getApplicationContext());
isInternetPresent = cd.isConnectingToInternet();
if(isInternetPresent)
{
try
{
validat_user1(name);
}
catch(Exception e)
{
display("Network error.\nPlease check with your network settings.");
}
}
else
{
display("No Internet Connection..");
}
}
});
}
public void display(String msg)
{
Toast.makeText(pdf.this, msg, Toast.LENGTH_LONG).show();
}
private void validat_user()
{
WebServiceTask wst = new WebServiceTask(WebServiceTask.POST_TASK, this, "");
// wst.addNameValuePair("State", stg1);
// wst.addNameValuePair("Emp_PWD", stg2);
// db_select=stg1;
//display("I am");
wst.execute(new String[] { SERVICE_URL });
//display(SERVICE_URL);
}
private void validat_user1(String stg1)
{
db_select=stg1;
WebServiceTask wst = new WebServiceTask(WebServiceTask.POST_TASK, this, "Loading...");
wst.addNameValuePair1("PDF_NAME", stg1);
wst.execute(new String[] { SERVICE_URL1 });
}
#SuppressWarnings("deprecation")
public void no_net()
{
display( "No Network Connection");
final AlertDialog alertDialog = new AlertDialog.Builder(pdf.this).create();
alertDialog.setTitle("No Internet Connection");
alertDialog.setMessage("You don't have internet connection.\nElse please check the Internet Connection Settings.");
//alertDialog.setIcon(R.drawable.error_info);
alertDialog.setCancelable(false);
alertDialog.setButton("Close", new DialogInterface.OnClickListener()
{
public void onClick(DialogInterface dialog, int which)
{
alertDialog.cancel();
pdf.this.finish();
System.exit(0);
}
});
alertDialog.setButton2("Use Local DataBase", new DialogInterface.OnClickListener()
{
public void onClick(DialogInterface dialog, int which)
{
display( "Accessing local DataBase.....");
alertDialog.cancel();
}
});
alertDialog.show();
}
private class WebServiceTask extends AsyncTask<String, Integer, String> {
public static final int POST_TASK = 1;
private static final String TAG = "WebServiceTask";
// connection timeout, in milliseconds (waiting to connect)
private static final int CONN_TIMEOUT = 3000;
// socket timeout, in milliseconds (waiting for data)
private static final int SOCKET_TIMEOUT = 5000;
private int taskType = POST_TASK;
private Context mContext = null;
private String processMessage = "Processing...";
private ArrayList<NameValuePair> params = new ArrayList<NameValuePair>();
private ProgressDialog pDlg = null;
public WebServiceTask(int taskType, Context mContext, String processMessage) {
this.taskType = taskType;
this.mContext = mContext;
this.processMessage = processMessage;
}
public void addNameValuePair1(String name, String value) {
params.add(new BasicNameValuePair(name, value));
}
#SuppressWarnings("deprecation")
private void showProgressDialog() {
pDlg = new ProgressDialog(mContext);
pDlg.setMessage(processMessage);
pDlg.setProgressDrawable(mContext.getWallpaper());
pDlg.setProgressStyle(ProgressDialog.STYLE_SPINNER);
pDlg.setCancelable(false);
pDlg.show();
}
#Override
protected void onPreExecute() {
showProgressDialog();
}
protected String doInBackground(String... urls) {
String url = urls[0];
String result = "";
HttpResponse response = doResponse(url);
if (response == null) {
return result;
} else {
try {
result = inputStreamToString(response.getEntity().getContent());
} catch (IllegalStateException e) {
Log.e(TAG, e.getLocalizedMessage(), e);
} catch (IOException e) {
Log.e(TAG, e.getLocalizedMessage(), e);
}
}
return result;
}
#Override
protected void onPostExecute(String response) {
handleResponse(response);
pDlg.dismiss();
}
// Establish connection and socket (data retrieval) timeouts
private HttpParams getHttpParams() {
HttpParams htpp = new BasicHttpParams();
HttpConnectionParams.setConnectionTimeout(htpp, CONN_TIMEOUT);
HttpConnectionParams.setSoTimeout(htpp, SOCKET_TIMEOUT);
return htpp;
}
private HttpResponse doResponse(String url) {
// Use our connection and data timeouts as parameters for our
// DefaultHttpClient
HttpClient httpclient = new DefaultHttpClient(getHttpParams());
HttpResponse response = null;
try {
switch (taskType) {
case POST_TASK:
HttpPost httppost = new HttpPost(url);
// Add parameters
httppost.setEntity(new UrlEncodedFormEntity(params));
response = httpclient.execute(httppost);
break;
}
} catch (Exception e) {
display("Remote DataBase can not be connected.\nPlease check network connection.");
Log.e(TAG, e.getLocalizedMessage(), e);
return null;
}
return response;
}
private String inputStreamToString(InputStream is) {
String line = "";
StringBuilder total = new StringBuilder();
// Wrap a BufferedReader around the InputStream
BufferedReader rd = new BufferedReader(new InputStreamReader(is));
try {
// Read response until the end
while ((line = rd.readLine()) != null) {
total.append(line);
}
} catch (IOException e) {
Log.e(TAG, e.getLocalizedMessage(), e);
}
// Return full string
return total.toString();
}
}
public void handleResponse(String response)
{ //display("JSON responce is : "+response);
if(!response.equals(""))
{
try {
JSONObject jso = new JSONObject(response);
int UName = jso.getInt("status1");
if(UName==1)
{
String status = jso.getString("status");
ret=status.substring(13,status.length()-2);
todoItems.add(0, status);
aa.notifyDataSetChanged();
}
else if(UName==-1)
{
String status = jso.getString("status");
//display(status);
Intent intObj=new Intent(pdf.this,Webview.class);
intObj.putExtra("USERNAME", status);
startActivity(intObj);
}
else
{
// int count=Integer.parseInt(UName);
// display("Number of Projects have been handling in AFL right now: "+count);
list1=new ArrayList<String>();
JSONArray array=jso.getJSONArray("reps1");
for(int i=0;i<array.length();i++)
{
list1.add(array.getJSONObject(i).getString("pdfName"));
}
itr=list1.iterator();
while(itr.hasNext())
{
//str1=itr.next()+"\n";
todoItems.add(0, itr.next().toString());
aa.notifyDataSetChanged();
}
//tv1.setText(str1);
}
} catch (Exception e) {
Log.e(TAG, e.getLocalizedMessage(), e);
return;
}
}
else
{
display("unable to reach the server");
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.activity_main, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.home:
Intent intObj=new Intent(pdf.this, MainActivity.class);
intObj.putExtra("finish", true); // if you are checking for this in your other Activities
intObj.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP |
Intent.FLAG_ACTIVITY_CLEAR_TASK |
Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intObj);
//pdf.this.finish();
finish();
return (true);
}
return super.onOptionsItemSelected(item);
}
}

Unable to save values into sql server database. no error in my code

i have an application that should save values in a sql server database but when i check in my database no data is saved and my code does not show error.please review my code and correct errors accordingly. thank you
feedback.java
package com.IwayAfrica.feedback;
import java.util.ArrayList;
import java.util.List;
import org.apache.http.NameValuePair;
import org.apache.http.message.BasicNameValuePair;
import org.json.JSONException;
import org.json.JSONObject;
import android.app.Activity;
import android.app.ProgressDialog;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.util.Log;
import android.os.AsyncTask;
import android.content.DialogInterface;
import android.app.AlertDialog;
public class feedback extends Activity
{
private ProgressDialog pDialog;
JSONParser jsonParser = new JSONParser();
EditText inputcomment;
RadioGroup sorted;
RadioGroup ambiance;
RadioGroup rooms;
RadioGroup food;
RadioGroup reception;
Button buttonsave;
int success = 0;
String sort = "";
String room = "";
String foods = "";
String amb = "";
String rec = "";
private static String url_register_user = "http://http://localhost/IwayAfrica%20Feedback/processs.php";
private static final String TAG_SUCCESS = "success";
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.feedback);
inputcomment = (EditText) findViewById(R.id.comment);
Button buttonsave = (Button) findViewById(R.id.btnsave);
final RadioGroup sorted = (RadioGroup)findViewById(R.id.sorted);
final RadioButton yes1 = (RadioButton)findViewById(R.id.yes1);
final RadioButton no1 = (RadioButton)findViewById(R.id.no1);
final RadioButton par = (RadioButton)findViewById(R.id.par);
final RadioGroup ambiance = (RadioGroup)findViewById(R.id.ambiance);
final RadioButton fast = (RadioButton)findViewById(R.id.fast);
final RadioButton fasten = (RadioButton)findViewById(R.id.fasten);
final RadioButton slow = (RadioButton)findViewById(R.id.slow);
final RadioGroup rooms = (RadioGroup)findViewById(R.id.rooms);
final RadioButton reyes = (RadioButton)findViewById(R.id.reyes);
final RadioButton reno = (RadioButton)findViewById(R.id.reno);
final RadioButton remaybe = (RadioButton)findViewById(R.id.remaybe);
final RadioGroup food = (RadioGroup)findViewById(R.id.food);
final RadioButton fdbest = (RadioButton)findViewById(R.id.fdbest);
final RadioButton fdgood = (RadioButton)findViewById(R.id.fdgood);
final RadioButton fdfair = (RadioButton)findViewById(R.id.fdfair);
final RadioButton fdpoor = (RadioButton)findViewById(R.id.fdpoor);
final RadioGroup reception = (RadioGroup)findViewById(R.id.reception);
final RadioButton rsbest = (RadioButton)findViewById(R.id.rsbest);
final RadioButton rsgood = (RadioButton)findViewById(R.id.rsgood);
final RadioButton rsfair = (RadioButton)findViewById(R.id.rsfair);
final RadioButton rspoor = (RadioButton)findViewById(R.id.rspoor);
Button send = (Button) findViewById(R.id.btnsave);
send.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
String comment = inputcomment.getText().toString();
if (sorted.getCheckedRadioButtonId() == yes1.getId())
{
sort = "100";
}
else if (sorted.getCheckedRadioButtonId() == par.getId())
{
sort = "60";
}
else if (sorted.getCheckedRadioButtonId() == no1.getId())
{
sort = "30";
}
if (ambiance.getCheckedRadioButtonId() == fast.getId())
{
amb = "100";
}
else if (ambiance.getCheckedRadioButtonId() == fasten.getId())
{
amb = "60";
}
else if (ambiance.getCheckedRadioButtonId() == slow.getId())
{
amb = "30";
}
if (rooms.getCheckedRadioButtonId() == reyes.getId())
{
room = "100";
}
else if (rooms.getCheckedRadioButtonId() == remaybe.getId())
{
room = "60";
}
else if (rooms.getCheckedRadioButtonId() == reno.getId())
{
room = "30";
}
if (food.getCheckedRadioButtonId() == fdbest.getId())
{
foods = "100";
}
else if (food.getCheckedRadioButtonId() == fdgood.getId())
{
foods = "75";
}
else if (food.getCheckedRadioButtonId() == fdfair.getId())
{
foods = "50";
}
else if (food.getCheckedRadioButtonId() == fdpoor.getId())
{
foods = "25";
}
if (reception.getCheckedRadioButtonId() == rsbest.getId())
{
rec = "100";
}
else if (reception.getCheckedRadioButtonId() == rsgood.getId())
{
rec = "75";
}
else if (reception.getCheckedRadioButtonId() == rsfair.getId())
{
rec = "50";
}
else if (reception.getCheckedRadioButtonId() == rspoor.getId())
{
rec = "25";
}
new RegisterNewUser().execute();
}
});
}
public void gotomain(View v){
Intent intent = new Intent(this, main.class);
startActivity(intent);
}
class RegisterNewUser extends AsyncTask<String, String, String>{
protected String doInBackground(String... args) {
String comment = inputcomment.getText().toString();
List<NameValuePair> params = new ArrayList<NameValuePair>();
params.add(new BasicNameValuePair("comment", comment));
params.add(new BasicNameValuePair("sort", sort));
params.add(new BasicNameValuePair("amb", amb));
params.add(new BasicNameValuePair("room", room));
params.add(new BasicNameValuePair("rec", rec));
params.add(new BasicNameValuePair("foods", foods));
JSONObject json = jsonParser.makeHttpRequest(url_register_user,
"POST", params);
// check log cat fro response
Log.d("Create Response", json.toString());
// check for success tag
try {
int success = json.getInt(TAG_SUCCESS);
if (success == 1) {
// successfully created product
Intent i = new Intent(getApplicationContext(), main.class);
startActivity(i);
// closing this screen
finish();
} else {
// failed to create product
}
} catch (Exception e)
{
e.printStackTrace();
}
return null;
}
}
}
JSONParser.java
package com.IwayAfrica.feedback;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.util.List;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.utils.URLEncodedUtils;
import org.apache.http.impl.client.DefaultHttpClient;
import org.json.JSONException;
import org.json.JSONObject;
import android.util.Log;
public class JSONParser {
static InputStream is = null;
static JSONObject jObj = null;
static String json = "";
// constructor
public JSONParser() {
}
// function get json from url
// by making HTTP POST or GET mehtod
public JSONObject makeHttpRequest(String url, String method,
List<NameValuePair> params) {
// Making HTTP request
try {
// check for request method
if(method == "POST"){
// request method is POST
// defaultHttpClient
DefaultHttpClient httpClient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(url);
httpPost.setEntity(new UrlEncodedFormEntity(params));
HttpResponse httpResponse = httpClient.execute(httpPost);
HttpEntity httpEntity = httpResponse.getEntity();
is = httpEntity.getContent();
}else if(method == "GET"){
// request method is GET
DefaultHttpClient httpClient = new DefaultHttpClient();
String paramString = URLEncodedUtils.format(params, "utf-8");
url += "?" + paramString;
HttpGet httpGet = new HttpGet(url);
HttpResponse httpResponse = httpClient.execute(httpGet);
HttpEntity httpEntity = httpResponse.getEntity();
is = httpEntity.getContent();
}
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
try {
BufferedReader reader = new BufferedReader(new InputStreamReader(
is, "iso-8859-1"), 8);
StringBuilder sb = new StringBuilder();
String line = null;
while ((line = reader.readLine()) != null) {
sb.append(line + "\n");
}
is.close();
json = sb.toString();
} catch (Exception e) {
Log.e("Buffer Error", "Error converting result " + e.toString());
}
// try parse the string to a JSON object
try {
jObj = new JSONObject(json);
} catch (JSONException e) {
Log.e("JSON Parser", "Error parsing data " + e.toString());
}
// return JSON String
return jObj;
}
}
processs.php
<?php
/*
* Following code will create a new product row
* All product details are read from HTTP Post Request
*/
// array for JSON response
$response = array();
// check for required fields
if (isset($_POST['sort']) && isset($_POST['amb']) && isset($_POST['room']) && isset($_POST['foods']) && isset($_POST['rec']) && isset($_POST['comment'])) {
$problem=$_POST['sort'];
$time=$_POST['amb'];
$reccomend=$_POST['room'];
$rate1=$_POST['foods'];
$rate2=$_POST['rec'];
$improve=$_POST['comment'];
// include db connect class
require_once __DIR__ . '/connect.php';
// connecting to db
$db = new DB_CONNECT();
// mysql inserting a new row
$result = mysql_query("INSERT INTO feedback (problem,time,reccomend,rate1,rate2,improve) VALUES('$problem','$time','$reccomend','$rate1','$rate2','$improve')";
// check if row inserted or not
if ($result) {
// successfully inserted into database
$response["success"] = 1;
$response["message"] = "feedback successfull.";
// echoing JSON response
echo json_encode($response);
} else {
// failed to insert row
$response["success"] = 0;
$response["message"] = "Oops! An error occurred.";
// echoing JSON response
echo json_encode($response);
}
} else {
// required field is missing
$response["success"] = 0;
$response["message"] = "Required field(s) is missing";
// echoing JSON response
echo json_encode($response);
}
?>

A couple things come to mind:
1) Check your connect.php file. I would bet that the either the name, password or user of your database is wrong.
2) Check that the table column names and the table name are spelled correctly.
3) Encode the error in your result array so you can read what it is.

$problem=$_POST['sort'];
$time=$_POST['amb'];
$reccomend=$_POST['room'];
$rate1=$_POST['foods'];
$rate2=$_POST['rec'];
$improve=$_POST['comment'];
why you not declare $problem = $_POST['problem'];
for me your file so confusing.
then you must try that php file was success. Try to execute from your browser. if not success,that is something wrong with your php.
for radio button,try this http://nsafaat.wordpress.com/2011/07/27/form-master-entry-data-ke-mysql-server-berbasis-android/.
it's work for me.