Develop Reference

crlf expected at end of chunk httpclient

I am trying to perse data from my server. I am using HttpClient to get my data. But sometime the data is not fetched and i am shown the error called crlf expected at the end of chunk.I have tried to Change buffer size in jmeter properties following this link but the issue is not solved. I am giving my code below.Cant find the solution. Need help.
FavouriteCategoriesJsonParser.java
import org.json.JSONArray;
import org.json.JSONObject;
import java.util.ArrayList;
import org.apache.http.util.EntityUtils;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
public class FavouriteCategoriesJsonParser {
public static ArrayList<String> selectedCategories = new ArrayList<>();
public ArrayList<Category> getParsedCategories() {
String JsonFavouriteCategories = "";
ArrayList<Category> MyArraylist = new ArrayList<>();
HttpClient httpClient = new DefaultHttpClient();
HttpGet httpGet = new HttpGet("http://xxxxx.com.yy/test_file/get_value.php");
try {
// ServiceHandler jsonParser = new ServiceHandler();
// String json = jsonParser.makeServiceCall(campaign_credit,ServiceHandler.GET,params);
HttpResponse httpResponse = httpClient.execute(httpGet);
JsonFavouriteCategories = EntityUtils.toString(httpResponse.getEntity());
JSONArray jsonArray = new JSONArray(JsonFavouriteCategories);
for (int i = 0; i < jsonArray.length(); i++) {
Category genres = new Category();
JSONObject MyJsonObject = jsonArray.getJSONObject(i);
genres.setCateogry_id(MyJsonObject.getString("DOC_CODE"));
genres.setCategory_Name(MyJsonObject.getString("DOC_CODE"));
genres.setCategory_Name2(MyJsonObject.getString("DOC_NAME"));
genres.setSelected(Boolean.parseBoolean(MyJsonObject.getString("SELECTED")));
MyArraylist.add(genres);
if (MyJsonObject.getString("SELECTED").equals("true")) {
selectedCategories.add(MyJsonObject.getString("DOC_CODE"));
}
}
} catch (Exception e) {
e.printStackTrace();
}
return MyArraylist;
}
}
FatchData.java
import android.app.ProgressDialog;
import android.content.Context;
import android.content.Intent;
import android.graphics.Typeface;
import android.os.AsyncTask;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.ListView;
import android.widget.Toast;
import java.util.ArrayList;
import androidx.appcompat.app.AppCompatActivity;
import com.myproject.demo.adapter.CategoryAdapter;
import com.myproject.demo.model.Category;
import com.myproject.demo.FavouriteCategoriesJsonParser;
//PcProposalDoc
public class PcProposalDoc extends AppCompatActivity {
Context context;
ArrayList<Category> array_list;
FavouriteCategoriesJsonParser categoryJsonParser;
String categoriesCsv;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.proposal_activity_main);
Typeface fontFamily = Typeface.createFromAsset(getAssets(), "fonts/fontawesome.ttf");
Button button = (Button) findViewById(R.id.selectCategoryButton);
context = this;
new asyncTask_getCategories().execute();
button.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
categoriesCsv = FavouriteCategoriesJsonParser.selectedCategories.toString();
categoriesCsv = categoriesCsv.substring(1, categoriesCsv.length() - 1);
if (categoriesCsv.length() > 0) {
new asyncTask_insertUpdatefavouriteCategories().execute();
} else {
Toast.makeText(context, "Please Select Doctor", Toast.LENGTH_SHORT).show();
}
}
});
}
public class asyncTask_getCategories extends AsyncTask<Void, Void, Void> {
ProgressDialog dialog = new ProgressDialog(context);
#Override
protected void onPreExecute() {
dialog.setTitle("Please wait...");
dialog.setMessage("Loading Doctors!");
dialog.show();
array_list = new ArrayList<>();
categoryJsonParser = new FavouriteCategoriesJsonParser();
super.onPreExecute();
}
#Override
protected Void doInBackground(Void... params) {
array_list = categoryJsonParser.getParsedCategories();
return null;
}
#Override
protected void onPostExecute(Void s) {
ListView mListViewBooks = (ListView) findViewById(R.id.category_listView);
final CategoryAdapter categoryAdapter = new CategoryAdapter(context, R.layout.row_category, array_list);
mListViewBooks.setAdapter(categoryAdapter);
super.onPostExecute(s);
dialog.dismiss();
}
}
public class asyncTask_insertUpdatefavouriteCategories extends AsyncTask<Void, Void, Void> {
String response;
#Override
protected Void doInBackground(Void... params) {
response = InsertUpdateFavouriteCategories.insertUpdateCall(categoriesCsv);
return null;
}
#Override
protected void onPostExecute(Void s) {
Toast.makeText(context, response, Toast.LENGTH_SHORT).show();
super.onPostExecute(s);
}
}
}

May be old, Can save some time.....
I got this error where Server is in Python and Clinet is Java.
1st Error from Java Client
Error while sending data over http java.io.IOException: CRLF expected at end of chunk: 79/82
java.io.IOException: CRLF expected at end of chunk: 79/82
2nd Error from Java Clinet
Error while sending data over http java.io.IOException: chunked stream ended unexpectedly
java.io.IOException: chunked stream ended unexpectedly"
Both the errors got resolved by changing the ok response with chunked stream size
One with issues
HTTP/1.1 200 OK\r\nContent-Type: application/json\r\nTransfer-Encoding: chunked\r\nServer: Jetty(6.1.26)\r\n\r\nDE\r\n"
Resolved with
HTTP/1.1 200 OK\r\nContent-Length: 20000\r\nContent-Type: application/json\r\nTransfer-Encoding: chunked\r\nServer: Jetty(6.1.26)\r\n\r\n229\r\n"
Note = nDE is replaced with n229

Authenticate Login to Rest api With single click button

i Edited all my previous question . I solved that long time ago .
but now i am here and just getting all things done :
i have a login activity :
which makes a call to rest api with credentials .
i have created the login activity it works ok but i have to press the button two times in order to perform some action . i think there is a mistake in my code :
here is my login activity ... if anyone can help me in this i will accept it as answer and will close this link on my stickies....
login.java:
import android.app.Activity;
import android.app.ProgressDialog;
import android.content.Intent;
import android.os.AsyncTask;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import org.apache.http.HttpEntity;
import org.apache.http.NameValuePair;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.HttpResponse;
import org.apache.http.client.utils.URLEncodedUtils;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.util.EntityUtils;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.util.List;
public class login_act extends Activity {
private ProgressDialog pDialog;
List<NameValuePair> params=null;
static String response = null;
private String url = "http://hostname_ip/rest-api/xxxxx/?format=json";
static String u="";
static String p="";
String temp= "";
// User name
private EditText et_Username;
// Password
private EditText et_Password;
// Sign In
private Button bt_SignIn;
// Message
private TextView tv_Message;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.login_layout);
// Initialization
et_Username = (EditText) findViewById(R.id.u_name);
et_Password = (EditText) findViewById(R.id.password);
bt_SignIn = (Button) findViewById(R.id.sign_in);
tv_Message = (TextView) findViewById(R.id.statusop);
bt_SignIn.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View view) {
// Stores User name
String username = String.valueOf(et_Username.getText());
u=username;
// Stores Password
String password = String.valueOf(et_Password.getText());
p=password;
new Getlogin().execute();
}
});
}
private class Getlogin extends AsyncTask<Void, Void, Void> {
#Override
protected void onPreExecute() {
super.onPreExecute();
// Showing progress dialog
pDialog = new ProgressDialog(login_act.this);
pDialog.setMessage("Signing In...");
pDialog.setCancelable(false);
pDialog.show();
}
#Override
protected Void doInBackground(Void... arg0) {
DefaultHttpClient httpClient = new DefaultHttpClient();
HttpEntity httpEntity = null;
HttpResponse httpResponse = null;
String credentials = u + ":" + p;
try {
if (params != null) {
String paramString = URLEncodedUtils
.format(params, "utf-8");
url += "?" + paramString;
}
HttpGet httpGet = new HttpGet(url);
String base64EncodedCredentials = Base64.encodeBytes(credentials.getBytes());
httpGet.addHeader("Authorization", "Basic " + base64EncodedCredentials);
httpResponse = httpClient.execute(httpGet);
httpEntity = httpResponse.getEntity();
temp = response = EntityUtils.toString(httpEntity);
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return null;
}
#Override
protected void onPostExecute(Void result) {
super.onPostExecute(result);
// Dismiss the progress dialog
if (pDialog.isShowing())
try {
pDialog.dismiss();
if(temp.contains("count")){
tv_Message.setText("Logged In");
Intent go = new Intent(login_act.this,Scnd.class);
Bundle extras = new Bundle();
extras.putString("status", response);
extras.putString("user", u);
extras.putString("pass", p);
// 4. add bundle to intent
go.putExtras(extras);
startActivity(go);
finish();
}else
tv_Message.setText("Invalid username or password");
}
catch (Exception e)
{
e.printStackTrace();
}
}
}
}
i only want if user and pass are ok then intent to new activity . if the user pasword are wrong then display response with incorect user password
but the activity performs it by clicking twice a button . i want to make it single click.. any help ?? i would be thankful.

You need to have an installation of Newfies-Dialer in order to use the API, in other words the API url will be the one from your own server.
The documentation clearly say API URL => http://HOSTNAME_IP/rest-api/campaigns/

How to display a ProgressDialog in an AsyncTask?

My Android app got one AsyncTask which gets me data from my server. When I pull a few rows from the database then it's done very fast and I don't need a loading animation while it is getting fresh data.
When I pull 2,3k rows from the database, that might slow things down so I decided to use some indicator (loading animation), so the user knows that data is collecting in the background. I got one activity Fill_in_phone where I call the asyncTask named GetOcitanja.
My code for the AsynTask is:
import android.app.Activity;
import android.app.ProgressDialog;
import android.os.AsyncTask;
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.apache.http.protocol.HTTP;
import org.apache.http.util.EntityUtils;
import java.io.IOException;
public class GetOcitanja extends AsyncTask<Object, Void, String> {
Activity _context;
String _str_mesg;
String _str_naslov;
public ProgressDialog progress;
public GetOcitanja(Activity context, String str_naslov, String str_message){
this._context = context;
this._str_naslov = str_naslov;
this._str_mesg = str_message;
}
#Override
protected void onPreExecute() {
//super.onPreExecute();
progress = ProgressDialog.show(_context, _str_naslov,
_str_mesg, true);
progress.show();
}
#Override
protected void onPostExecute(String s) {
//super.onPostExecute(s);
progress.dismiss();
}
#Override
protected String doInBackground(Object... params) {
try {
Thread.sleep(2000);
} catch (InterruptedException e) {
e.printStackTrace();
}
HttpClient httpClient = new DefaultHttpClient();
HttpGet httpRequest = new HttpGet(Config.url_get_ocitanja_async_taks);
String odg="";
try {
HttpResponse response = httpClient.execute(httpRequest);
HttpEntity entity = response.getEntity();
odg = EntityUtils.toString(entity, HTTP.UTF_8);
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return odg;
}
As you can see, I put a 2 seconds sleep time to simulate a large dataset. I call this AsyncTask in my Fill_in_Data activity:
GetOcitanja asyncTask=new GetOcitanja(Fill_in_phone.this, "a","b");
asyncTask.execute();
String response="";
try {
response= asyncTask.get();
} catch (InterruptedException e1) {
e1.printStackTrace();
} catch (ExecutionException e1) {
e1.printStackTrace();
}
}
I followed a few solutions from SO and nothing helped. What did I do wrong?

response= asyncTask.get();
remove that.
You have already an asyncTask.execute().
Handle the response in onPostExecute().
I asked you before how you called your async task as i supposed you used .get(). You are calling it twice and are only showing that now.

Place your ProgressDialog in onPreExecute, sample code below:
private ProgressDialog pdia;
#Override
protected void onPreExecute(){
super.onPreExecute();
pdia = new ProgressDialog(yourContext);
pdia.setMessage("Loading...");
pdia.show();
}
#Override
protected void onPostExecute(String result){
super.onPostExecute(result);
pdia.dismiss();
}
https://stackoverflow.com/a/25998219/5202007

public GetOcitanja(Activity context, String str_naslov, String str_message){
this._context = context;
this._str_naslov = str_naslov;
this._str_mesg = str_message;
progressDialog = new ProgressDialog(_context);
progressDialog.setTitle("Progress");
}
can you try create progress dialog inside constructor

httpclient does not work in asynctask

i am using httpclient in asynctask doInBackground for get my php-session value
this is my Java codes:
package com.example.example;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import org.json.JSONException;
import org.json.JSONObject;
import android.app.Activity;
import android.app.ProgressDialog;
import android.os.AsyncTask;
import android.os.Bundle;
public class MainActivity extends Activity {
private String aktuell_date_u,set_check;
public static DefaultHttpClient client = new DefaultHttpClient();
private ProgressDialog pd;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.login_main);
pd = new ProgressDialog(MainActivity.this);
pd.setMessage("bitte warten...");
pd.show();
new get_sessions();
}
private class get_sessions extends AsyncTask<String, Void, JSONObject> {
#Override
protected JSONObject doInBackground(String... arg0) {
HttpGet post = new HttpGet("http://www.example.com/getsessions.php");
try {
HttpResponse response = client.execute(post);
BufferedReader rd = new BufferedReader(new InputStreamReader(response.getEntity().getContent()));
StringBuilder sb = new StringBuilder();
String line = "";
while ((line = rd.readLine()) != null) {
sb.append(line);
break;
}
return new JSONObject(sb.toString());
} catch (JSONException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return null;
}
protected void onPostExecute(JSONObject result){
aktuell_date_u = result.optString("aktuell_date_u").toString();
set_check = result.optString("set_check").toString();
pd.cancel();
}
}
}
and this is my php codes:
<?php
session_start();
header('content-type: aplication/json; charset=utf-8');
setcookie("cookie_test", date('U'));
$aktuell_date_u=date('U');
$_SESSION['set_check']=md5($aktuell_date_u);
echo '{"aktuell_date_u":"'.$aktuell_date_u.'","set_check":"'.$_SESSION['set_check'].'"}';
?>
the PregressDialog loads and loads ...
what i'm doing wrong, because my httpclient codes work out of doInBackground
Special thanks

You're not calling the AsyncTask's execute() method, so the AsyncTask never runs. Instead of
new get_sessions();
You need to call:
new get_sessions().execute(null);
As you're not using the arguments passed to doInBackground(), I'm not sure why you've defined them as String.
You should probably also look at some basic training on Java coding conventions and follow them - things like making Class names begin with an uppercase letter and camel casing them rather than using underscores. Following conventions makes your code easier for other people to read.

error posting data to webservice

I want to post data using JSON. But i am not able to achieve this.
This is my java code:
package com.bandapp;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import org.apache.http.HttpResponse;
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.util.EntityUtils;
import org.json.JSONArray;
import org.json.JSONObject;
import org.json.JSONTokener;
import android.app.ListActivity;
import android.app.ProgressDialog;
import android.os.AsyncTask;
import android.os.Bundle;
import android.widget.ListAdapter;
import android.widget.SimpleAdapter;
import android.widget.Toast;
public class UpcomingShow extends ListActivity {
public static final String TAG_SHOW_TITLE = "show_title";
public static final String TAG_SHOW_VENUE = "show_venue";
public static final String TAG_SHOW_DATE = "show_date";
public static final String TAG_SHOW_TIME = "show_time";
public static String URL = "http://example.com/example/example/mainAPI.php";
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.upcoming_show);
new AsyncData().execute();
}
class AsyncData extends AsyncTask<String, Void, Void> {
JSONParser jParser;
ArrayList<HashMap<String, String>> upcomingShows;
ProgressDialog pDialog;
#Override
protected void onPreExecute() {
pDialog = new ProgressDialog(UpcomingShow.this);
pDialog.setTitle("Loading....");
pDialog.setMessage("Please wait...");
pDialog.show();
super.onPreExecute();
}
#Override
protected Void doInBackground(String... args) {
// TODO Auto-generated method stub
jParser = new JSONParser();
List<NameValuePair> params = new ArrayList<NameValuePair>();
upcomingShows = new ArrayList<HashMap<String,String>>();
params.add(new BasicNameValuePair("rquest", "={"));
params.add(new BasicNameValuePair("method","band_info"));
params.add(new BasicNameValuePair("body","[{}]}"));
String res = "";
try {
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost(URL);
httppost.setEntity(new UrlEncodedFormEntity(params));
HttpResponse response = httpclient.execute(httppost);
res = EntityUtils.toString(response.getEntity());
JSONTokener t = new JSONTokener(res);
JSONArray a = new JSONArray(t);
JSONObject o = a.getJSONObject(0);
String sc = o.getString(TAG_SHOW_TITLE);
if(sc.equals("1"))
{
// posted successfully
Toast.makeText(UpcomingShow.this, sc, Toast.LENGTH_SHORT).show();
}
else
{
// error occurred
Toast.makeText(UpcomingShow.this, "Fail.", Toast.LENGTH_SHORT).show();
}
}
catch (Exception e)
{
e.printStackTrace();
}
return null;
}
protected void onPostExecute(Void result) {
super.onPostExecute(result);
if (pDialog != null && pDialog.isShowing()) {
pDialog.dismiss();
}
ListAdapter adapter = new SimpleAdapter(UpcomingShow.this, upcomingShows, R.layout.upcomingshows_row, new String[] {
TAG_SHOW_TITLE, TAG_SHOW_DATE, TAG_SHOW_TIME, TAG_SHOW_VENUE }, new int[] { R.id.textTitle, R.id.textdate,
R.id.textTime, R.id.textVenue });
setListAdapter(adapter);
}
}
}
Also i am not able to Toast any of the message that i have kept in doInBackground(). Can you please help me solving this please...

You can't toast into doInBackground() because you can't update the UIview during the thread execution ! You should to use 'onProgress' and 'publishProgress'
change :
class AsyncData extends AsyncTask<String, Void, Void>
to:
class AsyncData extends AsyncTask<String, String, Void>
and override onProgress for toast:
#Override
protected void onProgressUpdate(String... values) {
super.onProgressUpdate(values);
if (values[0] != null)
Toast.makeText(UpcomingShow.this, values[0], Toast.LENGTH_SHORT).show();
}
And into doInBackground():
if(sc.equals("1"))
{
publishProgress(sc);
}
else
{
publishProgress("Fail.");
}

if(sc.equals("1"))
{
// posted successfully
Toast.makeText(UpcomingShow.this, sc, Toast.LENGTH_SHORT).show();
}
else
{
// error occurred
Toast.makeText(UpcomingShow.this, "Fail.", Toast.LENGTH_SHORT).show();
}
Remove this code form doInBackground
You can not update your UI on do in background , you can get result in onPostExecute and able to pop up those toast .

I tried sending a post your request through Postman(google extension) and the URL you've provided responded with HTTP Status 200 but without a response message. Problem is, based on the code provided, is that you're expecting a message response from the said url. You should probably check with the server you are connecting with.

While doing AsyncTask<String, Void, Void> Task you can’t achieve Toast display in Main thread, user Log.d(“TAG”,”your-text”);
You can achieve Toast in onPostExecution()
}catch (Exception e)
{
e.printStackTrace();
}
return sc;
}
protected void onPostExecute(Void result) {
super.onPostExecute(result);
if (pDialog != null && pDialog.isShowing()) {
pDialog.dismiss();
}
if(result.equals("1"))
{
// posted successfully
Toast.makeText(UpcomingShow.this, result, Toast.LENGTH_SHORT).show();
}
else
{
// error occurred
Toast.makeText(UpcomingShow.this, "Fail.", Toast.LENGTH_SHORT).show();
}
}
}