Android making HTTP Requests

[…] is combination of some of my previous tutorials. I hope you covered these tutorials before. Android making HTTP Requests Android JSON Parsing Tutorial Android SQLite Database Tutorial Android Login and Registration […]

what is the procedure to access the “remote database of website” please help….

Hi Ravi,

How may I connect with username and password to my website’s login…?

your motherfucker, HIJO DE PUTA

fack comment……………………

This is not a tutrial, It’s an example.

Add this if not working:

StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder()

.permitAll().build();

StrictMode.setThreadPolicy(policy);

Guys can i pass a String array in the Basic name value pair..if not then can you suggest some alternatives….help!!

I downloaded your project and runs normal, but in my otros projects where the error on the line:

HttpResponse response = httpClient.execute (HttpPost);

wats the output of this example.?

Thanks for the post. I am trying to post a string array.
My code:
for(String attachment : attachments){
multipartEntity.addPart(“attachments[]”, new StringBody(attachment));
}
It is not working for me. server received full array as string( example “[“a”, “b”]” ). but I have to pas only string array (example- [“a”,”b”] ). Please help.

It’s very helpful. May know how to do the PUT and DELETE methods though

Hello Ravi. I’m trying to download the source code, but when I subscribe my e-mail I NEVER receive the confirmation in my e-mail, I already verify my spam box and tried another e-mail.

can we do it for local server in our machine

You are executing it on UIThread. Wont it throw exception and crash the APP?

where do i download this library?

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.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.json.JSONException;
import org.json.JSONObject;

hello
I found tutorial about httpclient and I have proble with httpost
how to post with url parameter

http://domain.com/api/cost?key=7867t6756&destination=89&weight=1000&origin=176
this is what i want post to url >>
key=7867t6756&destination=89&weight=1000&origin=176this my code:

DefaultHttpClient httpClient = new DefaultHttpClient();
HttpEntity httpEntity = null;
HttpResponse httpResponse = null;

if (method == POST) {
HttpPost httpPost = new HttpPost(“http://domain.com/api/cost”);

if (params != null) {

httpPost.setHeader(“Accept”, “application/x-www-form-urlencoded”);
httpPost.setHeader(“Content-type”, “application/x-www-form-urlencoded”);
httpPost.setHeader(“Referer”, “key=7867t6756&destination=89&weight=1000&origin=176”);
httpPost.setEntity(new UrlEncodedFormEntity(params));
}
httpResponse = httpClient.execute(httpPost);

Thank you

hello sir know i create an apps which is used to login for my site in device when i testing in bluestack
it work means it send the user id and password to particualar URL when i install that apps in my real device it open when i click submit button it show unfortunatly your apps has been stopped i tried in any other device but it show same problem please help how to resolved this problem .

I had this working for my localhost (wamp server), I could hit my database via a php page. Now I have hostgator and I cannot reach my php page with my URL. Does any one know how to fix this?

– No errors its like its just not hitting the server.

HttpPost httpPost = new HttpPost(“http://mydomain/login4.php”);

my lord thanks a lot
i add some in this if it cause error of sticky in higher version than put this code before set layout

StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
StrictMode.setThreadPolicy(policy);

Your tutorials are the most easy to understand tutorials in this planet. I learnt many concepts here. I want you to explain about what are web services, Different types of web services, methods used, creating a web service in java, how a web service receives request (HTTP, SOAP,REST etc. Not even one of them is understood by me), difference between a web service and servlet, how to create Database, save data in database via servelet/web service/ android application. Sorry as the list is too long. But I really liked the way you explain, and can easily understand. By the way I too live in Hyderabad

how can i post my data?
{ “OrgID”:”1″,
“UserDepartment”:”1″,
“WorkType”:”1977″,
“WorkDefinition”:”EXAMPLE_EXAMPLE”,
“Confirmed”:[
{“Confirmed”:”qaAgo/+/j/XhECIhlAo2SQ==,}
{“Confirmed”:”qaAgo/+/j/XhECIhlAo2SQ==”}],
“FileName”:””,
“FileMimeType”:””,
“FileContent”:””
}
i write this codes but i couldn’t post
public static void sendParameter(String organizationId, String departmentId, String workType, List comfirmedList, String fileName, String fileMimeType, String fileContent, String definition) {

parameterList = new ArrayList();
parameterList.add(new BasicNameValuePair(“OrgID”, organizationId));
parameterList.add(new BasicNameValuePair(“UserDepartment”, departmentId));
parameterList.add(new BasicNameValuePair(“WorkType”, workType));
parameterList.add(new BasicNameValuePair(“Confirmed”, String.valueOf(comfirmedList)));
parameterList.add(new BasicNameValuePair(“FileName”, fileName));
parameterList.add(new BasicNameValuePair(“FileMimeType”, fileMimeType));
parameterList.add(new BasicNameValuePair(“FileContent”, fileContent));
parameterList.add(new BasicNameValuePair(“WorkDefinition”, definition));
}

Thanks for put this tutorial.
but HttpClient is not working in my project for that what can i do?
Is there any library which put in gradle.build ? or package or Build Tools which i not installed ?
Thanks in advance.

Can we add progress update with this code , please email me on

hamad.kicsit@gmail.com

sir , i want to post data to server in json format using the same service handler class you have used in json parsing tutorial.. and i am getting trouble with this parameter List params can you plz help me out

Your tutorials are the best and easiest to understand.. however as httpclient is now depricated in latest android builds can you help me with this particular piece of code? I’ve tried a lot to convert this into httpurlconnection it simply doesnt work for me…

HttpClient httpClient = new DefaultHttpClient();

// Creating HTTP Post

HttpPost httpPost = new HttpPost(link);

//Name value pair created what you want to send to server

List nameValuePair = new ArrayList(2);

nameValuePair.add(new BasicNameValuePair(“Languages”,lang));

nameValuePair.add(new BasicNameValuePair(“voice”,vc));

nameValuePair.add(new BasicNameValuePair(“ex”,”execute”));

nameValuePair.add(new BasicNameValuePair(“op”,text));

nameValuePair.add(new BasicNameValuePair(“count”,count));

nameValuePair.add(new BasicNameValuePair(“speed”,speed));

//httpPost.setEntity(new UrlEncodedFormEntity(nameValuePair));

httpPost.setEntity(new UrlEncodedFormEntity(nameValuePair, “UTF-8”)); // UTF 8 added to send indic string to server

HttpResponse httpResponse = httpClient.execute(httpPost);

final int statusCode = httpResponse.getStatusLine().getStatusCode();

Log.d(“Response Status Code”,String.valueOf(statusCode));

} catch (UnsupportedEncodingException e) {

// TODO Auto-generated catch block

e.printStackTrace();

} catch (ClientProtocolException e) {

// TODO Auto-generated catch block

e.printStackTrace();

} catch (IOException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

and this is what i have coded for the httpurlconnection:

URL url = new URL(link);

urlConnection = (HttpURLConnection) url.openConnection();
urlConnection.setReadTimeout(10000);
urlConnection.setConnectTimeout(15000);
urlConnection.setRequestMethod(“POST”);
urlConnection.setDoInput(true);
urlConnection.setDoOutput(true);
urlConnection.setChunkedStreamingMode(0);
urlConnection.setInstanceFollowRedirects(false);
urlConnection.setRequestMethod(“POST”);

Map param = new LinkedHashMap();
param.put(“Languages”, lang);

param.put(“voice”,vc);
param.put(“ex”,”execute”);

param.put(“op”,nt);
param.put(“count”,count);
param.put(“speed”,speed);

StringBuilder postData = new StringBuilder();
for (Map.Entry param1 : param .entrySet()) {
if (postData.length() != 0) postData.append(‘&’);
postData.append(URLEncoder.encode(param1.getKey(), “UTF-8”));
postData.append(‘=’);
postData.append(URLEncoder.encode(String.valueOf(param1.getValue()), “UTF-8”));
}
byte[] postDataBytes = postData.toString().getBytes(“UTF-8”);
int postDataLength = postDataBytes.length;

urlConnection.setRequestProperty( “charset”, “utf-8”);
urlConnection.setRequestProperty( “Content-Length”, Integer.toString( postDataLength ));
urlConnection.setUseCaches(false);
urlConnection.getOutputStream().write(postDataBytes);
Log.d(“getoutputstream”, postDataBytes.toString());

InputStream in = new BufferedInputStream(urlConnection.getInputStream());
// readStream(in);
InputStreamReader isr = new InputStreamReader(in);
BufferedReader br = new BufferedReader(isr);
str = br.readLine();

Log.d(“output of str”,str);
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
urlConnection.disconnect();
}

Please tell me what I am doing wrong?

can you write android-making-http-requests using httpurlconnection ?

I am trying to add header :

httpPost.setHeader(“deviceid”, “358978060711939”);
httpPost.setHeader(“token”, “eyJ0eXOTI0ODkyM30.PAuNrDee1vi74”);

but I am getting error:
Authentication error: Unable to respond to any of these challenges.

How can I add header?

Thnks for Tutorial.
but i want to send Object in Name Value Pairs.. how i can send..
ex.
nameValuePair.add(new BasicNameValuePair(“email”, “user@gmail.com”));
bt i want
Inform infrm= new Inform;
nameValuePair.add(new BasicNameValuePair(“inform”, inform));
can i send Object Refernce like this. plz sir help me

I am trying for a HttpRequest

I used the following program to import the class files

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;

I am getting cannot resolve HttpClient

i want to get the response and convert that into pdf file how can i do tha….my server actually creates pdf file of the data which i am sending throught post method using fpdf library .

Or you can just use this awesome library

https://github.com/studioidan/HttpAgent

Hi Ravi good tutorial

I have an API developed in nodeJS, Express and Mongodb that i want to connect to my android, so can i use Apache to do the transaction between my API?

Thankx

next time please do mention which all jars to be added. I am facing so many errors and still google-ling to fix them 🙁

hie sir i want to post data on json for that i need to append my url with id but its not working can u help me . plz show any exmple of appending url.

Hi,

I want to consume a RST API for instance.service-now.com

Below is the code that i have

package com.example.android.checkapi;

import android.app.ProgressDialog;
import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;
import com.loopj.android.http.AsyncHttpClient;
import com.loopj.android.http.AsyncHttpResponseHandler;
import com.loopj.android.http.RequestParams;

import org.json.JSONException;
import org.json.JSONObject;

import cz.msebera.android.httpclient.Header;

public class MainActivity extends AppCompatActivity {

// Progress Dialog Object
ProgressDialog prgDialog;
// Error Msg TextView Object
TextView errorMsg;
// Email Edit View Object
EditText emailET;
// Passwprd Edit View Object
EditText pwdET;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// Find Error Msg Text View control by ID
errorMsg = (TextView)findViewById(R.id.login_error);
// Find Email Edit View control by ID
emailET = (EditText)findViewById(R.id.loginEmail);
// Find Password Edit View control by ID
pwdET = (EditText)findViewById(R.id.loginPassword);
// Instantiate Progress Dialog object
prgDialog = new ProgressDialog(this);
// Set Progress Dialog Text
prgDialog.setMessage(“Please wait…”);
// Set Cancelable as False
prgDialog.setCancelable(false);
}

/**
* Method gets triggered when Login button is clicked
*
* @param view
*/

public void loginMain(View view){

// Get Email Edit View Value
String email = emailET.getText().toString();
// Get Password Edit View Value
String password = pwdET.getText().toString();
// Instantiate Http Request Param Object
RequestParams params = new RequestParams();
// When Email Edit View and Password Edit View have values other than Null
/**if(Utility.isNotNull(email) && Utility.isNotNull(password)){
// When Email entered is Valid
if(Utility.validate(email)){*/
// Put Http parameter username with value of Email Edit View control
params.put(“username”, email);
// Put Http parameter password with value of Password Edit Value control
params.put(“password”, password);
// Invoke RESTful Web Service with Http parameters
invokeWS(params);
//}
}

/**
* Method that performs RESTful webservice invocations
*
* @param params
*/

public void invokeWS(RequestParams params){
// Show Progress Dialog
prgDialog.show();
// Make RESTful webservice call using AsyncHttpClient object
AsyncHttpClient client = new AsyncHttpClient();
client.get(”

https://instance.service-now.com/api/now/table/problem?sysparm_limit=1‘

“,params ,new AsyncHttpResponseHandler() {

public void onSuccess(int status_code, Header[] headers, byte[] responseBody) {

// Hide Progress Dialog
prgDialog.hide();
try {
// JSON Object
JSONObject obj = new JSONObject(String.valueOf(responseBody));
// When the JSON response has status boolean value assigned with true
if (obj.get(“status_code”).equals(“200”)){
Toast.makeText(getApplicationContext(), “You are successfully logged in!”, Toast.LENGTH_LONG).show();
// Navigate to Home screen
navigatetoHomeActivity();
}
// Else display error message
else{
errorMsg.setText(obj.getString(“error_msg”));
Toast.makeText(getApplicationContext(), obj.getString(“error_msg”), Toast.LENGTH_LONG).show();
}
} catch (JSONException e) {
// TODO Auto-generated catch block
Toast.makeText(getApplicationContext(), “Error Occured [Server’s JSON response might be invalid]!”, Toast.LENGTH_LONG).show();
e.printStackTrace();

}
}
// When the response returned by REST has Http response code other than ‘200’
@Override
public void onFailure(int status_code, Header[] headers, byte[] responseBody, Throwable error) {
// Hide Progress Dialog
prgDialog.hide();
// When Http response code is ‘404’
if(status_code == 404){
Toast.makeText(getApplicationContext(), “Requested resource not found”, Toast.LENGTH_LONG).show();
}
// When Http response code is ‘500’
else if(status_code == 500){
Toast.makeText(getApplicationContext(), “Something went wrong at server end”, Toast.LENGTH_LONG).show();
}
// When Http response code other than 404, 500
else{
Toast.makeText(getApplicationContext(), “Unexpected Error occcured! [Most common Error: Device might not be connected to Internet or remote server is not up and running]”, Toast.LENGTH_LONG).show();
}
}
});

}
/**
* Method which navigates from Login Activity to Home Activity
*/
public void navigatetoHomeActivity(){
Intent homeIntent = new Intent(getApplicationContext(),HomeActivity.class);
homeIntent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
startActivity(homeIntent);
}
}

I get the error : Unexpected Error occcured! [Most common Error: Device might not be
connected to Internet or remote server is not up and running]”

I have used the below in manifest file

What could i be doing wrong ?

Please help

Using HttpPost and NameValuePair is deprecated. So what should we use now?

Hi,

Great post, are you planning to write sth about xml/json parsing ?

can work on android 1.5 version?

Coincidentally, I am implementing a project to simplify the HTTP request model for Android. It’s an open source project that you can find here:
https://github.com/hrj/SafeNet

Hi,

I was trying to implement similar code to log in https page and display response content in webView but it seems to fail? have you any idea why?

StrictMode is enabled by default in Android 3.0 and above. Hence, this code might not work. You have to do this in a separate Thread or even better an AsyncTask.

i had a doubt about making http requests to gmail…
my app stores the login details of gmail account.
wat i wanna do is whn user clicks on the login , it must automatically login into gmail & show his inbox in the browser.

m really new to android…please help

I was getting errors from debugger until I added

in my AndroidManifest.xml.

dear ravi this is only post the data right how can i give read the data in smae file. like sucess message.

hi Ravi i tried ur code but it doesnt work and keeps giving an error, i also added a uses-permission for the internet , but it still gives me an error , kindly suggest a solution

hello Ravi i downloaded the source code and it did not work
the app suddenly crashes when i ht the register or login button

hi ravi thx for this Example, i downloaded the source code and it did not work it crash i just want to know do i have to change this element with my real @email and password so the exampel will work ?
i didn t get how what i have to expect like a response for this application §??
this is what i understand : the application wil send an email to my email box ? right !!! pls & thx
SORRY I KNOW I HAVE MANY qst but i m new with android

Hi ravi
i tried to adapt this code to my applicating, for example, instead of sending the paametre email with its value i send with the Http request the city parametre with the name of the city that i want to show its data as a value, but i always get the data of the default city which is casablanca and not the data of the targeted city

can you help me please abd thanks

Hi Ravi,
I want source code for calculating total price for all shopping items and to display them in a separate list,will you please help me,since i’m a beginner