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Send file using POST from a Java

I am trying to send file using java, i have a existing python which is working which needs to be converted to java.
Below is my python code,
with io.open('test.text', 'rb') as f:
r = requests.request("POST",'http://my_url/post', data=f)
My java code
HttpURLConnection httpUrlConnection = null;
URL url = new URL("http://my_url/post");
httpUrlConnection = (HttpURLConnection) url.openConnection();
httpUrlConnection.setRequestMethod("POST");
Now i am not sure how to pass the file to the post request

import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.utils.URIBuilder;
import org.apache.http.concurrent.FutureCallback;
import org.apache.http.entity.FileEntity;
import org.apache.http.impl.nio.client.CloseableHttpAsyncClient;
import org.apache.http.impl.nio.client.HttpAsyncClients;
import java.io.File;
import java.net.URI;
import java.net.URISyntaxException;
public class PostFile {
public static void main(String[] aaa) throws URISyntaxException{
final URI uri = new URIBuilder("http://httpbin.org/post")
.build();
HttpPost request = new HttpPost(uri);
File f = new File("file.txt");
request.setEntity(new FileEntity(f));
CloseableHttpAsyncClient client = HttpAsyncClients.custom().build();
client.start();
client.execute(request, new FutureCallback<HttpResponse>() {
#Override
public void completed(HttpResponse httpResponse) {
System.out.println("completed: " + httpResponse);
}
#Override
public void failed(Exception e) {
System.out.println("failed");
}
#Override
public void cancelled() {
System.out.println("cancelled");
}
});
}
}
Try this

How to Retrieve Live Currency Information from xml file in Server

I want to parse an xml file of this form from a url into my android application.
<ArrayOfCurrency xmlns:i="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://schemas.datacontract.org/2004/07/MobileAssignmentApi.Models">
<Currency>
<Buy>21.19573</Buy>
<CurrencyId>53</CurrencyId>
<Name>USD/MXN</Name>
<PipMultiplier>10000</PipMultiplier>
<Sell>21.15679</Sell>
</Currency>
<Currency>
<Buy>1.46806</Buy>
<CurrencyId>22</CurrencyId>
<Name>EUR/NZD</Name>
<PipMultiplier>10000</PipMultiplier>
<Sell>1.46395</Sell>
</Currency>
<Currency>
<Buy>1.34658</Buy>
<CurrencyId>15</CurrencyId>
<Name>EUR/CAD</Name>
<PipMultiplier>10000</PipMultiplier>
<Sell>1.3445</Sell>
</Currency>
.
.
.
</ArrayOfCurrency>
It is an array of currencies.
After a lot of effort i managed to parse the xml file into a string into my application.
The string have now the following form.
[{"currencyId":53,"buy":21.23042,"sell":21.1921,"name":"USD/MXN","pipMultiplier":10000},{"currencyId":22,"buy":1.50225,"sell":1.49891,"name":"EUR/NZD","pipMultiplier":10000},{"currencyId":15,"buy":1.38201,"sell":1.38083,"name":"EUR/CAD","pipMultiplier":10000},{"currencyId":62,"buy":0.69619,"sell":0.69404,"name":"NZD/CHF","pipMultiplier":10000},{"currencyId":19,"buy":80.085,"sell":79.968,"name":"NZD/JPY","pipMultiplier":100},{"currencyId":13,"buy":1.23727,"sell":1.23613,"name":"GBP/CHF","pipMultiplier":10000},{"currencyId":16,"buy":0.95424,"sell":0.95167,"name":"AUD/CAD","pipMultiplier":10000},{"currencyId":5,"buy":1.00469,"sell":1.00414,"name":"USD/CHF","pipMultiplier":10000},{"currencyId":1,"buy":122.014,"sell":121.839,"name":"EUR/JPY","pipMultiplier":100},{"currencyId":60,"buy":0.9092,"sell":0.90615,"name":"NZD/CAD","pipMultiplier":10000},{"currencyId":97,"buy":30.806,"sell":30.793,"name":"TRY/JPY","pipMultiplier":100},{"currencyId":10,"buy":0.68269,"sell":0.6823,"name":"NZD/USD","pipMultiplier":10000},{"currencyId":23,"buy":1.61316,"sell":1.61245,"name":"GBP/CAD","pipMultiplier":10000},{"currencyId":9,"buy":1.31115,"sell":1.31023,"name":"USD/CAD","pipMultiplier":10000},{"currencyId":3,"buy":1.21594,"sell":1.21552,"name":"GBP/USD","pipMultiplier":10000},{"currencyId":27,"buy":1.75536,"sell":1.7494,"name":"GBP/NZD","pipMultiplier":10000},{"currencyId":63,"buy":3.6378,"sell":3.62206,"name":"USD/TRY","pipMultiplier":10000},{"currencyId":64,"buy":3.83117,"sell":3.81819,"name":"EUR/TRY","pipMultiplier":10000},{"currencyId":28,"buy":0.73074,"sell":0.72814,"name":"AUD/CHF","pipMultiplier":10000},{"currencyId":50,"buy":9.54563,"sell":9.51557,"name":"EUR/SEK","pipMultiplier":10000},{"currencyId":18,"buy":87.091,"sell":86.919,"name":"CAD/JPY","pipMultiplier":100},{"currencyId":14,"buy":1.43031,"sell":1.4289,"name":"EUR/AUD","pipMultiplier":10000},{"currencyId":8,"buy":0.71693,"sell":0.7154,"name":"AUD/USD","pipMultiplier":10000},{"currencyId":17,"buy":83.97,"sell":83.811,"name":"AUD/JPY","pipMultiplier":100},{"currencyId":11,"buy":0.84385,"sell":0.84329,"name":"EUR/GBP","pipMultiplier":10000},{"currencyId":4,"buy":115.641,"sell":115.555,"name":"USD/JPY","pipMultiplier":100},{"currencyId":61,"buy":0.75641,"sell":0.75508,"name":"CAD/CHF","pipMultiplier":10000},{"currencyId":20,"buy":1.67121,"sell":1.66758,"name":"GBP/AUD","pipMultiplier":10000},{"currencyId":76,"buy":1171.7,"sell":1170.674,"name":"XAU/USD","pipMultiplier":100},{"currencyId":6,"buy":142.45,"sell":142.188,"name":"GBP/JPY","pipMultiplier":100},{"currencyId":2,"buy":1.04081,"sell":1.03929,"name":"EUR/USD","pipMultiplier":10000},{"currencyId":54,"buy":13.77633,"sell":13.70746,"name":"USD/ZAR","pipMultiplier":10000},{"currencyId":7,"buy":1.05845,"sell":1.05868,"name":"EUR/CHF","pipMultiplier":10000},{"currencyId":52,"buy":8.53823,"sell":8.51386,"name":"USD/NOK","pipMultiplier":10000},{"currencyId":48,"buy":9.0615,"sell":9.03791,"name":"USD/SEK","pipMultiplier":10000},{"currencyId":12,"buy":113.73,"sell":113.454,"name":"CHF/JPY","pipMultiplier":100},{"currencyId":21,"buy":1.03599,"sell":1.03438,"name":"AUD/NZD","pipMultiplier":10000},{"currencyId":51,"buy":8.99332,"sell":8.96375,"name":"EUR/NOK","pipMultiplier":10000},{"currencyId":150,"buy":6.7165,"sell":6.7144,"name":"USD/CNH","pipMultiplier":1000},{"currencyId":77,"buy":15.142,"sell":15.112,"name":"XAG/USD","pipMultiplier":100},{"currencyId":93,"buy":7.182,"sell":7.129,"name":"ZAR/JPY","pipMultiplier":100}]
using the following code:
import android.os.AsyncTask;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.URLConnection;
public class MainActivity extends AppCompatActivity {
String str = "http://massignment.zulutrade.com/api/rates";
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
new AsyncTaskClass().execute(str);
}
class AsyncTaskClass extends AsyncTask<String, Void,String > {
private Exception exception;
protected String doInBackground(String ...params) {
URLConnection connection = null;
BufferedReader reader = null;
try {
URL url = new URL(str);
connection = url.openConnection();
connection.setDoOutput(true);
reader = new BufferedReader(new InputStreamReader(url.openStream()));
String line = "";
StringBuilder builder = new StringBuilder();
int i=0;
while ((line = reader.readLine()) != null) {
builder.append(line+"\n");
// Log.w("Response ", "> " + line );
i++;
}
String xml = builder.toString();
}
catch( IOException e) {
e.printStackTrace();
}
return "0k";
}
protected void onPostExecute() {
}
}
}
I need to parse that xml/string to its contents.
Any idea how can i do that parsing?

Assuming that your code is in Java - there are some good XML parsers available. You may want to use one of them to parse your XML.

Connecting JIRA restapi with java

I am coding using Jira RestApi with Java and I am unable to complete the task. Can anyone help me to solve this? I am unable to call the rest api here
import static java.nio.charset.StandardCharsets.*;
package jira.rest.api;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.net.HttpURLConnection;
import java.net.URI;
import java.nio.charset.Charset;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.List;
import org.apache.http.HttpResponse;
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.apache.http.message.BasicNameValuePair;
import com.sun.jna.platform.win32.COM.TypeLibUtil.IsName;
public class JiraManager {
private final String m_BaseUrl = "http://localhost.:8080/rest/api/latest/";
private String m_Username;
private String m_Password;
public JiraManager(String username, String password) {
m_Username = username;
m_Password = password;
}
#SuppressWarnings("deprecation")
public void RunQuery() throws ClientProtocolException,
IOException {
String data = null;
String argument = null;
String method = "GET";
String url = String.format("{0}{1}/", m_BaseUrl, "project");
if (argument != null) {
url = String.format("{0}{1}/", url, argument);
}
HttpClient client = new DefaultHttpClient();
HttpPost post = new HttpPost(m_BaseUrl);
HttpResponse response = client.execute(post);
BufferedReader rd = new BufferedReader(new InputStreamReader(response.getEntity().getContent()));
String line = "";
while ((line = rd.readLine()) != null) {
System.out.println(line);
}
}
private String GetEncodedCredentials() {
String mergedCredentials = String.format("{0}:{1}", m_Username,
m_Password);
byte[] byteCredentials = mergedCredentials.getBytes(Charset
.forName("UTF-8"));
String val = "";
try {
val = new String(byteCredentials, "UTF-8");
} catch (UnsupportedEncodingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return val;
}
}
My main class calls the rest api using the following code:
package jira.rest.api;
import java.io.IOException;
import org.apache.http.client.ClientProtocolException;
public class main {
public main() {
// TODO Auto-generated constructor stub
}
public static void main(String[] args) throws ClientProtocolException,
IOException {
// TODO Auto-generated method stub
String username = "sbodhuluri";
String password = "Quad#2014";
JiraManager manager = new JiraManager(username, password);
manager.RunQuery();
System.out.println("Hello and welcome to a Jira Example application!");
}
}

can't split json string as parameter in jsonarray

I have This code and I tried to getting items from this string
but it's failed
I have used eclipse IDE
I have parsing the json string from remote host
package selectDB;
import java.io.*;
import java.net.URL;
import java.net.URLConnection;
import java.sql.*;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Timer;
import java.util.TimerTask;
import org.json.simple.JSONArray;
import org.json.simple.JSONObject;
import org.json.simple.parser.JSONParser;
import org.json.simple.parser.ParseException;
public class selectDB
{
public static void main(String[] args) throws IOException, ParseException
{
String line;
String s = "";
URL u = new URL("http://192.168.3.1/android/select.php");
URLConnection c = u.openConnection();
InputStream r = c.getInputStream();
BufferedReader reader = new BufferedReader(new InputStreamReader(r));
for(; (line = reader.readLine()) != null;)
{
s+=line;
}
System.out.println(s);
try{
JSONObject jObject = new JSONObject(s);
String projecname=(String) jObject.get("name");
System.out.print(projecname);
}catch(Exception e)
{}
}
}
the result Json string is like this
{"result" : "true" , "messages" : [{"id":"866343023633578","latitute":"27","longitude":"31","number_phone":"01113171374"},{"id":"352168066354050","latitute":"27","longitude":"31","number_phone":"202222"},{"id":"50","latitute":"50","longitude":"100","number_phone":"50"},{"id":"110","latitute":"50","longitude":"50","number_phone":"110"},{"id":"120","latitute":"27","longitude":"31","number_phone":"120"},{"id":"130","latitute":"28","longitude":"29","number_phone":"120"},{"id":"140","latitute":"30","longitude":"40","number_phone":"140"},{"id":"800","latitute":"60","longitude":"30","number_phone":"800"},{"id":"353629054230064","latitute":"70","longitude":"80","number_phone":"120"}]}
please help me
thanks

You have to parse the json string into JSONObject using JSONParser
You cannot simply parameterise JSONObject with a string.
So you have to do:
JSONParser parser = new JSONParser();
JSONObject jObject=(JSONObject)parser.parse(jsonstr);
String projecname=(String) jObject.get("name");

Execution stops automatically at getOutputStream() function Push notification using servlets

I have a problem while getting a push notification on the server side. I am using C2DM sever connection to achieve the push notification. Its working fine on android but not in the Java Servecr. I'm able to get the registration ID and authentication code but the handling stops when it comes to the line:
OutputStream out = conn.getOutputStream();
It does not throw anything, just stops.
If anyone has a solution for this then please guide me. I am adding the whole code so you can go through and tell me where I'm wrong in getting the result.
import org.apache.http.client.methods.HttpPost;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLConnection;
import java.net.URLEncoder;
import java.util.ArrayList;
import java.util.List;
import javax.net.ssl.HttpsURLConnection;
import javax.print.DocFlavor.INPUT_STREAM;
import org.apache.http.HttpClientConnection;
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.DefaultHttpClientConnection;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;
public class Server {
private static String key=null;
// private final static String AUTH = "authentication";
private static final String UPDATE_CLIENT_AUTH = "Update-Client-Auth";
public static final String PARAM_REGISTRATION_ID = "registration_id";
public static final String PARAM_DELAY_WHILE_IDLE = "delay_while_idle";
public static final String PARAM_COLLAPSE_KEY = "collapse_key";
private static final String UTF8 = "UTF-8";
private static String Authcode = null;
// Registration is currently hardcoded
private final static String YOUR_REGISTRATION_STRING = "reg id";
public void getAuthentification() {
System.out.println("check");
//HttpPost post = new HttpPost("http://www.google.com/accounts/ClientLogin");
try {
System.getProperties().put("proxySet", true);
System.getProperties().put("proxyHost","proxy" );
System.getProperties().put("proxyPort","8080");
System.out.println("getAuthentication method called****************************");
URL url=new URL("https://www.google.com/accounts/ClientLogin");
URLConnection connection=url.openConnection();
connection.setDoOutput(true);
HttpURLConnection conn=(HttpURLConnection)connection;
conn.setRequestMethod("POST");
conn.setDoInput(true);
conn.setDoOutput(true);
conn.setUseCaches(true);
StringBuilder content = new StringBuilder();
content.append("Email=").append("xyz#gmail.com");
content.append("&Passwd=").append("asdfgt");
content.append("&service=").append("ac2dm");
content.append("&source=").append("MY_APP-V0.1");
content.append("&accountType=").append("HOSTED_OR_GOOGLE");
OutputStream out = conn.getOutputStream();
out.write(content.toString().getBytes("UTF-8"));
out.close();
int res = conn.getResponseCode();
System.out.println(res + "Success");
StringBuffer resp = new StringBuffer();
if(res == HttpsURLConnection.HTTP_OK){
InputStream in = conn.getInputStream();
BufferedReader rd = new BufferedReader(new InputStreamReader(in));
String line = "";
while ((line = rd.readLine()) != null) {
System.out.println(line);
System.out.println("inside");
if (line.startsWith("Auth=")) {
Authcode = line.substring(5);
resp.append(line.substring(5));
System.out.println(line.substring(5));
System.out.println("something to be done here..");
}
}
rd.close();
}
}
}
public void sendMessage() {
try {
System.out.println(YOUR_REGISTRATION_STRING);
System.out.println("Authcode = " + Authcode);
System.getProperties().put("proxySet", true);
System.getProperties().put("proxyHost","proxy" );
System.getProperties().put("proxyPort","8080");
URL url1 = new URL("https://android.apis.google.com/c2dm/send");
System.out.println("here2.5");
HttpURLConnection conn1 = (HttpURLConnection) url1.openConnection();
System.out.println("here2.6");
conn1.setDoInput(true);
conn1.setDoOutput(true);
conn1.setUseCaches(false);
conn1.setRequestMethod("POST");
conn1.setRequestProperty("Content-Type","application/x-www-form-urlencoded");
conn1.setRequestProperty("Authorization", "GoogleLoginauth="+ Authcode);
System.out.println("here2.7");
OutputStream out = conn1.getOutputStream();
System.out.println("send Message method.");
String auth_key="n/a";
if(key!=null) {
auth_key=Authcode;
}
System.out.println("here");
// Send a sync message to this Android device.
StringBuilder postDataBuilder = new StringBuilder();
postDataBuilder.append(PARAM_REGISTRATION_ID)
.append("=").append(YOUR_REGISTRATION_STRING);
System.out.println("here1");
postDataBuilder.append("&").append(PARAM_COLLAPSE_KEY)
.append("=").append("0");
System.out.println("here2");
postDataBuilder.append("&").append("data.payload")
.append("=").append(URLEncoder.encode("Lars war hier", UTF8));
byte[] postData = postDataBuilder.toString().getBytes(UTF8);
conn1.setRequestProperty("Content-Length",
Integer.toString(postData.length));
// Hit the dm URL.
System.out.println("out created");
out.write(postData);
System.out.println("data written");
out.close();
System.out.println("here3");
int responseCode = conn1.getResponseCode();
System.out.println(String.valueOf(responseCode));
// Validate the response code
if (responseCode == 401 || responseCode == 403) {
// The token is too old - return false to retry later, will
// fetch the token
// from DB. This happens if the password is changed or token
// expires. Either admin
// is updating the token, or Update-Client-Auth was received by
// another server,
// and next retry will get the good one from database.
System.out.println("C2DM, Unauthorized - need token");
}
} catch (Exception ignore) {
// the editor that corrected the indentation of the code could not find any code here so he closed all methods to have a syntactically correct class.
}
}
}

Make sure that you are posting message to url from background thread not from the UI thread.
I hope after this change it will work. Good Luck!!!