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Download Binary file from SOAP API using Javacode

I am using the below Java code to download the response from SOAP API. Soap API response contains Binary Data stream file. I am able to get the whole response with Binary data. I would need to download only Binary attachment file alone from Soap API.
Output:
enter image description here
Java code
String url = "https://services-sd02.drivecam.com/DCSubmission/EventFileStreamingService.svc";
URL obj = new URL(url);
HttpURLConnection con = (HttpURLConnection) obj.openConnection();
con.setRequestMethod("POST");
con.setRequestProperty("Content-Type", "text/xml");
con.setRequestProperty("SOAPAction",
"http://DriveCam.com/Services/IEventFileStreamingService/GetEventFileById");
String xml = "Input Xml";
con.setDoOutput(true);
DataOutputStream wr = new DataOutputStream(con.getOutputStream());
wr.writeBytes(xml);
wr.flush();
wr.close();
String responseStatus = con.getResponseMessage();
System.out.println(responseStatus);
BufferedReader in = new BufferedReader(new InputStreamReader(con.getInputStream()));
String inputLine;
StringBuffer response = new StringBuffer();
while ((inputLine = in.readLine()) != null) {
response.append(inputLine);
}
in.close();
String responseString = response.toString();
String out = responseString;
byte[] stream = out.getBytes();
FileOutputStream out1 = new FileOutputStream("P:/Informatica/data/zd_misc/TgtFiles/Binary_File");
out1.write(stream);
out1.close();
}
}

Sending a POST request to a server

I am trying to create my first android application that utilizes a REST api. My api is written in Node.JS and has already been tested using Postman, however, I am having trouble sending JSON data to my api.
#Override
protected String doInBackground(String... params) {
String data = "";
String urlName = params[0];
HttpURLConnection httpURLConnection = null;
try {
httpURLConnection = (HttpURLConnection) new URL(urlName).openConnection();
httpURLConnection.setRequestMethod("POST");
httpURLConnection.setDoOutput(true);
DataOutputStream wr = new DataOutputStream(httpURLConnection.getOutputStream());
wr.writeBytes(params[1]);
wr.flush();
wr.close();
InputStream in = httpURLConnection.getInputStream();
InputStreamReader inputStreamReader = new InputStreamReader(in);
int inputStreamData = inputStreamReader.read();
while (inputStreamData != -1) {
char current = (char) inputStreamData;
inputStreamData = inputStreamReader.read();
data += current;
}
} catch (Exception e) {
e.printStackTrace();
} finally {
if (httpURLConnection != null) {
httpURLConnection.disconnect();
}
}
return data;
}
I always reach the line that declares and initializes my DataOutputSteam and doesn't execute the code. I am not even getting a log that my Virtual device has visited my server at all.
I have included in the manifest XML both of these already.
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.INTERNET" />

Based on your logs, you're hitting a NetworkOnMainThreadException and that's preventing the network request from being executed (it's going into your catch block instead). This suggests you aren't calling your AsyncTask correctly - ensure that you're calling execute instead of calling doInBackground. See also here for more information on this general pattern.

Try this, it is for POST method that accept 2 parameter email and password.
Change it based on your requirement
URL url = new URL(Login_url);
HttpURLConnection conn = (HttpURLConnection) new URL(urlName).openConnection();
conn.setRequestMethod("POST");
conn.setRequestProperty("Accept" , "application/json");
conn.connect();
Uri.Builder builder = new Uri.Builder()
.appendQueryParameter("email", "Your_Email")
.appendQueryParameter("password","Your_Password");
String query = builder.build().getEncodedQuery();
OutputStream os = conn.getOutputStream();
BufferedWriter writer = new BufferedWriter(
new OutputStreamWriter(os, "UTF-8"));
writer.write(query);
writer.flush();
writer.close();
os.close();
code = conn.getResponseCode();
Log.e("Result", code + "");
InputStream input = conn.getInputStream();
BufferedReader reader = new BufferedReader(new InputStreamReader(input));
StringBuilder result = new StringBuilder();
String line;
while ((line = reader.readLine()) != null) {
result.append(line);
}
Log.e("Result",result.toString());

Get the Response from POST request

I would like to obtain the response from a HttpsURLConnection POST request.
If I try to do the request with PostMan, I have one message as response (es: 1520). I have to save this code, but I find the method for read just the getResponseCode() (200) or getResponseMessage() ("OK"). I should use another libraries? Because in the HttpsUrlConnection method I don't find anything useful (https://docs.oracle.com/javase/7/docs/api/java/net/HttpURLConnection.html)
My code is:
HttpsURLConnection con = (HttpsURLConnection) obj.openConnection();
con.setSSLSocketFactory(sslContext.getSocketFactory());
con.setDoOutput(true);
con.setUseCaches(false);
con.setRequestMethod("POST");
con.setRequestProperty("Connection", "keep-alive");
con.setRequestProperty("Content-Type", w_AECONTYP);
con.setRequestProperty("Accept-Charset", w_AEACCCHA);
con.setRequestProperty("Accept-Encoding", w_AEACCENC);
StringBuilder postFile = new StringBuilder();
byte[] postFileBytes =w_FileToSend.getBytes("UTF-8");
con.setDoOutput(true);
try {
DataOutputStream wr = new DataOutputStream(con.getOutputStream());
wr.write(postFileBytes);
wr.flush();
wr.close();
} catch (Exception e) {
System.out.println("Connection Failed");
e.printStackTrace();
}
int responseCode = con.getResponseCode();
// get 200 code "OK"
BufferedReader in = new BufferedReader(new InputStreamReader(con.getInputStream()));
String inputLine;
StringBuffer response = new StringBuffer();
while ((inputLine = in.readLine()) != null) {
response.append(inputLine);
}
in.close();
But when arrived at the WHILE loop, it doesn't enter in the cycle.
How I can do this?
The file is in JSON format, but that isn't the problem.
I need to save that 915 code!!

You could use HttpResponse and HttpPost for getting a response from server (as well as the Response Code):
HttpResponse httpResponse = httpClient.execute(new HttpPost(URL));
InputStream inputStream = httpResponse.getEntity().getContent();
InputStreamReader inputStreamReader = new InputStreamReader(inputStream);
BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
StringBuilder stringBuilder = new StringBuilder();
String bufferedStrChunk = null;
while((bufferedStrChunk = bufferedReader.readLine()) != null){
stringBuilder.append(bufferedStrChunk);
}
// now response is in the stringBuilder.toString()
I hope this will help you.

Android HTTP Post Request doesn't work, but stock Java does?

So I have 2 codes which supposedly do the same. The one I'm using on Android however, returns the wrong HTML data. The stock Java one returns the correct data after sending the request. I have both codes here. Can you tell me (EVEN THOUGH I GAVE INTERNET PERMISSION TO ANDROID) why the Android one isn't working, while the stock Java one is working? This is the Android code:
EDIT: I FOUND THE FIX. If you're going to use a StringEntity to send such a String to the Server, you have to set the content to application/x-www-form-urlencoded. I've edited my code to show this:
public static String sendNamePostRequest(String urlString) {
HttpClient client = new DefaultHttpClient();
HttpPost post = new HttpPost(urlString);
StringBuffer sb = new StringBuffer();
try {
StringEntity se = new StringEntity(
"__EVENTTARGET=&__EVENTARGUMENT=&__VIEWSTATE=%2FwEPDwULLTE3NDM5MzMwMzRkZA%3D%3D&__EVENTVALIDATION=%2FwEWBAL%2B%2B4CfBgK52%2BLYCQK1gpH7BAL0w%2FPHAQ%3D%3D&_nameTextBox=John&_zoekButton=Zoek&numberOfLettersField=3");
se.setContent("application/x-www-form-urlencoded");
post.setEntity();
HttpResponse response = client.execute(post);
HttpEntity entity = response.getEntity();
BufferedReader br = new BufferedReader(new InputStreamReader(
entity.getContent()));
String in = "";
while ((in = br.readLine()) != null) {
sb.append(in + "\n");
}
br.close();
} catch (Exception e) {
e.printStackTrace();
}
return sb.toString();
}
This is the stock Java code:
public String sendNamePostRequest(String urlString) {
StringBuffer sb = null;
try {
String data = "__EVENTTARGET=&__EVENTARGUMENT=&__VIEWSTATE=%2FwEPDwULLTE3NDM5MzMwMzRkZA%3D%3D&__EVENTVALIDATION=%2FwEWBAL%2B%2B4CfBgK52%2BLYCQK1gpH7BAL0w%2FPHAQ%3D%3D&_nameTextBox=John&_zoekButton=Zoek&numberOfLettersField=3";
// String data = "";
URL requestUrl = new URL(urlString);
HttpURLConnection conn = (HttpURLConnection) requestUrl
.openConnection();
conn.setDoOutput(true);
conn.setDoInput(true);
conn.setRequestMethod("POST");
DataOutputStream dos = new DataOutputStream(conn.getOutputStream());
dos.writeBytes(data);
dos.flush();
BufferedReader br = new BufferedReader(new InputStreamReader(
conn.getInputStream()));
String in = "";
sb = new StringBuffer();
while ((in = br.readLine()) != null) {
sb.append(in + "\n");
}
dos.close();
br.close();
} catch (Exception e) {
e.printStackTrace();
}
return sb.toString();
}

If the data is getting to the server, you might want to see what is happening there (logs, errors, exceptions, etc.) Other than that:
use can use HttpURLConnection, so you can have the exact same code
For HttpClient, not sure whey you are encoding the entity yourself. Use NameValuePair to set parameters, and HttpClient will encode them for you (correctly).

You can use NameValuePair and UrlEncodedFormEntity:
List<BasicNameValuePair> nvps = new ArrayList<BasicNameValuePair>();
nvps.add(new BasicNameValuePair(KEY1, VALUE1));
nvps.add(new BasicNameValuePair(KEY2, VALUE2));
UrlEncodedFormEntity p_entity = new UrlEncodedFormEntity(nvps,HTTP.UTF_8);
post.setEntity(p_entity);

how to pass the parameters to the urlconnection in java/android?

i can establish a connection using HttpUrlConnection. my code below.
client = new DefaultHttpClient();
URL action_url = new URL(actionUrl);
conn = (HttpURLConnection) action_url.openConnection();
conn.setDoOutput(true);
conn.setDoInput(true);
conn.setRequestProperty("userType", "2");
conn.setRequestProperty("Content-Type",
"application/x-www-form-urlencoded");
conn.setRequestMethod(HttpPost.METHOD_NAME);
DataOutputStream ds = new DataOutputStream(conn.getOutputStream());
String content = "username=username1&password=password11";
Log.v(TAG, "content: " + content);
ds.writeBytes(content);
ds.flush();
ds.close();
InputStream in = conn.getInputStream();//**getting filenotfound exception here.**
BufferedReader reader = new BufferedReader(
new InputStreamReader(in));
StringBuilder str1 = new StringBuilder();
String line = null;
while ((line = reader.readLine()) != null) {
str1.append(line);
Log.v(TAG, "line:" + line);
}
in.close();
s = str1.toString();
getting filenotfound exception. dont know why?
else give me some suggestion to pass username and passwrod parameter to the url by code..

The HTTPClient offers a much simpler way to access http resources, when all you want to do is fetch the repsonse body:
HttpGet httpGet = new HttpGet("http://domain.com/path?var1=bla&var2=foo");
HTTPResponse reponse = httpClient.execute(httpGet);
String responseBody = EntityUtils.toString(response.getEntity());