Android: Sending a byte[] array via Http POST

Question

I am able to do a POST of a parameters string. I use the following code:

String parameters = "firstname=john&lastname=doe";
URL url = new URL("http://www.mywebsite.com");
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setDoOutput(true);
connection.setRequestProperty("Content-Type","application/x-www-form-urlencoded");
connection.setRequestMethod("POST");

OutputStreamWriter out = new OutputStreamWriter(connection.getOutputStream());
out.write(parameters);
out.flush();
out.close();
connection.disconnect();

However, I need to do a POST of binary data (which is in form of byte[]).

Not sure how to change the above code to implement it.
Could anyone please help me with this?

score 9 · Answer 1 · edited May 23 '17 at 12:10

9

Take a look here Sending POST data in Android

But use ByteArrayEntity.

byte[] content = ...
HttpPost httpPost = new HttpPost(url);
httpPost.setEntity(new ByteArrayEntity(content));           
HttpResponse response = httpClient.execute(httpPost);

edited May 23 '17 at 12:10

Community

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answered Jul 25 '12 at 22:32

Fabio Falci

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It is taking a very long time (8 sec) to execute this line "httpPost.setEntity(new ByteArrayEntity(content));" sometimes in my code. Do you have any idea why this can happen ? – insanely_sin Mar 28 '17 at 18:28

score 6 · Answer 2 · answered Jun 15 '11 at 17:59

6

You could base-64 encode your data first. Take a look at the aptly named Base64 class.

answered Jun 15 '11 at 17:59

kabuko

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+1 for the idea. Unfortunately I cannot do use Base64 since the server does not expect it. (I cannot make change to the server as it caters to many client applications) – OceanBlue Jun 16 '11 at 19:43

score 4 · Accepted Answer · edited May 23 '17 at 11:55

4

These links might be helpful:

edited May 23 '17 at 11:55

Community

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answered Jun 15 '11 at 18:09

R3D3vil

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Android: Sending a byte[] array via Http POST

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