Send Byte array as file in using http client in java

Question

We have byte array of file and we want to upload it as file. FileBody only gets File as parameter but we have a array of bytes.

One solution is to save byte array into file and then send it but it is not appropriate for me.

byte b[]= new byte[1000];
//fill b
MultipartEntity form = new MultipartEntity();
form.addPart("file", new FileBody(/* b? */));

thanks.

Arun P Johny · Accepted Answer · 2013-03-14 10:11:11Z

11

You can do something like

HttpClient client=null;
byte b[]= new byte[1000];
MultipartEntity form = new MultipartEntity();
ContentBody cd = new InputStreamBody(new ByteArrayInputStream(b), "my-file.txt");
form.addPart("file", cd);

HttpEntityEnclosingRequestBase post = new HttpPost("");//If a PUT request then `new HttpPut("");`
post.setEntity(form);
client.execute(post);

answered Mar 14, 2013 at 10:11

Arun P Johny

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2 Comments

Arun P Johny Over a year ago

which is the version used? I've used 4.0.1

Arun P Johny Over a year ago

Any way, he can use a InputStreamBody based on the syntax of the version used

Frédéric Chopin · Accepted Answer · 2015-04-13 19:47:38Z

6

You can use ByteArrayBody instead InputStreamBody or FileBody.

HttpClient client=null;
byte b[]= new byte[1000];
MultipartEntity form = new MultipartEntity();
ContentBody cd = new ByteArrayBody(b, "my-file.txt");
form.addPart("file", cd);

HttpEntityEnclosingRequestBase post = new HttpPost("");
post.setEntity(form);
client.execute(post);

answered Apr 13, 2015 at 19:47

Frédéric Chopin

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