Base64 encode data: Difference between revisions

<p>

Java offers the <code>Base64</code> class, which includes both the <code>Encoder</code> and <code>Decoder</code> classes.<br />

The implementation supports RFC 4648 and RFC 2045.

</p>

<p>

The usage is very simple, supply a <code>byte</code> array, and it will return, either an encoded <code>byte</code> array, or

an ISO 8859-1 encoded <code>String</code>.

</p>

<syntaxhighlight lang="java">

import java.io.FileInputStream;

import java.io.IOException;

import java.util.Base64;

</syntaxhighlight>

<syntaxhighlight lang="java">

String encodeFile(String path) throws IOException {

try (FileInputStream stream = new FileInputStream(path)) {

byte[] bytes = stream.readAllBytes();

return Base64.getEncoder().encodeToString(bytes);

}

}

</syntaxhighlight>

<p>

The result appears to be slightly different than some other language implementations, so I imagine the image has changed.<br />

It's a total of 20,116 bytes, so here's a shortened output.

</p>

<pre>

AAABAAMAMDAAAAEAIACoJQAANgAAACAgAAABACAAqBAAAN4lAAAQEAAAAQAgAGgEAACGNgAAKAAA

ADAAAABgAAAAAQAgAAAAAAAAJAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA

...

wv//AMH/hAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAPw/AAD8PwAA/D8AAIQhAACH4QAAh+EAAIQh

AAD8PwAA/D8AAIQhAACH4QAAh+EAAIQhAAD8PwAA/D8AAPw/AAA=

</pre>

<br />

Althernately<br />