Writing UTF-8 string to socket in Java

Question

At the moment I use

serverOutput = new DataOutputStream(socketCliente.getOutputStream());

and then

serverOutput.write(data.getBytes());

and it works fine UNTIL I add any non standard characters (for example ñ) and then as many characters I add, that number of characters are cut from the end of the file and don't arrive.

Full source code is available here in PandroidAgentTentacle.java

http://pandora.svn.sourceforge.net/viewvc/pandora/trunk/pandora_agents/android/src/pandroid/agent/

Have you tried specifying a charset name? getBytes(String charsetName) or getBytes(Charset charset). You will also have to specify the charset on the reciever's side. Sending some end-of-data marker would also be handy (or prefix a length). — Neet
– Neet, Commented Aug 27, 2012 at 7:52
I get this:- The method getBytes(String) in the type String is not applicable for the arguments (Charset) — Mark Holland
– Mark Holland, Commented Aug 27, 2012 at 8:09

njzk2 · Accepted Answer · 2012-08-27 07:56:14Z

1

The good this with using a DataOutputStream is that you have the writeUTF method that encapsulates all this for you.

answered Aug 27, 2012 at 7:56

njzk2

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2 Comments

Mark Holland Over a year ago

writeUTF adds a BOM that breaks the file being able to be read at the other end

njzk2 Over a year ago

no. it does not add a BOM. It includes the size of the stream. The other end should use readUTF to fetch the proper content. If you cannot use this, you need to explicitly indicate UTF-8 every time you switch from string to bytes.

Mohammad Ersan · Accepted Answer · 2012-08-27 07:57:29Z

0

have you tried to use serverOutput.write(data.getBytes("UTF-8")); ?

answered Aug 27, 2012 at 7:57

Mohammad Ersan

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2 Comments

David Wasser Over a year ago

Well, the default charset on Android is UTF-8, so I don't think this will change anything.

Mohammad Ersan Over a year ago

then check the server side, maybe the problem is there, you must read strings like new String(text,"UTF-8");

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