character encoding from XML to Java

Question

 <?xml version="1.0" encoding="UTF-8"?>

I'll put just some extract of codes, that i think are meaningful.

I'm reading some information from one xml via http request, something like this :

        // defaultHttpClient
        DefaultHttpClient httpClient = new DefaultHttpClient();
        HttpPost httpPost = new HttpPost(url);

        HttpResponse httpResponse = httpClient.execute(httpPost);
        HttpEntity httpEntity = httpResponse.getEntity();
        xml = EntityUtils.toString(httpEntity);

if i print the string xml to the screen i can see some problems with the codification already

then to return a document i have this

        Document doc = null;
        DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();

        DocumentBuilder db = dbf.newDocumentBuilder();

        InputSource is = new InputSource();
        is.setCharacterStream(new StringReader(xml));

        doc = db.parse(is);

Although i'm fetching correctly the information from http request, i'm having problems with the enconding of the characters when i'm showing the data.

I already tried to do is.setEncoding("UTF-8") but didn't work.

jtahlborn · Accepted Answer · 2013-03-18 14:22:31Z

4

The problem is that you converted the xml to a String (characters), don't do that (you most likely used the wrong encoding and corrupted the xml). treat xml as binary data (bytes).

you could use EntityUtils.toByteArray (okay), or you could pass the HttpEntity stream directly to the xml parser (ideal).

edited Mar 18, 2013 at 14:22

answered Mar 18, 2013 at 14:14

jtahlborn

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4 Comments

unpix Over a year ago

Thanks for the reply, is not possible that the problem is with the XML rather the code? And instead of doing EntityUtils.toString, i can use what you suggested, but then what should i put in the constructor of this object? is.setCharacterStream(new StringReader(xml)); //before when it was with a string is.setCharacterStream(???); // I don't know which constructor i can use with an array of bytes.

McDowell Over a year ago

@unpix Use the InputSource(InputStream) constructor. If you start with a byte array, you can use ByteArrayInputStream.

unpix Over a year ago

Thanks, maybe it will work as well, but i already found the simplest solution

akinKaplanoglu Over a year ago

@unpix What did you find for solution ? I am also have this kind of problem.

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