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POProducing valid XML with Java and UTF-8 encoding
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  1. POProducing valid XML with Java and UTF-8 encoding
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    copied!<p>I am using JAXP to generate and parse an XML document from which some fields are loaded from a database.</p> <p>Code to serialize the XML:</p> <pre><code>DocumentBuilder builder = DocumentBuilderFactory.newInstance().newDocumentBuilder(); Document doc = builder.newDocument(); Element root = doc.createElement("test"); root.setAttribute("version", text); doc.appendChild(root); DOMSource domSource = new DOMSource(doc); TransformerFactory tFactory = TransformerFactory.newInstance(); FileWriter out = new FileWriter("test.xml"); Transformer transformer = tFactory.newTransformer(); transformer.setOutputProperty(OutputKeys.INDENT, "yes"); transformer.setOutputProperty(OutputKeys.ENCODING, "UTF-8"); transformer.transform(domSource, new StreamResult(out)); </code></pre> <p>Code to parse the XML:</p> <pre><code>DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance(); factory.setNamespaceAware(true); DocumentBuilder builder = factory.newDocumentBuilder(); Document doc = builder.parse("test.xml"); </code></pre> <p>And I encounter the following exception:</p> <pre><code>[Fatal Error] test.xml:1:4: Invalid byte 1 of 1-byte UTF-8 sequence. Exception in thread "main" org.xml.sax.SAXParseException: Invalid byte 1 of 1-byte UTF-8 sequence. at org.apache.xerces.parsers.DOMParser.parse(Unknown Source) at org.apache.xerces.jaxp.DocumentBuilderImpl.parse(Unknown Source) at javax.xml.parsers.DocumentBuilder.parse(Unknown Source) at com.test.Test.xml(Test.java:27) at com.test.Test.main(Test.java:55) </code></pre> <p>The String text includes u-umlaut and o-umlaut (character codes 0xFC and 0xF6). These are the characters that are causing the error. When I escape the String myself to use &amp;#xFC; and &amp;#xF6; then the problem goes away. Other entities are automatically encoded when I write out the XML.</p> <p>How do I get my output to be written / read properly without substituting these characters myself?</p> <p>(I've read the following questions already:</p> <p><a href="https://stackoverflow.com/questions/156697/how-to-encode-characters-from-oracle-to-xml">How to encode characters from Oracle to XML?</a></p> <p><a href="https://stackoverflow.com/questions/216890/repairing-wrong-encoding-in-xml-files">Repairing wrong encoding in XML files</a>)</p>
 

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