Java，XML DocumentBuilder - 解析时设置编码 [英] Java, XML DocumentBuilder - setting the encoding when parsing

问题描述

我正在保存一个树（扩展 JTree ），它将一个 XML 文档保存到 DOM对象已经改变了它的结构。

I'm trying to save a tree (extends JTree) which holds an XML document to a DOM Object having changed it's structure.

我已经创建了一个新的文档对象，遍历树来成功检索内容包括 XML 文档的原始编码），现在有一个 ByteArrayInputStream ，它具有树的内容（ XML 文档）具有正确的编码。

I have created a new document object, traversed the tree to retrieve the contents successfully (including the original encoding of the XML document), and now have a ByteArrayInputStream which has the tree contents (XML document) with the correct encoding.

问题是当我解析 ByteArrayInputStream 自动将编码更改为 UTF-8 （在 XML 文档中）。

The problem is when I parse the ByteArrayInputStream the encoding is changed to UTF-8 (in the XML document) automatically.

有没有办法防止这种情况，并使用 ByteArrayInputStream 中提供的正确编码。

Is there a way to prevent this and use the correct encoding as provided in the ByteArrayInputStream.

也值得补充的是，我已经使用了

transformer.setOutputProperty（OutputKeys.ENCODING，encoding） code>方法来检索正确的编码。

It's also worth adding that I have already used the
transformer.setOutputProperty(OutputKeys.ENCODING, encoding) method to retrieve the right encoding.

任何帮助将不胜感激。

推荐答案

自从OutputFormat被弃用以来，这是一个更新的答案：

Here's an updated answer since OutputFormat is deprecated :

TransformerFactory tf = TransformerFactory.newInstance();
Transformer transformer = tf.newTransformer();
transformer.setOutputProperty(OutputKeys.ENCODING, "ISO-8859-1");

StringWriter writer = new StringWriter();
transformer.transform(new DOMSource(document), new StreamResult(writer));
String output = writer.getBuffer().toString().replaceAll("\n|\r", "");

第二部分将返回XML文档作为字符串

The second part will return the XML Document as String

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