Java从UTF-16LE字符串解析XML

Question

我正在尝试解析嵌入到文件中的UTF-16LEXML字符串。我能够将实际的字符串读入string对象，并且可以在监视窗口中查看XML，它看起来很好。问题是，当我尝试解析它时，总是抛出异常。我尝试在getBytes行和InputStreamReader构造函数中指定UTF-16和UTF-16LE，但它仍然抛出异常。

DocumentBuilderFactory builderFactory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder = null;

builder = builderFactory.newDocumentBuilder();      
Document document = null;
byte[] bytes = xmlString.getBytes();
ByteArrayInputStream inputStream = new ByteArrayInputStream(bytes);
InputSource is = new InputSource(new InputStreamReader(inputStream));
document = builder.parse(is); // throws SAXParseException

编辑:这是使用Android。另外，下面是我在堆栈跟踪的顶部得到的异常：

12-18 13:51:12.978: W/System.err(5784)：org.xml.sax.SAXParseException:预期名称(position:START_TAG @1:2 in java.io.InputStreamReader@4118c880) 12-18 13:51:12.978: W/System.err(5784)：at org.apache.harmony.xml.parsers.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:146) 12-18 13:51:12.978: W/System.err(5784)：at javax.xml.parsers.DocumentBuilder.parse(DocumentBuilder.java:107)

Answer 1

以下是我最终要做的事情：

DocumentBuilderFactory builderFactory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder = null;

builder = builderFactory.newDocumentBuilder();      
Document document = null;
byte[] bytes = Charset.forName("UTF-16LE").encode(xmlString).array();
InputStream inputStream = new ByteArrayInputStream(bytes);
document = builder.parse(inputStream);

来源：How does one create an InputStream from a String?

Answer 2

在同一个程序中，不需要在字符串和字节之间来回转换。它就像这样简单：

String xml = "<root><tag>Hello World!</tag></root>";

Document dom = DocumentBuilderFactory.newInstance()
    .newDocumentBuilder().parse(new InputSource(new StringReader(xml)));