eclipse org.xmlpull.v1.XmlPullParserException
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org.xmlpull.v1.XmlPullParserException
提问by hari
I'm trying to bind an xml file(as a byte[]) to a java object. This is my code-
我正在尝试将一个 xml 文件（作为 a byte[]）绑定到一个 java 对象。这是我的代码-
public voidinputConfigXML(String xmlfile, byte[] xmlData) {
IBindingFactory bFact = BindingDirectory.getFactory(GroupsDTO.class);
IUnmarshallingContext uctx = bFact.createUnmarshallingContext();
groups = (GroupsDTO) uctx.unmarshalDocument(new ByteArrayInputStream(xmlData), "UTF8");
}
The unmarshalDocument()is giving me this exception. What do i do?
这unmarshalDocument()是给我这个例外。我该怎么办？
FYI: Running as JUnit test case
仅供参考：作为 JUnit 测试用例运行
The following is the stacktrace -
以下是堆栈跟踪 -
Error parsing document (line 1, col 1)
org.xmlpull.v1.XmlPullParserException: only whitespace content allowed before start tag and not \u0 (position: START_DOCUMENT seen \u0... @1:1)
at org.xmlpull.mxp1.MXParser.parseProlog(MXParser.java:1519)
at org.xmlpull.mxp1.MXParser.nextImpl(MXParser.java:1395)
at org.xmlpull.mxp1.MXParser.next(MXParser.java:1093)
at org.jibx.runtime.impl.XMLPullReaderFactory$XMLPullReader.next(XMLPullReaderFactory.java:291)
at org.jibx.runtime.impl.UnmarshallingContext.toStart(UnmarshallingContext.java:451)
at org.jibx.runtime.impl.UnmarshallingContext.unmarshalElement(UnmarshallingContext.java:2755)
at org.jibx.runtime.impl.UnmarshallingContext.unmarshalDocument(UnmarshallingContext.java:2905)
at abc.dra.DRAAPI.inputConfigXML(DRAAPI.java:31)
at abc.dra.XMLToObject_Test.test(XMLToObject_Test.java:34)
[...]
This is my code that forms byte[]-
这是我的代码，形成 byte[]-
void test() {
String xmlfile = "output.xml"
File file = new File(xmlfile);
byte[] xmlData = new byte[(int) file.length()];
groups = dra.inputConfigXML(xmlfile, xmlData);
}
回答by Christian Kuetbach
The ByteArrayInputstream is empty:
ByteArrayInputstream 为空：
only whitespace content allowed before start tag and not \u0
(position: START_DOCUMENT seen \u0... @1:1)
means, that a \u0 Bit was found as first char within the XML.
意味着，在 XML 中找到了一个 \u0 位作为第一个字符。
Ensure you have content within your byte[]and the UTF-8 don't start with a BOM.
确保您的内容中有内容byte[]并且 UTF-8 不以BOM开头。
I don't think, that the BOM is your problem here, but I often encountert regarding BOM and java.
我不认为 BOM 是你的问题，但我经常遇到关于 BOM 和 java 的问题。
update
更新
You don't fill the byte[]. You have to read the file-content into the byte[]:
read this: File to byte[] in Java
你不填byte[]。您必须将文件内容byte[]读入: read this: File to byte[] in Java
By the way: byte[] xmlData = new byte[(int) file.length()];is bad code-style, becaus you will run into problems with larger XML-files. If they are larger than Integer.MAX_VALUEyou will read a corrupt file.
顺便说一句：byte[] xmlData = new byte[(int) file.length()];是糟糕的代码风格，因为你会遇到更大的 XML 文件的问题。如果它们大于Integer.MAX_VALUE您将读取损坏的文件。
回答by Don Corley
Hari,
JiBX need characters as input. I think you have specified your encoding incorrectly. Try this code instead:
Hari、
JiBX 需要字符作为输入。我认为您错误地指定了您的编码。试试这个代码：
FileInputStream fis = new FileInputStream("output.xml");
InputStreamReader isr = new InputStreamReader(fis, "UTF8");
groups = (GroupsDTO) uctx.unmarshalDocument(isr);
If you must use the code you have written, I would try outputting the text to the console (System.put.println(xxx)) to make sure you are decoding the utf-8 correctly.
如果您必须使用您编写的代码，我会尝试将文本输出到控制台 (System.put.println(xxx)) 以确保您正确解码 utf-8。
Don
大学教师
回答by Don Corley
Go to to mvn repository path and delete that folder for xml file.
转到 mvn 存储库路径并删除该文件夹以存放 xml 文件。
