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我從客戶端獲取HttpservletRequest,我試圖解析請求(使用JAXB,DOM)。對於我使用下面的代碼InputStream異常解析
String str_request = IOUtils.toString(request.getInputStream());
System.out.println("String is " + str_request);
requestStream = new ByteArrayInputStream(str_request.getBytes());
我的問題是,當我的requestStream傳遞給我的解析器方法,一種方法是工作正常,但另一種失敗。我猜這是inputStream的問題,但我無法解決這個問題。任何人都可以爲這個問題提出解決方案。
DOM解析器方法:
public String parseMethodName(InputStream request) throws SAXException,
IOException,
ParserConfigurationException {
System.out.println("in parseMethodName");
DocumentBuilderFactory dbFactory =
DocumentBuilderFactory.newInstance();
DocumentBuilder dBuilder = dbFactory.newDocumentBuilder();
System.out.println("bfor parse");
Document doc = dBuilder.parse(request);
System.out.println("After parse");
methodName =
doc.getElementsByTagName("methodName").item(0).getTextContent();
}
JAXB解析器方法:
System.out.println("in parse ******");
JAXBContext context = JAXBContext.newInstance(MethodCall.class);
System.out.println("bfor unmarshall ****");
Unmarshaller um = context.createUnmarshaller();
System.out.println("After unmarshall ****");
mc = (MethodCall) um.unmarshal(is);
我收到以下異常:
javax.xml.bind.UnmarshalException
- with linked exception:
[org.xml.sax.SAXParseException: Premature end of file.]
at javax.xml.bind.helpers.AbstractUnmarshallerImpl.createUnmarshalException(AbstractUnmarshallerImpl.java:315)
at com.sun.xml.internal.bind.v2.runtime.unmarshaller.UnmarshallerImpl.createUnmarshalException(UnmarshallerImpl.java:481)
at com.sun.xml.internal.bind.v2.runtime.unmarshaller.UnmarshallerImpl.unmarshal0(UnmarshallerImpl.java:199)
at com.sun.xml.internal.bind.v2.runtime.unmarshaller.UnmarshallerImpl.unmarshal(UnmarshallerImpl.java:168)
at javax.xml.bind.helpers.AbstractUnmarshallerImpl.unmarshal(AbstractUnmarshallerImpl.java:137)
at javax.xml.bind.helpers.AbstractUnmarshallerImpl.unmarshal(AbstractUnmarshallerImpl.java:184)