使用EclipseLink MOXy解组时忽略DTD [英] Ignoring DTDs when unmarshalling with EclipseLink MOXy
问题描述
当尝试使用EclipseLink MOXy将一些XML解组为POJO时，我得到一个 FileNotFoundException ，它正在寻找文档的DTD作为相对路径。
When trying to unmarshall some XML into a POJO using EclipseLink MOXy I'm getting a FileNotFoundException where it's looking for the document's DTD as a relative path.
Exception in thread "main" org.springframework.oxm.UnmarshallingFailureException: JAXB unmarshalling exception; nested exception is javax.xml.bind.UnmarshalException
- with linked exception:
[java.io.FileNotFoundException: C:\Users\deejay\Documents\workspace-sts-3.0.0.RELEASE\moxy-test\ieee_idams_exchange.dtd (The system cannot find the file specified)]
at org.springframework.oxm.jaxb.Jaxb2Marshaller.convertJaxbException(Jaxb2Marshaller.java:761)
at org.springframework.oxm.jaxb.Jaxb2Marshaller.unmarshal(Jaxb2Marshaller.java:682)
at org.springframework.oxm.jaxb.Jaxb2Marshaller.unmarshal(Jaxb2Marshaller.java:665)
at com.mendeley.services.utility.EclipseLinkMarshaller.load(EclipseLinkMarshaller.java:29)
at com.mendeley.MoxyTest.main(MoxyTest.java:31)
我按照这个例子，所以我不知道为什么它甚至需要一个DTD。如果我可以让它忽略DTD，或者不尝试解决它，那就太好了。
I'm providing "externalized metadata" as per this example, so I've no idea why it even needs a DTD. If I could get it to ignore the DTD, or not try and resolve it, that'd be great.
推荐答案
你可以从已禁用DTD支持的 XMLStreamReader 解组：
You could unmarshal from an XMLStreamReader that has DTD support disabled:
import javax.xml.bind.*;
import javax.xml.stream.*;
import javax.xml.transform.stream.StreamSource;
public class Demo {
public static void main(String[] args) throws Exception {
JAXBContext jc = JAXBContext.newInstance(Customer.class);
XMLInputFactory xif = XMLInputFactory.newFactory();
xif.setProperty(XMLInputFactory.SUPPORT_DTD, false);
XMLStreamReader xsr = xif.createXMLStreamReader(new StreamSource("input.xml"));
Unmarshaller unmarshaller = jc.createUnmarshaller();
Customer customer = (Customer) unmarshaller.unmarshal(xsr);
}
}
额外
如果您想写DTD声明，您可以执行以下操作：
If you want to write the DTD declaration you could do the following:
XMLOutputFactory xof = XMLOutputFactory.newFactory();
XMLStreamWriter xsw = xof.createXMLStreamWriter(System.out);
xsw.writeDTD("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\" \"http://www.w3.org/TR/html4/loose.dtd\">");
Marshaller marshaller = jc.createMarshaller();
marshaller.setProperty(Marshaller.JAXB_FRAGMENT, true);
marshaller.marshal(html, xsw);
xsw.close();
这篇关于使用EclipseLink MOXy解组时忽略DTD的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
