当Jaxb解组时，希望未知属性出错

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我正在使用Jaxb将XML解组为java对象。我需要知道XML中的新属性/元素何时失败。但是默认情况下，unmarshaller忽略了新的元素/属性。

I'm using Jaxb to unmarshal XML into a java object. I need to know when new attributes/elements are in the XML and fail. However by default the unmarshaller is ignoring new elements/attributes.

当XML中存在未指定的新属性/元素时，是否存在可以设置为失败的配置POJO？

Is there a configuration I can set to fail when new attributes/elements exist in the XML that are not specified in the POJO?

我的POJO：

import javax.xml.bind.annotation.XmlAttribute; import javax.xml.bind.annotation.XmlElement; import javax.xml.bind.annotation.XmlRootElement; @XmlRootElement(name = "ROOT") public class Model { private A a; public A getA() { return a; } @XmlElement(name = "A") public void setA(A a) { this.a = a; } static class A { String country; public String getCountry() { return country; } @XmlAttribute(name = "Country") public void setCountry(String country) { this.country = country; } } }

解组代码：

JAXBContext jaxbContext = JAXBContext.newInstance(Model.class); Unmarshaller jaxbUnmarshaller = jaxbContext.createUnmarshaller(); String sample = "<ROOT>" + "<A Country=\"0\" NewAttribute=\"0\"></A>" + "<NEWELEMENT> </NEWELEMENT>" + "</ROOT>"; InputStream stream = new ByteArrayInputStream(sample.getBytes(StandardCharsets.UTF_8)); Object unmarshal = jaxbUnmarshaller.unmarshal(stream);

推荐答案

你需要打电话给 Unmarshaller.setEventHandler（） 使无效的XML内容失败。

You need to call Unmarshaller.setEventHandler() to make invalid XML content fail.