我一直在使用Jackson进行JSON序列化/反序列化,并且已经成功地使用了它。现在,我也想使用它来进行XML序列化/反序列化,使用的是它的jackson-dataformat-xml-2.3.0.jar包。
我使用了
objectmapper.reader(Student.class).withRootName("prefix:student").readValue(jsonString)
将我的JSON(具有前缀的根名称)反序列化为Student
类,这很成功。
现在,我正在尝试将具有前缀的XML字符串反序列化为Student
:
XML:
<prefix:student>
<name>
Jack Jones
</name>
<id>1</id>
</prefix:student>
我的POJO:
@XmlAccessorType(XmlAccessType.FIELD)
@XmlType(name = "", propOrder = {
"name",
"id",
....
})
@XmlRootElement(name = "student")
public class Student
{
protected String name;
BigInteger id;
..........................
}
我使用 jackson-dataformat-xml
中的 XmlMapper
进行反序列化,代码如下:
xmlMapper.reader(Student.class).withRootName("prefix:student").readValue(xmlString)
我遇到了以下异常:
java.io.IOException: com.ctc.wstx.exc.WstxParsingException: Undeclared namespace prefix "prefix"
at [row,col {unknown-source}]: [1,9]
at com.fasterxml.jackson.dataformat.xml.util.StaxUtil.throwXmlAsIOException(StaxUtil.java:24)
at com.fasterxml.jackson.dataformat.xml.XmlFactory._createParser(XmlFactory.java:473)
at com.fasterxml.jackson.dataformat.xml.XmlFactory._createParser(XmlFactory.java:26)
at com.fasterxml.jackson.core.JsonFactory.createParser(JsonFactory.java:844)
at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:2091)
Caused by: com.ctc.wstx.exc.WstxParsingException: Undeclared namespace prefix "prefix"
at [row,col {unknown-source}]: [1,9]
at com.ctc.wstx.sr.StreamScanner.constructWfcException(StreamScanner.java:606)
at com.ctc.wstx.sr.StreamScanner.throwParseError(StreamScanner.java:479)
at com.ctc.wstx.sr.InputElementStack.resolveAndValidateElement(InputElementStack.java:507)
at com.ctc.wstx.sr.BasicStreamReader.handleStartElem(BasicStreamReader.java:2977)
at com.ctc.wstx.sr.BasicStreamReader.handleRootElem(BasicStreamReader.java:2098)
at com.ctc.wstx.sr.BasicStreamReader.nextFromProlog(BasicStreamReader.java:2078)
at com.ctc.wstx.sr.BasicStreamReader.next(BasicStreamReader.java:1134)
at com.fasterxml.jackson.dataformat.xml.XmlFactory._initializeXmlReader(XmlFactory.java:581)
at com.fasterxml.jackson.dataformat.xml.XmlFactory._createParser(XmlFactory.java:471)
... 6 more
我需要为自定义根名称的XML反序列化做些什么?
student
,就像这里定义的一样:@XmlRootElement(name = "student")
! - My-Name-Is