我使用Jackson-dataformat-xml库将POJO序列化为Xml。

POJO：

public class Row2 {
    public String getRn() {
        return rn;
    }
    public void setRn(String rn) {
        this.rn = rn;
    }
    public int getMobileNo() {
        return mobileNo;
    }
    public void setMobileNo(int mobileNo) {
        this.mobileNo = mobileNo;
    }
    @JsonAnyGetter
    public Map<String,String> getOtherElements() {
        return otherElements;
    }
    @JsonAnySetter
    public void setOtherElements(Map<String,String> otherElements) {
        this.otherElements = otherElements;
    }
    @JsonAnySetter
    public void add(String key,String value) {
        this.otherElements.put(key,value);
    }
    @JacksonXmlProperty(isAttribute=true)
    private String rn;
    private int mobileNo;
    private Map<String,String> otherElements = new HashMap<>() ; 
}

我正在使用以下代码对其进行序列化：

Row2 root2 = new Row2();
root2.setMobileNo(454);
root2.setRn("ResourceName");

Map<String,String> otherElements = new HashMap<String,String>() ;
otherElements.put("hey","there");
otherElements.put("bye","there");

root2.setOtherElements(otherElements );

JacksonXmlModule module = new JacksonXmlModule();
module.setDefaultUseWrapper(false);

XMLInputFactory input = new WstxInputFactory();
input.setProperty(XMLInputFactory.IS_NAMESPACE_AWARE,Boolean.FALSE);

WstxOutputFactory wstxOutputFactory = new WstxOutputFactory();
XmlMapper mapper = new XmlMapper(new XmlFactory(input,wstxOutputFactory),module);
mapper.enable(SerializationFeature.INDENT_OUTPUT);
mapper.configure( ToXmlGenerator.Feature.WRITE_XML_DeclARATION,true );

try {
    PropertyName propertyName = new PropertyName("hd:binSh","http://www.example.com/BAR");
    String xml = mapper.writer().withRootName(propertyName).writeValueAsString(root2);

    System.out.println("\nXML: \n" + xml );
} catch (IOException e) {
    e.printStackTrace();
}

我得到的输出是：

<?xml version='1.0' encoding='UTF-8'?>
<hd:binSh xmlns="http://www.example.com/BAR" rn="ResourceName">
  <mobileNo xmlns="">454</mobileNo>
  <hey xmlns="">there</hey>
  <bye xmlns="">there</bye>
</hd:binSh>

我想要的输出是：

<?xml version='1.0' encoding='UTF-8'?>
<hd:binSh xmlns:hd="http://www.example.com/BAR" rn="ResourceName">
  <mobileNo>454</mobileNo>
  <hey >there</hey>
  <bye >there</bye>
</hd:binSh>

所以我想要在根元素上定义的名称空间前缀，例如<hd:binSh xmlns:hd="http://www.example.com/BAR" rn="ResourceName">

感谢您的帮助。