使用jaxb

Question

我正在以xml类型获取响应，我想将该xml解析为Java POJO。我想从“返回”标记名开始解析。

这是xml示例

<SOAP-ENV:Envelope SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/">
   <SOAP-ENV:Body>
  <ns1:inquiryResponse xmlns:ns1="urn:Bakoelbuzz">
     <return xsi:type="SOAP-ENC:Array" SOAP-ENC:arrayType="unnamed_struct_use_soapval[15]">
        <item>
           <product_id xsi:type="xsd:string">P732287</product_id>
           <voucher xsi:type="xsd:string">SIMPATI</voucher>
           <nominal xsi:type="xsd:string">5.000</nominal>
           <price xsi:type="xsd:int">5350</price>
        </item>
        <item>
           <product_id xsi:type="xsd:string">P612697</product_id>
           <voucher xsi:type="xsd:string">SIMPATI</voucher>
           <nominal xsi:type="xsd:string">10.000</nominal>
           <price xsi:type="xsd:int">10150</price>
        </item>
</return>
</ns1:inquiryResponse>
</SOAP-ENV:Body>
</SOAP-ENV:Envelope>

这是Java中用于解析xml的代码

javax.xml.soap.MessageFactory factory = javax.xml.soap.MessageFactory.newInstance();
        SOAPMessage message = factory.createMessage(
                new MimeHeaders(),
                new ByteArrayInputStream(xmlString.getBytes(Charset
                        .forName("UTF-8"))));
        SOAPBody body = message.getSOAPBody();
        NodeList returnNode = body.getElementsByTagName("return");
        StringWriter buf = new StringWriter();
        Transformer xform = TransformerFactory.newInstance().newTransformer();
        xform.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes");
        xform.setOutputProperty(OutputKeys.INDENT, "yes");
        xform.transform(new DOMSource(returnNode.item(0)), new StreamResult(buf));
        String returnString = buf.toString();
        System.out.println(returnString); 
        Return value = XmlJaxb.read(returnString, Return.class);

这里是Return和Item类

@XmlRootElement(name = "return")
@XmlAccessorType(XmlAccessType.FIELD)
public class Return {    
    @XmlElementWrapper
    @XmlElement(name="item")
    private List<Item> item;
}

@XmlRootElement(name = "item")
@XmlAccessorType(XmlAccessType.FIELD)
public class Item {
    @XmlElement(name = "product_id")
    private String productId;  
    @XmlElement
    private String voucher;    
    @XmlElement
    private String nominal;
    @XmlElement
    private int price;
}

我已经成功获得了“ return”标签。但是，当我尝试将“ return”标签转换为POJO时，项目值始终为null。请告诉我我的代码出了什么问题？

谢谢