JaxB解封异常：javax.xml.bind.unmarshalException：意外元素。我哪里出了问题？

Question

    JAXBElement<RequestblockType> requestblock = objectFactory.createRequestblock(requestblockType);
    m.marshal(requestblock, writer);
    // output string to console
    byte[] bytes = writer.toString().getBytes(Charset.forName("UTF-8"));

我以xml字符串的形式从服务器返回响应，现在试图将其解压缩回对象中。

    JAXBContext jaxbContext = JAXBContext.newInstance(ResponseblockType.class);
    StringReader reader = new StringReader(xmlString);
    jaxbContext.createUnmarshaller().unmarshal(reader); //this line throws Exception
    um.unmarshal(reader);

在指定的行上，我得到以下异常：

UnmarshalException：意外元素（URI：“”,local：“ResponseBlock”）。需要的元素为<{}responseblocktype>

<?xml version="1.0" encoding="UTF-8"?>
<responseblock version="3.67">
  <requestreference>X5727835</requestreference>
   <response type="AUTH">
  <merchant>
     <merchantname>Merchant1</merchantname>
     <orderreference>8900001233</orderreference>
     <tid>12341234</tid>
     <merchantnumber>00000000</merchantnumber>
     <merchantcountryiso2a>GB</merchantcountryiso2a>
  </merchant>
  <transactionreference>3-9-1598316</transactionreference>
  <timestamp>2014-08-18 11:56:40</timestamp>
  <acquirerresponsecode>00</acquirerresponsecode>
  <operation>
     <accounttypedescription>ECOM</accounttypedescription>
  </operation>
  <settlement>
     <settleduedate>2014-08-18</settleduedate>
     <settlestatus>0</settlestatus>
  </settlement>
  <billing>
     <amount currencycode="USD">3698</amount>
     <payment type="VISA">
        <issuer>Test Issuer1</issuer>
        <pan>1234123412341234</pan>
        <issuercountry>US</issuercountry>
     </payment>
     <dcc enabled="0" />
  </billing>
  <authcode>TEST</authcode>
  <live>0</live>
  <error>
     <message>Ok</message>
     <code>0</code>
  </error>
  <security>
     <postcode>0</postcode>
     <securitycode>2</securitycode>
     <address>0</address>
  </security>
   </response>
</responseblock>

@XmlAccessorType(XmlAccessType.FIELD)
@XmlType(name = "responseblockType")
@XmlRootElement
public class ResponseblockType {

@XmlElement(required = true)
protected String requestreference;
@XmlElement(required = true)
protected ResponseType response;
@XmlAttribute(name = "version")
protected String version;

public String getRequestreference() { return requestreference; }
public void setRequestreference(String value) { this.requestreference = value; }
public ResponseType getResponse() { return response; }
public void setResponse(ResponseType value) { this.response = value; }
public String getVersion() { return version; }
public void setVersion(String value) { this.version = value;  }

谁能让我知道我哪里出了问题？如果可能的话，我可以提供更多的信息。我从其他帖子中看到，在我的顶级bean响应类中添加@XmlRootelement可能会有所帮助，但没有成功。此外，我不必这样做，我的要求时，编组。

Answer 1

序列化XML responseblock的根元素名与bean类中定义的根元素名不同。

<responseblock version="3.67">

但是

@XmlRootElement
public class ResponseblockType

它应该是与您的注释相匹配的以下内容：

 <responseblockType version="3.67">
    ...
    ...
 </responseblockType>

@XmlRootElement(name="responseblock")
public class ResponseblockType   

 line 4: <response type="AUTH">