Java將復雜的xml解組到對象

Question

 I tried to unmarshall following xml file.

<ns2:Triggermessage xmlns="http://www.asd.com/messaging" xmlns:ns2="http://www.asd.com/messaging/closing/trigger">
  <Header>
    <creationTimeStamp>2017-05-23T12:11:46.950+00:00</creationTimeStamp>
    <businessDate>2017-05-23</businessDate>
    <messageId>20170523-22:30:00_Calypso Rpt 7_444_0</messageId>
    <conversationId>7397dbd3-5177-40ff-acb5-1b2ba8d0d1f6</conversationId>
    <numberOfRecords>1</numberOfRecords>
    <sentBy>ABCDE</sentBy>
    <sendto>Camplico</sendto>
    <processingCycle>ACD</processingCycle>
  </Header>
  <ns2:Request>
    <ns2:ProcessingCircle>EOD</ns2:ProcessingCircle>
  </ns2:Request>
</ns2:Triggermessage>

Here I created classes in this way.(not all the classes are mentioned here)

**TriggerMessage.java**
 @XmlRootElement(name = "TriggerMessage", namespace="http://www.asd.com/messaging/closing/trigger")
    public class TriggerMessage {

        private Header header;
        private Request request;

        @XmlElement(name = "Header")
        public Header getHeader() {
            return header;
        }
        public void setHeader(Header header) {
            this.header = header;
        }

        @XmlElement(name = "Request")
        public Request getRequest() {
            return request;
        }
        public void setRequest(Request request) {
            this.request = request;
        }
    }

**Header.java**
private CreationTimeStamp creationTimeStamp;
    private BusinessDate businessDate;
    private MessageId messageId;
    private ConversationId conversationId;
    private SentBy sentBy;
    private SendTo sendTo;
    private ProcessingCycle processingCycle;
    private NumberOfRecords numberOfRecords;
@XmlElement(name = "creationTimeStamp")
public CreationTimeStamp getCreationTimeStamp() {
    return creationTimeStamp;
}
public void setCreationTimeStamp(CreationTimeStamp creationTimeStamp) {
    this.creationTimeStamp = creationTimeStamp;
}

@XmlElement(name = "businessDate")
public BusinessDate getBusinessDate() {
    return businessDate;
}
public void setBusinessDate(BusinessDate businessDate) {
    this.businessDate = businessDate;
}

@XmlElement(name = "conversationId")
public ConversationId getConversationId() {
    return conversationId;
}
public void setConversationId(ConversationId conversationId) {
    this.conversationId = conversationId;
}

@XmlElement(name = "messageId")
public MessageId getMessageId() {
    return messageId;
}
public void setMessageId(MessageId messageId) {
    this.messageId = messageId;


 }
-
-
-}

**CreationTimeStamp.java**

 public class CreationTimeStamp {

        private String value;

        @XmlMixed
        public String getValue() {
            return value;
        }
        public void setValue(String value) {
            this.value = value;
        }
    }

  **Request.java**

@XmlType(namespace="http://www.asd.com/messaging/closing/trigger")
public class Request {

    private ProcessingCircle processingCircle;

    @XmlElement(name = "processingCircle")
    public ProcessingCircle getProcessingCircle() {
        return processingCircle;
    }
    public void setProcessingCircle(ProcessingCircle processingCircle) {
        this.processingCircle = processingCircle;
    }
}

並得到如下對象， 在此處輸入圖像描述

誰能提到我需要如何正確創建java類才能正確解所有值。請注意，我在這里沒有使用package-info.java文件。

這是我用於解組的代碼

private List<Object> unMarshalMessages(List<String> messages) {
        List<Object> messageObjects = new ArrayList<Object>();
        JAXBContext context = null;
        try {
            context = JAXBContext.newInstance(Class.forName("com.msgs.calpico.TriggerMessage"));
            Unmarshaller m = context.createUnmarshaller();
            StringReader reader = null;
            for (String message : messages) {
                reader = new StringReader(message);
            messageObjects.add(((com.msgs.calpico.TriggerMessage) m.unmarshal(reader)));
            }

        } catch (JAXBException e) {
            e.printStackTrace();
        } catch (ClassNotFoundException e) {
            e.printStackTrace();
        }
        LOGGER.info("After unmarshal the output messages size: " + messageObjects.size());
        return messageObjects;
    }

Answer 1

將xml轉換為xsd。 之后，使用eclipse創建jaxb項目並指向xsd。 Java文件將基於xsd文件生成。

生成Java模式文件后，即可使用marshall和unmarsahll代碼。

私有靜態JAXBContext _jaxbContext;

static
{
    ClassLoader cl = Thread.currentThread().getContextClassLoader();
    try
    {
        Thread.currentThread().setContextClassLoader(Connection.class.getClassLoader()); //NOPMD.

        StringBuffer sb = new StringBuffer();
        sb.append("com.microsoft.schemas.windowsazurerm"); //schema package name
        _jaxbContext = JAXBContext.newInstance(sb.toString());
    }
    catch (Exception e)
    {
        logger.error(e);
    }
    finally
    {
        Thread.currentThread().setContextClassLoader(cl);
    }
}

解組員解組員 對象object = null; 嘗試{unmarshaller = context.createUnmarshaller（）; object = unmarshaller.unmarshal（new StreamSource（new StringReader（xml）））; }