Question

使用JAXB将Java对象转换为XML时遇到以下异常。跟随是代码和例外。

   public class JMSExample {

private static String jaxbObjectToXML(Message message)
{
    String xmlContent="";
    try
    {
        //Create JAXB Context
        JAXBContext jaxbContext = JAXBContext.newInstance(Message.class);

        //Create Marshaller
        Marshaller jaxbMarshaller = jaxbContext.createMarshaller();

        //Required formatting??
        jaxbMarshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, Boolean.TRUE);

        //Print XML String to Console
        StringWriter sw = new StringWriter();

        //Write XML to StringWriter
        jaxbMarshaller.marshal(message, sw);

        //Verify XML Content
        xmlContent = sw.toString();
        System.out.println( xmlContent );

    } catch (JAXBException e) {
        e.printStackTrace();
    }
    return xmlContent;
}



public static void main(String[] args) throws JMSException {
    Event event=new Event();
    event.setEntity("emirates");
    event.setTaskId(null);
    event.setPeriodEndDate(new Date(20190531));
    event.setTaskDate("01-Jun-2019");
    event.setFrequency("Month End");
    event.setClientId(6029);
    event.setFundId(44949);
    event.setReportName("trial");
    event.setReportUpdatedAt("12-Jun-2019 07:46:25");

    Message employee=new Message();
    List <Event> enityList=new ArrayList<Event>();
    enityList.add(event);
    employee.setEvent(enityList);

    //Method which uses JAXB to convert object to XML
    String t=jaxbObjectToXML(employee);
}}

消息类别：

@XmlRootElement(name = "Message")

@XmlAccessorType（XmlAccessType.FIELD）公共类消息{

@XmlPath("Event")
private List <Event> Event = new ArrayList<Event>();

public List<Event> getEvent() {
    return Event;
}

public void setEvent(List<Event> event) {
    this.Event = event;
};
}

事件类：

@XmlAccessorType(XmlAccessType.FIELD)
public class Event {

@XmlAttribute (name="Entity")
private String Entity;
private String TaskId;
private Date PeriodEndDate;
private String TaskDate;
private String Frequency;
private int ClientId;
private int FundId;
private String ReportName;
private String ReportUpdatedAt;
public void setEntity(String Entity) {
    this.Entity = Entity;
}
public void setTaskId(String taskId) {
    this.TaskId = taskId;
}
public void setPeriodEndDate(Date periodEndDate) {
    PeriodEndDate = periodEndDate;
}
public void setTaskDate(String taskDate) {
    this.TaskDate = taskDate;
}
public void setFrequency(String frequency) {
    this.Frequency = frequency;
}
public void setClientId(int clientId) {
    this.ClientId = clientId;
}
public void setFundId(int fundId) {
    this.FundId = fundId;
}
public void setReportName(String reportName) {
    this.ReportName = reportName;
}
public void setReportUpdatedAt(String reportUpdatedAt) {
    this.ReportUpdatedAt = reportUpdatedAt;
}
}

面临的异常： [Exception [EclipseLink-25007]（Eclipse Persistence Services-2.5.0.v20130507-3faac2b）：org.eclipse.persistence.exceptions.XMLMarshalException 异常描述：在项目中找不到类com.trial.test.message.Message的描述符。对于JAXB，如果使用TypeMappingInfo []引导了JAXBContext，则必须调用一个接受TypeMappingInfo作为输入参数的编组方法。]

使用JAXB将Java对象转换为xml时出现异常

0 个答案: