Question

如下图所示，我有一个带有setter和getter的POJO类：

public class InvoiceReferenceNotificationMessage  {

    private String InvoiceReference;
    private String ABSReference;
    private String Currency;
    private double InvoiceAmount;
    private double PaidAmount;
    private double BalanceAmount;
    private Date ValueDate;
    private String Remarks;

}

及以下是引用上述内容的类：

public class Mail {
    @SuppressWarnings("unused")
    private  InvoiceReferenceNotificationMessage invoiceReferenceNotificationMessage;

    public InvoiceReferenceNotificationMessage getInvoiceReferenceNotificationMessage() {
        return invoiceReferenceNotificationMessage;
    }

    public void setInvoiceReferenceNotificationMessage(
            InvoiceReferenceNotificationMessage invoiceReferenceNotificationMessage) {
        this.invoiceReferenceNotificationMessage = invoiceReferenceNotificationMessage;
    }

}

我正在使用xstream从对象生成xml。我在java中创建单个对象没有问题，如下所示：

public class InvoiceReferenceNotificationMessagetest {

    InvoiceReferenceNotificationMessage invoiceReferenceNotificationMessage = new InvoiceReferenceNotificationMessage();
    invoiceReferenceNotificationMessage.setInvoiceReference("S15");
    invoiceReferenceNotificationMessage.setABSReference("IRMA1");
    invoiceReferenceNotificationMessage.setCurrency("GBP");
    invoiceReferenceNotificationMessage.setInvoiceAmount(25746);
    invoiceReferenceNotificationMessage.setPaidAmount(18245);
    invoiceReferenceNotificationMessage.setBalanceAmount(90);
    invoiceReferenceNotificationMessage.setValueDate(new Date());
    invoiceReferenceNotificationMessage.setRemarks("abc");


    Mail m = new Mail();
    m.setInvoiceReferenceNotificationMessage(invoiceReferenceNotificationMessage);
    XStream xstream = new XStream();
    xstream.alias("brokermail",Mail.class);
    String abc = xstream.toXML(m);
}

如何继续创建多个对象？我应该将它们添加到列表中然后将其传递给xstream吗？请告知我如何更改我的邮件类以存储InvoiceReferenceNotificationMessage类的多个对象以下是我的尝试：

InvoiceReferenceNotificationMessage invoiceReferenceNotificationMessage1 = new InvoiceReferenceNotificationMessage();
invoiceReferenceNotificationMessage.setInvoiceReference("S93159");
invoiceReferenceNotificationMessage.setABSReference("IRM9311");
invoiceReferenceNotificationMessage.setCurrency("GBP");
invoiceReferenceNotificationMessage.setInvoiceAmount(257646);
invoiceReferenceNotificationMessage.setPaidAmount(12475);
invoiceReferenceNotificationMessage.setBalanceAmount(0);
invoiceReferenceNotificationMessage.setValueDate(new Date());
invoiceReferenceNotificationMessage.setRemarks("abrtc");


InvoiceReferenceNotificationMessage invoiceReferenceNotificationMessage2 = new InvoiceReferenceNotificationMessage();
invoiceReferenceNotificationMessage.setInvoiceReference("S6315");
invoiceReferenceNotificationMessage.setABSReference("IR11");
invoiceReferenceNotificationMessage.setCurrency("GBP");
invoiceReferenceNotificationMessage.setInvoiceAmount(266546);
invoiceReferenceNotificationMessage.setPaidAmount(12645);
invoiceReferenceNotificationMessage.setBalanceAmount(0);
invoiceReferenceNotificationMessage.setValueDate(new Date());
invoiceReferenceNotificationMessage.setRemarks("abcdgdg");

Answer 1

我似乎很明显。由于Mail只能包含一个InvoiceReferenceNotificationMessage，因此您需要创建第二个“邮件”对象（或在生成XML后重复使用第一个对象）以保留第二个“InvoiceReferenceNotificationMessage”＆＃39 ;对象

Mail m1 = new Mail();
Mail m2 = new Mail()

XStream xstream = new XStream();
xstream.alias("brokermail",Mail.class);

m1.setInvoiceReferenceNotificationMessage(invoiceReferenceNotificationMessage1);
m2.setInvoiceReferenceNotificationMessage(invoiceReferenceNotificationMessage2);

String abc1 = xstream.toXML(m1);
String abc2 = xstream.toXML(m2);

...或......

Mail m1 = new Mail();

XStream xstream = new XStream();
xstream.alias("brokermail",Mail.class);

m1.setInvoiceReferenceNotificationMessage(invoiceReferenceNotificationMessage1);

String abc1 = xstream.toXML(m1);

m1.setInvoiceReferenceNotificationMessage(invoiceReferenceNotificationMessage2);

String abc2 = xstream.toXML(m1);

Answer 2

尝试使用此版本的Mail作为起点：

public class Mail {
    private  List<InvoiceReferenceNotificationMessage> invoiceReferenceNotificationMessages = new ArrayList<>();

    public List<InvoiceReferenceNotificationMessage> getInvoiceReferenceNotificationMessages() {
        return invoiceReferenceNotificationMessages;
    }

    public void addInvoiceReferenceNotificationMessage(InvoiceReferenceNotificationMessage invoiceReferenceNotificationMessage) {
        this.invoiceReferenceNotificationMessages.add(invoiceReferenceNotificationMessage);
    }

    public void addInvoiceReferenceNotificationMessages(List<InvoiceReferenceNotificationMessage> invoiceReferenceNotificationMessages) {
        this.invoiceReferenceNotificationMessages = invoiceReferenceNotificationMessages;
    }
}

您可以根据需要更改/添加方法......

java - 使用XStream创建多个对象

2 个答案: