Android

Question

我正在使用 SimpleXML 框架在我的 Android 应用程序中解析 xml。我无法正确解析 @ElementList。

xml的片段：

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<SaleToPOIResponse>
    <MessageHeader (...) />
    <ReconciliationResponse  ReconciliationType="SaleReconciliation">
        <Response Result="Success"/>
        <TransactionTotals PaymentInstrumentType="Card">
            <PaymentTotals TransactionType="Debit" TransactionCount="182" TransactionAmount="4.17"/>
            <PaymentTotals TransactionType="Credit" TransactionCount="1" TransactionAmount="2.01"/>
        </TransactionTotals>
    </ReconciliationResponse>
</SaleToPOIResponse>

我的类样子：

ReconciliationResponseType.java:

 @Root
    @Order(elements = {
            "Response",
            "TransactionTotals"
    })
    public class ReconciliationResponseType {

        @Element(name = "Response", required = true)
        protected ResponseType response;
        @ElementList(name = "TransactionTotals", inline = true, required = false)
        protected List<TransactionTotalsType> transactionTotals;
        @Attribute(name = "ReconciliationType", required = true)
        protected String reconciliationType;

    // getters and setters
    }

TransactionTotalsType.java:

  @Root
    @Order(elements = {
           "PaymentTotals",
           "LoyaltyTotals"
    })
    public class TransactionTotalsType {

        @ElementList(name = "PaymentTotals", inline = true, required = false)
        protected List<PaymentTotalsType> paymentTotals;
        @Attribute(name = "PaymentInstrumentType", required = true)
        protected String paymentInstrumentType;

    // getters and setters
    }

我使用方法解析它：

public static SaleToPOIResponse fromXMLString(String xmlResponse) {
    Reader reader = new StringReader(xmlResponse);

    Serializer serializer = new Persister();
    try {
        SaleToPOIResponse response = serializer.read(SaleToPOIResponse.class, reader, false);
        return response;
    } catch (Exception e) {
        Log.e(TAG, "Exception during parsing String XML to SaleToPOIResponse: ", e);
    }
    return null;
}

但每次出现异常时，有序元素 'TransactionTotals' 都会丢失，即使 1) 不需要它 2) 它确实存在于已解析的 xml

中

org.simpleframework.xml.core.ElementException: Ordered element 'TransactionTotals' missing for class pl.novelpay.epas.generated.saletopoimessages.ReconciliationResponseType

当我评论来自@Order 的'TransactionTotals' 时，xml 被无一例外地解析，但结果中提交的TransactionTotals 为空。我在这里错过了什么？

Answer 1

我在阅读此处类似问题的答案时发现了问题所在： https://sourceforge.net/p/simple/mailman/message/25699359/

我使用的是 name 而不是 entry。所以 ElementList 属性应该如下所示：

 @ElementList(entry= "PaymentTotals", inline = true, required = false)
 protected List<PaymentTotalsType> paymentTotals;

现在完美运行了。

Android - SimpleXML 框架无法解析@ElementList

Android - SimpleXML framework cannot parse @ElementList

java

xml

xml-parsing

simple-framework