Question

我遇到了反序列化以下json的问题

{
      "GrpHdr": {      
 "MsgId": "Message-1",
        "CreDtTm": "2018-03-02T10:15:30+01:00[Europe/Paris]",
        "NbOfTxs": "1",
        "InitgPty": {
          "Nm": "Remitter"
        }
        },

  "PmtInf": [
    {
      "PmtInfId": "1"
    },
    {
      "PmtInfId": "2"
    }
  ]

}

我创建了一个MixIn类：

公共抽象类CustomerCreditTransferInitiationMixIn { public PaymentInstructions paymentInstructions;

@JsonCreator
public CustomerCreditTransferInitiationMixIn(
        @JsonProperty("GrpHdr") GroupHeader GrpHdr,
        @JsonProperty("PmtInf") List<PaymentInstruction> PmtInf

        ) {

    this.paymentInstructions = PaymentInstructions.valueOf(PmtInf);

}

@JsonProperty("GrpHdr")
abstract GroupHeader getGroupHeader();

@JsonProperty("PmtInf")
abstract List<PaymentInstruction> getPaymentInstructions();

}

我在这种情况下反序列化组头没有问题。映射不同的名称。但在PmtInf案中我感到困惑。这是一个我想要反序列化为PaymentInstructions列表的列表。但PmtInf是一种付款方式。

我创建了一个测试：

@Test
public void JacksonMixinAnnotationTestJsonIsoFileFromTester() throws JsonProcessingException, Throwable {

    CustomerCreditTransferInitiation customerCreditTransferInitiation;

    String jsonFile = "testWithShortNames";

    InputStream inputStream = new ClassPathResource(jsonFile + ".json").getInputStream();

    ObjectMapper objectMapper = buildMapper();
    objectMapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);

    objectMapper.registerModule(new JavaTimeModule());

    objectMapper.addMixIn(CustomerCreditTransferInitiation.class, CustomerCreditTransferInitiationMixIn.class);
    objectMapper.addMixIn(GroupHeader.class, GroupHeaderMixIn.class);
    objectMapper.addMixIn(PaymentInstruction.class, PaymentInstructionMixIn.class);
    objectMapper.addMixIn(PartyIdentification.class, PartyIdentificationMixIn.class);

    customerCreditTransferInitiation = objectMapper.readValue(inputStream, CustomerCreditTransferInitiation.class);


    //GroupHeader
    Assert.assertNotNull(customerCreditTransferInitiation.getGroupHeader());
    Assert.assertNotNull(customerCreditTransferInitiation.getGroupHeader().getMessageId());
    Assert.assertNotNull(customerCreditTransferInitiation.getGroupHeader().getCreationDateTime());
    Assert.assertNotNull(customerCreditTransferInitiation.getGroupHeader().getNumberOfTransactions());
    Assert.assertNotNull(customerCreditTransferInitiation.getGroupHeader().getInitiatingParty());
    Assert.assertNotNull(customerCreditTransferInitiation.getGroupHeader().getInitiatingParty().getName());

    //PaymentInstructions
    Assert.assertNotNull(customerCreditTransferInitiation.getPaymentInstructions());}

收到以下错误：

com.fasterxml.jackson.databind.exc.UnrecognizedPropertyException：无法识别的字段“PmtInfId”（类 com.seb.payment.iso.domain.PaymentInstruction），未标记为可忽略的（19个已知属性：“paymentInformationId”， “paymentMethod”，“created”，“paymentTypeInformation”，“controlSum”， “debtorAgent”，“instructionForDebtorAgent”，“numberOfTransactions”， “requestExecutionTime”，“debtorAccount”，“creditTransferTransactions”， “debtorAgentAccount”，“batchBooking”，“poolingAdjustmentDate”， “ultimateDebtor”，“chargeBearerType”，“debtor”，“chargeAccount”， “chargeAccountAgent”]）在[来源：UNKNOWN; line：-1，column：-1] （通过参考链： com.seb.payment.iso.domain.CustomerCreditTransferInitiation [ “PmtInf”] - ＆GT; com.seb.payment.iso.domain.PaymentInstruction [ “PmtInfId”]）

Answer 1

在我们的例子中，我们在abstract iterable中实现了自己的反序列化器。上： ObjectReader objectReader = ObjectMapperFactory.instance（）。readerFor（this.itemClass）;

MixedIn类丢失

使用jackson mixin类获取对象列表

1 个答案: