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我正在尝试解析通过对实例javax.ws.rs.core.Response进行的 GET API 调用获得的 XML 文档。javax.ws.rs.client.Client但我收到此错误，如下所示：

com.fasterxml.jackson.databind.exc.MismatchedInputException: Cannot construct instance of `com.fivetran.integrations.sage_intacct.model.AuditHistory` (although at least one Creator exists): no String-argument constructor/factory method to deserialize from String value ('apbill')
 at [Source: (StringReader); line: 1, column: 767] (through reference chain: com.fivetran.integrations.sage_intacct.model.AuditHistoryDataResponse["operation"]->com.fivetran.integrations.sage_intacct.model.AuditHistoryDataResponse$Operation["result"]->com.fivetran.integrations.sage_intacct.model.AuditHistoryDataResponse$Operation$Result["data"]->com.fivetran.integrations.sage_intacct.model.AuditHistoryDataResponse$Operation$Result$Data["audithistory"]->java.util.ArrayList[0])
    at com.fasterxml.jackson.databind.exc.MismatchedInputException.from(MismatchedInputException.java:63)
    at com.fasterxml.jackson.databind.DeserializationContext.reportInputMismatch(DeserializationContext.java:1343)
    at com.fasterxml.jackson.databind.DeserializationContext.handleMissingInstantiator(DeserializationContext.java:1032)
    at com.fasterxml.jackson.databind.deser.ValueInstantiator._createFromStringFallbacks(ValueInstantiator.java:371)
    at com.fasterxml.jackson.databind.deser.std.StdValueInstantiator.createFromString(StdValueInstantiator.java:323)
    at com.fasterxml.jackson.databind.deser.BeanDeserializerBase.deserializeFromString(BeanDeserializerBase.java:1373)
    at com.fasterxml.jackson.databind.deser.BeanDeserializer._deserializeOther(BeanDeserializer.java:171)
    at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserialize(BeanDeserializer.java:161)
    at com.fasterxml.jackson.databind.deser.std.CollectionDeserializer.deserialize(CollectionDeserializer.java:286)
    at com.fasterxml.jackson.databind.deser.std.CollectionDeserializer.deserialize(CollectionDeserializer.java:245)
    at com.fasterxml.jackson.databind.deser.std.CollectionDeserializer.deserialize(CollectionDeserializer.java:27)
    at com.fasterxml.jackson.databind.deser.impl.FieldProperty.deserializeAndSet(FieldProperty.java:136)
    at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserialize(BeanDeserializer.java:252)
    at com.fasterxml.jackson.databind.deser.impl.InnerClassProperty.deserializeAndSet(InnerClassProperty.java:90)
    at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserialize(BeanDeserializer.java:252)
    at com.fasterxml.jackson.databind.deser.impl.InnerClassProperty.deserializeAndSet(InnerClassProperty.java:90)
    at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserialize(BeanDeserializer.java:252)
    at com.fasterxml.jackson.databind.deser.impl.InnerClassProperty.deserializeAndSet(InnerClassProperty.java:90)
    at com.fasterxml.jackson.databind.deser.BeanDeserializer.vanillaDeserialize(BeanDeserializer.java:288)
    at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserialize(BeanDeserializer.java:151)
    at com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:4013)
    at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:3004)
    at com.fivetran.integrations.sage_intacct.SageIntacctApi.query(SageIntacctApi.java:95)
    at com.fivetran.integrations.sage_intacct.SageIntacctUpdater.update(SageIntacctUpdater.java:32)
    at com.fivetran.integrations.sage_intacct.SageIntacctService.update(SageIntacctService.java:65)
    at com.fivetran.integrations.sage_intacct.SageIntacctService.update(SageIntacctService.java:11)
    at com.fivetran.core.Service.update(Service.java:112)
    at com.fivetran.scripts.RunMock.lambda$updateCore2$12(RunMock.java:408)
    at com.fivetran.integrations.db.DbTimer.time(DbTimer.java:132)
    at com.fivetran.scripts.RunMock.lambda$updateCore2$13(RunMock.java:404)
    at java.lang.Thread.run(Thread.java:748)

这是通过响应收到的 XML，我正在尝试解析：

<?xml version="1.0" encoding="UTF-8"?>
<response>
    <control>
        <status>success</status>
        <senderid>****</senderid>
        <controlid>****</controlid>
        <uniqueid>false</uniqueid>
        <dtdversion>3.0</dtdversion>
    </control>
    <operation>
        <authentication>
            <status>success</status>
            <userid>****</userid>
            <companyid>****</companyid>
            <locationid></locationid>
            <sessiontimestamp>2020-03-04T15:34:12+00:00</sessiontimestamp>
            <sessiontimeout>2020-03-05T00:02:11+00:00</sessiontimeout>
        </authentication>
        <result>
            <status>success</status>
            <function>readByQuery</function>
            <controlid>4ea65c74-6f5a-445d-afa4-193ddbc9e0b0</controlid>
            <data listtype="audithistory" count="xxx" totalcount="xxx" numremaining="xxx" resultId="7765623331Xl-KdJcLu-MlRbvnEh3F@AAAAAc4">
                <audithistory>
                    <OBJECTTYPE>apbill</OBJECTTYPE>
                    <OBJECTKEY>2695</OBJECTKEY>
                    <USERID>admin</USERID>
                    <ACCESSTIME>04/30/2019 07:50:33</ACCESSTIME>
                    <ACCESSMODE>Create</ACCESSMODE>
                    <WORKFLOWACTION></WORKFLOWACTION>
                    <IPADDRESS>192.168.3.142</IPADDRESS>
                    <SOURCE>system</SOURCE>
                    <NOTES></NOTES>
                    <ID>apbill:2695:CXMf@QsGq23aoxHxufF1fLwAAABI</ID>
                    <ACTION_DETAILS></ACTION_DETAILS>
                </audithistory>
                <audithistory>
                    <OBJECTTYPE>apbill</OBJECTTYPE>
                    <OBJECTKEY>2696</OBJECTKEY>
                    <USERID>admin</USERID>
                    <ACCESSTIME>04/30/2019 07:50:33</ACCESSTIME>
                    <ACCESSMODE>Create</ACCESSMODE>
                    <WORKFLOWACTION></WORKFLOWACTION>
                    <IPADDRESS>192.168.3.142</IPADDRESS>
                    <SOURCE>system</SOURCE>
                    <NOTES></NOTES>
                    <ID>apbill:2696:CXMf@QsGq23aoxHxufF1fLwAAABI</ID>
                    <ACTION_DETAILS></ACTION_DETAILS>
                </audithistory>
                <audithistory>
                    <OBJECTTYPE>apbill</OBJECTTYPE>
                    <OBJECTKEY>2697</OBJECTKEY>
                    <USERID>admin</USERID>
                    <ACCESSTIME>05/01/2019 07:47:48</ACCESSTIME>
                    <ACCESSMODE>Create</ACCESSMODE>
                    <WORKFLOWACTION></WORKFLOWACTION>
                    <IPADDRESS>192.168.3.145</IPADDRESS>
                    <SOURCE>system</SOURCE>
                    <NOTES></NOTES>
                    <ID>apbill:2697:CXMlPI0DRiZxFRyT4zhOG6QAAABA</ID>
                    <ACTION_DETAILS></ACTION_DETAILS>
                </audithistory>
                <audithistory>
                    <OBJECTTYPE>apbill</OBJECTTYPE>
                    <OBJECTKEY>2698</OBJECTKEY>
                    <USERID>admin</USERID>
                    <ACCESSTIME>05/01/2019 07:47:48</ACCESSTIME>
                    <ACCESSMODE>Create</ACCESSMODE>
                    <WORKFLOWACTION></WORKFLOWACTION>
                    <IPADDRESS>192.168.3.145</IPADDRESS>
                    <SOURCE>system</SOURCE>
                    <NOTES></NOTES>
                    <ID>apbill:2698:CXMlPI0DRiZxFRyT4zhOG6QAAABA</ID>
                    <ACTION_DETAILS></ACTION_DETAILS>
                </audithistory>
                <audithistory>
                    <OBJECTTYPE>apbill</OBJECTTYPE>
                    <OBJECTKEY>2703</OBJECTKEY>
                    <USERID>admin</USERID>
                    <ACCESSTIME>05/13/2019 07:54:51</ACCESSTIME>
                    <ACCESSMODE>Create</ACCESSMODE>
                    <WORKFLOWACTION></WORKFLOWACTION>
                    <IPADDRESS>192.168.3.143</IPADDRESS>
                    <SOURCE>system</SOURCE>
                    <NOTES></NOTES>
                    <ID>apbill:2703:CXNkiyNsWQ4t5uGiof1TQpQAAABQ</ID>
                    <ACTION_DETAILS></ACTION_DETAILS>
                </audithistory>
                <audithistory>
                    <OBJECTTYPE>apbill</OBJECTTYPE>
                    <OBJECTKEY>2711</OBJECTKEY>
                    <USERID>admin</USERID>
                    <ACCESSTIME>05/31/2019 08:32:35</ACCESSTIME>
                    <ACCESSMODE>Create</ACCESSMODE>
                    <WORKFLOWACTION></WORKFLOWACTION>
                    <IPADDRESS>192.168.3.144</IPADDRESS>
                    <SOURCE>system</SOURCE>
                    <NOTES></NOTES>
                    <ID>apbill:2711:CXPDmoVV1YLVGVrbHHkQXoAAAAAY</ID>
                    <ACTION_DETAILS></ACTION_DETAILS>
                </audithistory>
                <audithistory>
                    <OBJECTTYPE>apbill</OBJECTTYPE>
                    <OBJECTKEY>2712</OBJECTKEY>
                    <USERID>admin</USERID>
                    <ACCESSTIME>05/31/2019 08:32:35</ACCESSTIME>
                    <ACCESSMODE>Create</ACCESSMODE>
                    <WORKFLOWACTION></WORKFLOWACTION>
                    <IPADDRESS>192.168.3.144</IPADDRESS>
                    <SOURCE>system</SOURCE>
                    <NOTES></NOTES>
                    <ID>apbill:2712:CXPDmoVV1YLVGVrbHHkQXoAAAAAY</ID>
                    <ACTION_DETAILS></ACTION_DETAILS>
                </audithistory>
                <audithistory>
                    <OBJECTTYPE>apbill</OBJECTTYPE>
                    <OBJECTKEY>2713</OBJECTKEY>
                    <USERID>admin</USERID>
                    <ACCESSTIME>06/01/2019 07:43:35</ACCESSTIME>
                    <ACCESSMODE>Create</ACCESSMODE>
                    <WORKFLOWACTION></WORKFLOWACTION>
                    <IPADDRESS>192.168.3.140</IPADDRESS>
                    <SOURCE>system</SOURCE>
                    <NOTES></NOTES>
                    <ID>apbill:2713:CXPIspoYfO8BxtOLDz7eNZgAAAAk</ID>
                    <ACTION_DETAILS></ACTION_DETAILS>
                </audithistory>
                <audithistory>
                    <OBJECTTYPE>apbill</OBJECTTYPE>
                    <OBJECTKEY>2714</OBJECTKEY>
                    <USERID>admin</USERID>
                    <ACCESSTIME>06/01/2019 07:43:36</ACCESSTIME>
                    <ACCESSMODE>Create</ACCESSMODE>
                    <WORKFLOWACTION></WORKFLOWACTION>
                    <IPADDRESS>192.168.3.140</IPADDRESS>
                    <SOURCE>system</SOURCE>
                    <NOTES></NOTES>
                    <ID>apbill:2714:CXPIspoYfO8BxtOLDz7eNZgAAAAk</ID>
                    <ACTION_DETAILS></ACTION_DETAILS>
                </audithistory>
            </data>
        </result>
    </operation>
</response>

我为映射上述 XML 而制作的 POJO。

审计历史.java

import com.fasterxml.jackson.dataformat.xml.annotation.JacksonXmlRootElement;

@JacksonXmlRootElement(localName = "audithistory")
public class AuditHistory {
    public String OBJECTTYPE;
    public String OBJECTKEY;
    public String USERID;
    public String ACCESSTIME;
    public String ACCESSMODE;
    public String WORKFLOWACTION;
    public String IPADDRESS;
    public String SOURCE;
    public String NOTES;
    public String ID;
    public String ACTION_DETAILS;
}

AuditHistoryDataResponse.java

import com.fasterxml.jackson.dataformat.xml.annotation.JacksonXmlProperty;
import com.fasterxml.jackson.dataformat.xml.annotation.JacksonXmlRootElement;
import java.util.List;

@JacksonXmlRootElement(localName = "response")
public class AuditHistoryDataResponse {
    public Control control;
    public Operation operation;

    public class Control
    {
        public String status;
        public String senderid;
        public String controlid;
        public String uniqueid;
        public String dtdversion;
    }

    public class Operation
    {
        public Authentication authentication;
        public Result result;

        public class Result
        {
            public String status;
            public String function;
            public String controlid;
            public Data data;

            public class Data
            {
                @JacksonXmlProperty(isAttribute = true)
                public String listtype;

                @JacksonXmlProperty(isAttribute = true)
                public String count;

                @JacksonXmlProperty(isAttribute = true)
                public String totalcount;

                @JacksonXmlProperty(isAttribute = true)
                public String numremaining;

                @JacksonXmlProperty(isAttribute = true)
                public String resultId;

                public List<AuditHistory> audithistory;
            }
        }

        public class Authentication
        {
            public String status;
            public String userid;
            public String companyid;
            public String locationid;
            public String sessiontimestamp;
            public String sessiontimeout;
        }
    }
}

进行 API 调用和接收响应的代码

    public void query(SageIntacctEndpoint endpoint) {
        MultivaluedMap<String, Object> headerParams = new MultivaluedHashMap<>();

        headerParams.add("Accept", "application/xml");
        headerParams.add("Content-Type", "application/xml");

        //POJO that is used as the data that is passed as a part of the cURL request
        DataRequest request = setupDataRequestPayload(endpoint);
        try {
            // MAPPER is the XmlMapper object
            String XML = MAPPER.writeValueAsString(request);

            Response response =
                    HTTP.target(API_URL)
                            .request(MediaType.APPLICATION_XML_TYPE)
                            .headers(headerParams)
                            .post(Entity.entity(XML, MediaType.APPLICATION_XML_TYPE));

            AuditHistoryDataResponse xmlObject = MAPPER.readValue(response.readEntity(String.class), AuditHistoryDataResponse.class);

            System.out.println ("Checkpoint");

        } catch (Exception ex) {
            ex.printStackTrace();
        }
    }

例程的简要说明query：我正在使用 JAVA 执行 cURL 请求，并将 XML 作为有效负载部分中的字符串发送。

我展示的 POJO 可能会有所不同。它们都是公共变量，没有构造函数、getter 和 setter，但到目前为止它们一直为我工作，即当有多个相同类型的节点时，如 XML 中所示。

但是我在这里错过了什么？这是我第一次关注杰克逊。是否有任何我遗漏或被错误使用的注释？

我在努力解决这个问题时参考了几个参考资料：

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