来自Spring RestClient和Jackson的嵌套JSON对象

我有一个REST Client，它将从端点取回JSON。我只想获取data []中的内容。

{
    "responseStatus": "SUCCESS",
    "responseDetails": {
        "limit": 1000,
        "offset": 0,
        "size": 2,
        "total": 2
    },
    "data": [
        {
            "id": "00P000000001M01",
            "name__v": "Foo",
            "status__v": [
                "active__v"
            ],
            "abbreviation__c": "F170053",
            "internal_name__c": "Foo",
            "therapeutic_area__c": [
                "neurology__c"
            ],
            "external_id__v": "84",
            "generic_name__c": "Foo",
            "scientific_name__c": null
        },
        {
            "id": "00P000000001N01",
            "name__v": "Bar",
            "status__v": [
                "active__v"
            ],
            "abbreviation__c": "B333334",
            "internal_name__c": "Bar",
            "therapeutic_area__c": [
                "bone_muscle_joint__c"
            ],
            "external_id__v": "101",
            "generic_name__c": "Bar",
            "scientific_name__c": null
        }
    ]
}

因为我将进行其他调用，这些调用将返回data []中的不同字段，所以我想将每种类型映射到POJO，所以我使用了@JSONProperty

@JsonIgnoreProperties(ignoreUnknown = true)
public class Product extends VBase{
    private String fNumber;
    private String genericName;
    private String scientificName;
    private String therapeuticArea;


    public String getFNumber() {
        return fNumber;
    }

    @JsonProperty("abbreviation__c")
    private void unpackFNumber(Map<String,Object> abbreviation__c){
        fNumber = ((Map<String,Object>)abbreviation__c.get("data")).get("abbreviation__c").toString();
    }
    public void setLyNumber(String fNumber) {
        this.fNumber = fNumber;
    }

    public String getGenericName() {
        return genericName;
    }


    @JsonProperty("generic_name__c")
    private void unpackGenericName(Map<String,Object> generic_name__c){
        genericName = ((Map<String,Object>)generic_name__c.get("data")).get("generic_name__c").toString();
    }
    public String getScientificName() {
        return scientificName;
    }

    @JsonProperty("scientific_name__c")
    private void unpackScientificName(Map<String,Object>sName){
        scientificName = ((Map<String,Object>)sName.get("data")).get("scientific_name__c").toString();
    }

    public String getTherapeuticArea() {
        return therapeuticArea;
    }

    @JsonProperty("therapeutic_area__c")
    private void unpackTheraputicArea(Map<String,Object>tArea){
        therapeuticArea=((Map<String,Object>)tArea.get("data")).get("therapeutic_area__c").toString();
    }
}

我尝试了各种方法来获取数据[]。

 HttpEntity<MultiValueMap<String, String>> request = new HttpEntity<>(map, headers);
        RestTemplate restTemplate = new RestTemplate(clientHttpReq);
        ResponseEntity<Product[]> response = restTemplate.exchange(url, HttpMethod.GET, request,Product[].class);

//ResponseEntity<Product[]> response = restTemplate.postForEntity(url,request,Product[].class ,parmMap);

我一直试图避免的是使用Data []作为字段来创建ResponseDetail POJO。我知道它会工作，但是因为data []中的字段将根据端点而变化。

我可以使用带有列表的包装器类来表示data []，因为所有POJO都将扩展VBase吗？

这是例外：

Exception in thread "main" org.springframework.web.client.RestClientException: Error while extracting response for type [class [Lcom.lilly.models.Product;] and content type [application/json;charset=UTF-8]; nested exception is org.springframework.http.converter.HttpMessageNotReadableException: JSON parse error: Cannot deserialize instance of `com.lilly.models.Product[]` out of START_OBJECT token; nested exception is com.fasterxml.jackson.databind.exc.MismatchedInputException: Cannot deserialize instance of `com.lilly.models.Product[]` out of START_OBJECT token
 at [Source: (PushbackInputStream); line: 1, column: 1]