如何在 Spring 中向对象添加列表

Question

我有这个对象类，它有一个客户列表作为属性：

@Data
@NoArgsConstructor
@AllArgsConstructor
public class PeopleDTO {

    private String processType;
    private String operation;
    private String entity;
    private String entityType;
    private Long id;
    private Document document;

    @Getter
    @Setter
    class Customer {
        private String systemId;
        private String customerId;
    }
    private List<Customer> customers;
}

使用 webclient 调用另一个微服务来检索此列表，如下所示：

public Mono<CuCoPerson> getCuCoPerson(Integer cucoId, String GS_AUTH_TOKEN) {
        WebClient webClient = WebClient.create();

        return webClient.get()
                .uri(GET_RELATION_BY_ID + cucoId)
                .header("Accept", "application/json")
                .header("Authorization", GS_AUTH_TOKEN)
                .retrieve()
                .bodyToMono(CuCoPerson.class)
                .map(cuCoPerson -> {
                    List<CustomerRelation> matches = cuCoPerson.getRelatedCustomers()
                            .stream()
                            .filter(relation -> relation.getSystemId().equals(400) || relation.getSystemId().equals(300) || relation.getSystemId().equals(410))
                            .filter(relation -> relation.getCustomerId().contains("F"))
                            .collect(Collectors.toList());
                    cuCoPerson.setRelatedCustomers(matches);
                    return cuCoPerson;
                });
    }

此方法返回一个 cucoPerson 如下：

{
    "id": 1,
        "relatedCustomers": [
            {
                "customerId": "xxx",
                "systemId": 999
            }
        ]
}

所以现在我想将此对象添加到我的 PeopleDTO 类中，但我不知道如何。 这就是我所做的儿子远（硬编码）：

public PeopleDTO createPeople(Long id) {
        PeopleDTO people = new PeopleDTO();
        people.setProcessType("ONLINE");
        people.setOperation("UPDATE");
        people.setEntity("DOCUMENT");
        people.setEntityType("DOCUMENT");
        people.setIdCuco(id);
        people.setDocument(new Document());
        people.setCustomers(......);
    }

如您所见，我不知道如何在最后一行添加 Mono。

预期的结果应该是这样的：

{
    "type": "ONLINE",
    "operation": "UPDATE",
    "id": 1,
    "entity": "DOCUMENT",
    "entityType": "NIE",
    "documents": {
        "id": 1,
        "additionals": {
            "issuing_authority": "Spain",
            "country_doc": "ES",
            "place_of_birth": "",
            "valid_from": "1995-08-09",
            "valid_to": "0001-01-01"
        },
        "code": "X12345",
        "typeDocument": "NIE"
    },
    "id": 1,
    "relatedCustomers": [
        {
            "customerId": "xxx",
            "systemId": 999
        }
    ]
}

Answer 1

首先，创建一个客户列表，例如：

List<Customer> customers=new ArrayList<>;

然后使用循环将所有客户一一添加到其中，然后您可以直接将其添加到您的对象中，例如

people.setCustomers(customers);

您的对象分配应类似于：

public PeopleDTO createPeople(Long id) {
        PeopleDTO people = new PeopleDTO();
        people.setProcessType("ONLINE");
        people.setOperation("UPDATE");
        people.setEntity("DOCUMENT");
        people.setEntityType("DOCUMENT");
        people.setIdCuco(id);
        people.setDocument(new Document());

        List<Customer> customers=new ArrayList<>;
//add data to customer
        people.setCustomers(customers);
    }