Spring boot 如何使用反应式couchbase获取对象的嵌套列表？

我最近开始回顾/学习一些关于反应式couchbase的知识，我正在尝试使用该技术和spring data和spring boot实现一个示例，我有以下模型：

@Document
public class Person {
    @Id
    private String id;
    @Field
    private String name;
    @Field
    private String lastName;
    @Field
    private List<Address> address;
    // Getters & Setters
}

@Document
public class Address {
    @Id
    private String code;
    @Field
    private String mainStreet;
    @Field
    private String secondStreet;
    // Getters & Setters
}

当我呼叫服务时，例如：

http://localhost:8080/sample_couchbase/person/1/addresses

我想得到这个：

"address": [
    {
      "code": "A1",
      "mainStreet": "AAA",
      "secondStreet": "BBB",
      "phone": "11111",
      "place": "home"
    },
    {
      "code": "A2",
      "mainStreet": "CCC",
      "secondStreet": "DDD",
      "phone": "22222",
      "place": "work"
    },
    {
      "code": "A3",
      "mainStreet": "EEE",
      "secondStreet": "FFF",
      "phone": "33333",
      "place": "treasury"
    }
  ]

我设想在存储库中创建一个类似以下内容的方法：

Mono<Person> findById(String id);

Mono-findById（字符串id）；

---

在服务层，我想象得到整个对象，然后按地址过滤，但这与我以前的做法有所不同，现在我使用Mono和Flux，而不是简单的对象或列表，所以我不知道怎么做，有人能给我一个主意吗？还是有更好的解决方案？

我找到了一种简单的方法来检索特定人员的地址，我使用了一个查询，其中我指定了要检索的内容：

@Query("SELECT addresses, META(sample).id as _ID, META(sample).cas as _CAS FROM `sample` WHERE id = $1")
Flux<Person> findAddressesByPerson(String id);

@Query（“选择地址，META（sample）.id作为_-id，META（sample）.cas作为_-cas来自'sample'，其中id=$1”）
Flux FindAddressByPerson（字符串id）；

我注意到有必要将

META（sample）.id指定为_id

和

META（sample）.cas指定为_cas

属性，以避免以下错误：

org.springframework.data.couchbase.core.CouchbaseQueryExecutionException:无法为N1QL到实体的映射检索足够的元数据，是否选择了_ID和_CAS？；嵌套异常是rx.exceptions.OnErrorThrowable$OnNextValue:OnError，同时发出onNext值：com.couchbase.client.java.query.DefaultAsyncN1qlQueryRow.class

如果您想更详细地了解实现，以下是示例：

{
  "id": "1",
  "name": "Scooby",
  "lastName": "Doo",
  "address": [
    {
      "code": "A1",
      "mainStreet": "AAA",
      "secondStreet": "BBB",
      "phone": "11111",
      "place": "home"
    },
    {
      "code": "A2",
      "mainStreet": "CCC",
      "secondStreet": "DDD",
      "phone": "22222",
      "place": "work"
    },
    {
      "code": "A3",
      "mainStreet": "EEE",
      "secondStreet": "FFF",
      "phone": "33333",
      "place": "treasury"
    }
  ],
  "classType": "com.jcalvopinam.model.Person"
}

"address": [
    {
      "code": "A1",
      "mainStreet": "AAA",
      "secondStreet": "BBB",
      "phone": "11111",
      "place": "home"
    },
    {
      "code": "A2",
      "mainStreet": "CCC",
      "secondStreet": "DDD",
      "phone": "22222",
      "place": "work"
    },
    {
      "code": "A3",
      "mainStreet": "EEE",
      "secondStreet": "FFF",
      "phone": "33333",
      "place": "treasury"
    }
  ]

Mono<Person> findById(String id);

@Query("SELECT addresses, META(sample).id as _ID, META(sample).cas as _CAS FROM `sample` WHERE id = $1")
Flux<Person> findAddressesByPerson(String id);