Question

我有订单模型

@Document(collection="order")
public class Order {
  @Id
  String id;

  String desc;

  String orgId;
}

每个OrgId都与组织对象相关联

@Document(collection="organization")
public class Organization {

    @Id
    String id;

    String desc;

    String ownerEmail;
}

我的订单DTO是

public class OrderDTO {

    String id;

    String desc;

    Organization org;

}

我想在Spring反应中返回Flux和Mono用于OrderDTO。

@RestController
@RequestMapping("orders")
public class OrderController {

    @Autowired
  private OrderService service;

    @Autowired
  private OrganizationService orgService;

    @GetMapping
    public Flux<OrderDTO> findAll() {
        return service.findAll(); // wanted step for Flux<Order> to Flux<OrderDTO>
    }

    @GetMapping("/{id}")
    public Mono<OrderDTO> findOne(@PathVariable String id) {
        return service.findOne(id); // wanted step for Mono<Order> to Mono<OrderDTO>
    }

}

Answer 1

首先尝试理清您的想法和步骤。

创建模型Order和Organization
根据数据库的实现为每个模型创建存储库，将OrderRepository和OrganizationRepository extends设为ReactiveMongoRepository或{ {1}}
```
ReactiveCrudRepository
```

创建控制器端点

import org.springframework.data.mongodb.repository.ReactiveMongoRepository;
import org.springframework.stereotype.Repository;

@Repository
public interface OrderRepository extends ReactiveMongoRepository<Order, String> {
   // Spring Boot automatically add  an implementation of this interface called SimpleOrderRepository at runtime.

  // So you get all the CRUD methods on the Document readily available to you without needing to write any code. Following are some of the methods available from SimpleReactiveMongoRepository -

  // reactor.core.publisher.Flux<T>  findAll(); 
  // reactor.core.publisher.Mono<T>  findById(ID id); 
  // <S extends T> reactor.core.publisher.Mono<S>  save(S entity); 
  // reactor.core.publisher.Mono<Void>   delete(T entity);

  // Notice that all the methods are asynchronous and return a publisher in the form of a Flux or a Mono type.
}

@Repository
public interface OrganizationRepository extends ReactiveMongoRepository<Organization, String> {

}

查看example和＆doc以获取更多说明。

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1 个答案: