java - Spring 启动: InvalidTypeIdException When Trying to Parse Json

Question

我正在尝试将 POJO 映射到我收到的 JSON 响应；但是，我不断收到此错误:

com.fasterxml.jackson.databind.exc.InvalidTypeIdException: Could not resolve type id 'order' as a subtype of `com.issbou.entity.OrdersList`: known type ids = [orders]

我从服务器获得的 Json 响应以及我尝试映射到我的 POJO 类的 Json 响应是:

{
  "orders": [
    {
      "id": 2039665099999,
      "email": "isx@gmail.com"
    },
    {
      "id": 2039665066666,
      "email": "yzy@gmail.com"
    }
            ]
}

订单:代表单个订单的Java实体类:

import com.fasterxml.jackson.annotation.JsonProperty;
import lombok.Getter;
import lombok.Setter;

@Setter
@Getter
public class Order {

    @JsonProperty("id")
    private long id;

    @JsonProperty("email")
    private String email;

}

OrderList:创建一系列单个订单的 Java 实体类:

import com.fasterxml.jackson.annotation.JsonProperty;
import com.fasterxml.jackson.annotation.JsonTypeInfo;
import com.fasterxml.jackson.annotation.JsonTypeName;
import lombok.Getter;
import lombok.Setter;


@JsonTypeName("orders")
@JsonTypeInfo(include = JsonTypeInfo.As.WRAPPER_OBJECT ,use = JsonTypeInfo.Id.NAME)
@Setter
@Getter
public class OrdersList {

    private List<Order> singleOrder;


}

服务等级:

@Service
public class BasicAuth {

   public ResponseEntity<OrdersList> orderDetails (@RequestBody OrdersList order){

       String username = "username";
       String password = "password";
       HttpHeaders headers = new HttpHeaders();
       headers.setBasicAuth(username, password);

       // request url
       String url = "https://test.myshopify.com/admin/orders.json";

       RestTemplate restTemplate = new RestTemplate();


       HttpEntity request = new HttpEntity(headers);

       ResponseEntity<OrdersList> response = restTemplate.exchange(
               url, HttpMethod.GET, request, OrdersList.class);

       return response;
   }

}

休息 Controller :

@RestController
public class Controller {

    @Autowired
    BasicAuth basicAuth;

    @GetMapping("/lok")
    @ResponseStatus(HttpStatus.FOUND)
    public ResponseEntity<OrdersList> getBasicAut(OrdersList ordersList){

        return basicAuth.orderDetails(ordersList);
    }

}

Answer 1

您的 OrdersList 类不包含列表。如果您修改 OrdersList，使其看起来像这样:

import java.util.Collections.List;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.fasterxml.jackson.annotation.JsonTypeInfo;
import com.fasterxml.jackson.annotation.JsonTypeName;
import lombok.Getter;
import lombok.Setter;

@JsonTypeName("orders")
@Setter
@Getter
public class OrdersList {

    private List<Order> ordersList;
}

应该可以。

我宁愿做的是接受 Controller 中的订单列表

@RestController
public class Controller {

    @Autowired
    BasicAuth basicAuth;

    @GetMapping("/lok")
    @ResponseStatus(HttpStatus.FOUND)
    public ResponseEntity<List<Order>> getBasicAut(List<Order> ordersList){

        return basicAuth.orderDetails(ordersList);
    }
}

然后像这样转移订单:

[
    {
      "id": 2039665099999,
      "email": "isx@gmail.com"
    },
    {
      "id": 2039665066666,
      "email": "yzy@gmail.com"
    }
]