java - 如何设置域类以从 RestTemplate 获取响应？

Question

我是 RestTemplate 新手，因此我正在寻求一些帮助来创建域类，该域类将使用 RestTemplate 获取响应。我调用 url 的 JSON 结构如下所示

[{
        "id": "2",
        "name": {
            "firstname": "John",
            "lastname": "Smith"
        },
        "address": {
            "street": "123 Main St",
            "city": "Perth",
            "state": "GA"
        }
    },
    {
        "child": {
            "info": {
                "firstname": "Bob",
                "age": "12"
            }
        }
    },
    {
        "child": {
            "info": {
                "firstname": "Jessica",
                "age": "22"
            }
        }
    },
    {
        "child": {
            "info": {
                "firstname": "Robert",
                "age": "9"
            }
        }
    },
    {
        "child": {
            "info": {
                "firstname": "Beth",
                "age": "9"
            }
        }
    }
]

我知道我需要创建类来处理结构 我为第一部分创建了一个类{}

class FirstPart {
  private String id;
  private String name;
  private String address;
}

然后其他部分重复(结构相同，我可以获得 0,1 或更多 {})。我如何创建我的结构才能获得响应？我相信我需要一个包含所有结构的类(我将其称为校长)

所以我的帖子将包括网址、正文和Principal.class

......

   RestTemplate restTemplate = new RestTemplate();
    Principal principal;
    principal= restTemplate.postForObject(url,requestBody,Principal.class);
    return principal

提前致谢!

Answer 1

按如下操作并对 JSON 进行小修改:

public class InfoDto{
    private String firstname;
    private Integer age; 

    //getters & setters
}

public class ChildDto{
    private InfoDto info;

    //getters & setters
}
public class AddressDto{
    private String street;
    private String city;
    private String state;

    //getters & setters
}

public class UserDetails{
    private String firstname;
    private String lastname;

    //getters & setters
}

public class RestResponseDto{
    private Long id;
    private UserDetails name;
    private AddressDto address;

    private List<ChildDto> childs;

    //getters & setters
}

JSON

[{
        "id": "2",
        "name": {
            "firstname": "John",
            "lastname": "Smith"
        },
        "address": {
            "street": "123 Main St",
            "city": "Perth",
            "state": "GA"
        }
    },
    childs:[{
        "child": {
            "info": {
                "firstname": "Bob",
                "age": "12"
            }
        }
    },
   ...............
    .............
    ...................
   ]
]

 RestTemplate restTemplate = new RestTemplate();
    RestResponseDto principal;
    principal= restTemplate.postForObject(url,requestBody,RestResponseDto.class);
    return principal