英文:
How to convert a JsonObject object to a list of another object type
问题
我有一个将返回类似以下内容的对象列表的服务：
{
"myobject": [
{
"first": "10",
"second": 5.000
},
{
"first": "20",
"second": 20.000
},
{
"first": "30",
"second": 50.000
}
]
}
我使用以下请求获取此对象：
public String getMyObject() {
String url = UriComponentsBuilder.fromHttpUrl(myUrl);
ResponseEntity<String> response = restTemplate.getForEntity(url, String.class);
return response.getBody();
}
我需要将此列表放入此类型的对象列表中：
@Getter
@Setter
public class MyObject {
private String firstParam;
private String secondParam;
}
如何实现？有人可以帮助我吗？
英文:
I have a service that will return a list of objects something like this:
{
"myobject": [
{
"first" : "10",
"second": 5.000
},
{
"first" : "20",
"second": 20.000
},
{
"first" : "30",
"second": 50.000
}
]
}
I take this object with this request
public String getMyObject() {
String url = UriComponentsBuilder.fromHttpUrl(myUrl);
ResponseEntity<String> response = restTemplate.getForEntity(url, String.class);
return response.getBody();
}
I need to put this list inside a list of Objects of this type:
@Getter
@Setter
public class MyObject{
private String firstParam
private String secondParam
}
How to do this? Can anybody help me?
答案1
得分: 0
这里的主要问题是您在这行代码中期望的响应对象是什么：
ResponseEntity<myObject[]> response = restTemplate.getForEntity(url , myObject[].class);
相反，您应该请求一个 MyDTO 对象，因为您的控制器也在返回一个 MyDTO 对象：
ResponseEntity<MyDTO> response = restTemplate.getForEntity(url , MyDTO.class);
然后通过从 ResponseEntity 响应对象中提取 MyDTO 对象，在提取 MyDTO 对象后使用以下代码来检索列表：
List<MyObject> myList = myDTO.getMyObject();
英文:
The main problem here is what you expect as a response object at this line:
ResponseEntity<myObject[]> response = restTemplate.getForEntity(url , myObject[].class);
Instead you should ask for a MyDTO object since also your controller is returning a MyDTO object:
ResponseEntity<MyDTO> response = restTemplate.getForEntity(url , MyDTO.class);
and retrieving the list with a
List<MyObject> myList = myDTO.getMyObject();
after extracting the MyDTO object from the ResponseEntity response object.
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