json 使用 resttemplate 解析

json parsing with resttemplate

我有一个 json 回复如下

{
    "@odata.context": "some context value here",
    "value": [{
        "@odata.id": "odata id value1",
        "@odata.etag": "W/\"CQEet/1EgOuA\"",
        "Id": "id1",
        "Subject": "subject1"
    }, {
        "@odata.id": "odata id value2",
        "@odata.etag": "W/\"CyEet/1EgOEk1t/\"",
        "Id": "id2",
        "Subject": "subject2"
    }]
}

如何使用 spring resttemplate 创建一个 bean class(MyMessage) 来解析 "value"?

RestTemplate rest = new RestTemplate();
ResponseEntity<MyMessage> response = rest.exchange(url, HttpMethod.GET, entity, MyMessage.class);

有人可以帮忙吗?

使用 @JsonProperty 注释 bean 属性,以便为 属性 设置 JSON 字段名称(如果不同)。

参见:

JsonProperty annotation and When is the @JsonProperty property used and what is it used for?

示例(为了简单起见,bean 属性为 public):

我的消息class:

public class MyMessage {

    @JsonProperty("@odata.context")
    public String context;

    @JsonProperty("value")
    public Value[] values;
}

值class:

// PascalCaseStrategy is to resolve Id and Subject properties
@JsonNaming(PascalCaseStrategy.class)
public class Value {

    @JsonProperty("@odata.id")
    public String odataId;

    @JsonProperty("@odata.etag")
    public String odataEtag;

    public String id;
    public String subject;
}