[英]Jackson mapping json to objects
可以说我有这样的对象
{
first: "value",
second: "value",
third: {
first: "first value third",
second: "second value third",
fourth: {
first: "second nested object",
second: "second nested object"
},
fifth: {
first: "another second nested object",
second: "another second nested object"
}
},
sixth: {
first: "value",
second: "value"
}
}
我正在使用RestTemplate类从URL中获取json,如下所示:
RestTemplate rest = new RestTemplate();
String result = rest.getForObject(ENDPOINT_URL, String.class);
之后,我想使用杰克逊对象映射器将json字符串转换为对象
import com.fasterxml.jackson.databind.ObjectMapper
将实体类作为第二个参数传递
ObjectMapper mapper = new ObjectMapper();
object = mapper.readValue(result, ExampleJson.class);
问题是我应该如何编写ExampleJson实体来处理显示的json? 我尝试过这样的课程,但似乎没有用。
public class ExampleJson {
private String first;
private String second;
private Third third;
private Sixth sixth;
// Getters && Setters
public static class Third {
private String first;
private String second;
private Fourth fourth
private Fifth fifth
// Getters && Setters
private Fourth {
private String first;
private String second;
// Getters && Setters
}
private Fifth {
private String first;
private String second;
// Getters && Setters
}
}
public static class Sixth {
private String first;
private String second;
// Getters && Setters
}
}
我收到这样的异常:
com.fasterxml.jackson.databind.exc.UnrecognizedPropertyException:
Unrecognized field "fourth"
费耶
@JsonIgnoreProperties(ignoreUnknown = true)
解决了这个问题!
谢谢。
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.