spring - RestTemplate忽略@JsonIgnoreProperties(ignoreUnknown = true)批注

Question

RestTemplate的getForObject方法将忽略类上的@JsonIgnoreProperties(ignoreUnknown = true)批注。

例如。为了

@JsonIgnoreProperties(ignoreUnknown = true)
public class Stock extends AbstractSObject
{
  // fields
}

和

RestTemplate rest = new RestTemplate();
Stock s = rest.getForObject("address", Stock.class);

我收到以下错误

Could not read JSON: Unrecognized field "SomeField" (class sandbox.Stock), not marked as ignorable

Answer 1

Spring的RestTemplate需要com.fasterxml.jackson.annotation.JsonIgnoreProperties。

如果您将旧包中的org.codehaus.jackson.annotate.JsonIgnoreProperties注释用于其他目的，则可以手动设置RestTemplate以忽略未知属性:

RestTemplate rest = new RestTemplate();

ObjectMapper lax = new ObjectMapper().configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);

MappingJacksonHttpMessageConverter c = new MappingJacksonHttpMessageConverter();
c.setObjectMapper(lax);

List<HttpMessageConverter<?>> list = new ArrayList<>();
list.add(c);

rest.setMessageConverters(list);