上下文:
我有2个webapps:
都通过webservice进行通信。我正试图在json的webservice webapp中生成一个objet(CounterDTO),如下所示:
ObjectMapper mapper = new ObjectMapper(); mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, 假); CounterDTO counterDTO = mapper.readValue(json.get(objName).toString(),CounterDTO.class);
错误:
当我尝试用json构建一个objet时,我有这个错误:
java.lang.IllegalArgumentException:无法处理托管/返回 引用'entreprise-agency':后引用类型(java.util.Set)没有 与托管类型兼容(com.mypackage.Agency)
发送JSON:
{“id”:null,“code”:“SKYUE586”,“name”:“name 1”}
我有3个这样的实体:
@Entity
@Table(name = "AGENCY")
public class Agency {
...
@ManyToOne(optional = false)
@JoinColumn(name = "ID_Entreprise")
@JsonManagedReference(value = "entreprise-agency")
private Entreprise entreprise;
@OneToMany(mappedBy = "agency", cascade = CascadeType.ALL, fetch = FetchType.EAGER)
@JsonBackReference(value = "agency-counter")
private Set<Counter> counters = new HashSet<Counter>();
...
}
Entity
@Table(name = "COUNTER")
public class Counter {
...
@ManyToOne(optional = false)
@JoinColumn(name = "ID_Agence")
// @JsonBackReference
@JsonManagedReference(value = "agency-counter")
private Agency agency;
...
}
@Entity
@Table(name = "ENTREPRISE")
public class Entreprise {
...
@OneToMany(mappedBy = "entreprise", cascade = CascadeType.ALL, fetch = FetchType.EAGER)
@JsonBackReference(value = "entreprise-agency")
private Set<Agency> agencies = new HashSet<Agency>();
...
}
和DTO
public class CounterDTO {
private Integer id;
private String code;
private String name;
...
}
问题:
如何正确处理托管/后退杰克逊参考?
我也尝试在我的实体上使用此标记
@JsonIdentityInfo(generator = ObjectIdGenerators.PropertyGenerator.class,property =“id”)
由于