我正在为某些JPA注释的实体构建Spring存储库。我创建了一个信息库:具有MVC存储库的Spring数据JPA
public interface AppRepository extends PagingAndSortingRepository<App, String>
{
}
App类如下所示:
@Entity
public class App implements Serializable
{
@Id
private String appId;
@OneToMany(mappedBy = "app")
private List<AgentUser> agentusers;
@OneToMany(mappedBy = "app")
private List<AppFacet> appfacets;
// getters and setters go here
}
其中使用agentuser和AppFacet举行名为app参考属性对一个App对象。在使用agentuser类,我已经改变了RestResource REL:
@Entity
public class AgentUser
{
...
@ManyToOne
@JoinColumn(name = "AppId")
@RestResource(rel = "agentUserToApp", exported = false)
private App app;
// other properties go here
}
我收到以下错误消息,而查询/应用程序路径:
org.springframework.http.converter.HttpMessageNotWritableException: Could not write content: Infinite recursion (StackOverflowError) (through reference chain: org.springframework.hateoas.PagedResources["_embedded"]);
你知道可能会造成什么呢?请注意,我在数据库中只有一个App对象,仅用于测试目的,没有其他类型的对象。
更新
的轨迹是:
com.fasterxml.jackson.databind.ser.std.BeanSerializerBase.serializeFields(BeanSerializerBase.java:677)
com.fasterxml.jackson.databind.ser.BeanSerializer.serialize(BeanSerializer.java:156)
com.fasterxml.jackson.databind.ser.DefaultSerializerProvider.serializeValue(DefaultSerializerProvider.java:129)
com.fasterxml.jackson.databind.ObjectMapper.writeValue(ObjectMapper.java:2240)
org.springframework.http.converter.json.AbstractJackson2HttpMessageConverter.writeInternal(AbstractJackson2HttpMessageConverter.java:231)
org.springframework.http.converter.AbstractHttpMessageConverter.write(AbstractHttpMessageConverter.java:208)
org.springframework.web.servlet.mvc.method.annotation.AbstractMessageConverterMethodProcessor.writeWithMessageConverters(AbstractMessageConverterMethodProcessor.java:161)
org.springframework.web.servlet.mvc.method.annotation.AbstractMessageConverterMethodProcessor.writeWithMessageConverters(AbstractMessageConverterMethodProcessor.java:101)
org.springframework.web.servlet.mvc.method.annotation.RequestResponseBodyMethodProcessor.handleReturnValue(RequestResponseBodyMethodProcessor.java:167)
而在这之后,很多的:
org.springframework.data.mapping.model.BasicPersistentEntity.doWithAssociations(BasicPersistentEntity.java:352)
org.springframework.data.rest.webmvc.mapping.LinkCollectingAssociationHandler.doWithAssociation(LinkCollectingAssociationHandler.java:101)
添加完整的堆栈跟踪! – Jens
你有“无限递归”,阅读:http://stackoverflow.com/questions/3325387/infinite-recursion-with-jackson-json-and-hibernate-jpa-issue – Funzzy