Spring jpa存储库查找所有

Question

我正在尝试执行此方法：

@GetMapping("/all")
public Iterable<AspsortObject> getallasp()
{
    return ar.findAll();
}

但我收到此错误：

at com.fasterxml.jackson.databind.ser.std.BeanSerializerBase.serializeFields(BeanSerializerBase.java:722) ~[jackson-databind-2.10.3.jar:2.10.3]
    at com.fasterxml.jackson.databind.ser.BeanSerializer.serialize(BeanSerializer.java:166) ~[jackson-databind-2.10.3.jar:2.10.3]
    at com.fasterxml.jackson.databind.ser.BeanPropertyWriter.serializeAsField(BeanPropertyWriter.java:727) ~[jackson-databind-2.10.3.jar:2.10.3]
    at com.fasterxml.jackson.databind.ser.std.BeanSerializerBase.serializeFields(BeanSerializerBase.java:722) ~[jackson-databind-2.10.3.jar:2.10.3]
    at com.fasterxml.jackson.databind.ser.BeanSerializer.serialize(BeanSerializer.java:166) ~[jackson-databind-2.10.3.jar:2.10.3]
    at com.fasterxml.jackson.databind.ser.std.CollectionSerializer.serializeContents(CollectionSerializer.java:145) ~[jackson-databind-2.10.3.jar:2.10.3]
    at com.fasterxml.jackson.databind.ser.std.CollectionSerializer.serialize(CollectionSerializer.java:107) ~[jackson-databind-2.10.3.jar:2.10.3]

我的存储库：

@Repository
public interface AspsortRepositori extends CrudRepository<AspsortObject,Long>{

    @Override
    List<AspsortObject> findAll();

}

我应该怎么做才能解决此错误，并在前端parti中显示所有数据？

Answer 1

您好，当我在实体中添加@JsonIgnore时

@Entity
@Table(name="aspsortobject")
public class AspsortObject {
    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    private long id;

    @JsonIgnore
    @ManyToOne(cascade = CascadeType.PERSIST)
    @JoinColumn(name = "rfpid")
    private Rfpobject rfpid;
    private String requestid;
    private String aspart;
    private String aspname;
    private String asporganisation;
    private String aspsort;
    public AspsortObject() {
        super();
    }