今天在使用Spring Data JPA的時候，碰到了這樣一個問題：

com.fasterxml.jackson.databind.exc.InvalidDefinitionException: No serializer found for class org.hibernate.proxy.pojo.bytebuddy.ByteBuddyInterceptor and no properties discovered to create BeanSerializer (to avoid exception, disable SerializationFeature.FAIL_ON_EMPTY_BEANS) (through reference chain: com.thr.entity.User$HibernateProxy$xopzX9ty["hibernateLazyInitializer"])

這是因為在使用Json時，

fasterxml.jackson將物件轉換為json報錯

解決辦法：

在實體類上面加上註解 @JsonIgnoreProperties(value = { "hibernateLazyInitializer", "handler" })

/**
 * @author Tang Haorong
 * @name
 */

@JsonIgnoreProperties(value = {"hibernateLazyInitializer", "handler"})
@Entity
@Table(name = "t_user")
public class User implements Serializable {

    @Id
    @Column(name = "id",nullable = false)
    @GeneratedValue
    private Integer id;

    @Column(name = "name",length = 64)
    private String name;

    @Column(name = "password",length = 64)
    private String password;