使用分页资源/嵌入对象反序列化日期.杰克逊.春天



我定义了@Bean objectMapper并设置了日期格式,如下所示:

ObjectMapper mapper = new ObjectMapper();
mapper.setDateFormat(new SimpleDateFormat("yyyy-MM-dd HH:mm"));

当方法返回正常ResponseEntity<SomeDTO>时,它有效。示例 JSON 响应:

{
    "id": 888,
    "createdDate": "2017-11-06 13:50",
}

但是当我的控制器方法返回:ResponseEntity<PagedResources<SomeDTOResponse>> 时,createdDate没有反序列化,我得到:

{
    "_embedded": {
        "someEntityResponseList": [
            {
                "id": 877,
                "createdDate": 1509877100151
            }
        ]
    },
    "_links": {
        ...
    },
    "page": {
        ...
    }
}

我的控制器:

@RequestMapping(method = RequestMethod.GET)
public ResponseEntity<PagedResources<SomeDTOResponse>> getAllActiveAuctionsForLoggedUser(
        Pageable pageable, PagedResourcesAssembler assembler) {
    Page<SomeEntity> someEntites = someEntityService.getAllSomeEntities(pageable);
Page<SomeDTOResponse> response = assembler.toResource(someEntites.map(entity -> mapToResponse(entity))
return new ResponseEntity<>(response, HttpStatus.OK);
}

当我把断点放在最后一行return...时,对象response包含:createdDate = {Timestamp@12184} "2017-11-05 10:54:14.345"mapToResponse()这是我的自定义方法,但这不是问题。那么我怎样才能得到正确的结果,正确的反序列化呢?

我的其他课程:SomeDtoResponseSomeEntity

@Data
public class SomeDtoResponse {
    private Long id;
    private Date createdDate;
}
@Entity
@Table(name = "SOME_ENTITY")
@Getter
@Setter
@NoArgsConstructor
@AllArgsConstructor
public class SomeEntity {
    @Id
    @GeneratedValue
    @Column(name = "SOME_ENTITY_ID")
    private Long id;
    @NotNull
    private Date createdDate;
}

确保您使用的 Date 类应为以下类型:

import java.util.Date;

如果它是Java.sql.Date,那么它会导致你面临的问题。我希望这将解决您的问题。

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