项目中使用 Spring Data Elasticsearch 出现 failed to map source[entity data]to xxx class，求解

但是 Controller 层调用对应的实体的查询所有方法时报 failed to map source[entity data]to xxx class 异常，去百度上查找得到的解决方案都是在实体类中提供空参构造器，但是我已经提供了

下面是代码，Controller 层，发生错误的方法是 findAll()

 @GetMapping("test") public void test(){ List<Village> list = villageService.list(); villageDao.saveAll(list); Iterable<Village> all = villageDao.findAll(); for (Village village : all) { System.out.println(village); } } 

Village 实体类

@Getter @Setter @TableName("v_village") @ApiModel(value = "Village 对象", description = "") @Document(indexName = "village") @Data @ToString @AllArgsConstructor @NoArgsConstructor public class Village implements Serializable { private static final long serialVersiOnUID= 1L; @Id @TableId(value = "id", type = IdType.ASSIGN_ID) @Field(index = false,type = FieldType.Keyword) private String id; @ApiModelProperty("同乡会头像") @Field(index = false,type = FieldType.Text) private String avatarUrl; @ApiModelProperty("学校 Id ，对应 a_university") @Field(index = false,type = FieldType.Keyword) private Integer unId; @ApiModelProperty("名称") @Field(type = FieldType.Text) private String name; @ApiModelProperty("负责人微信") @Field(index = false,type = FieldType.Text) private String wechat; @ApiModelProperty("负责人姓名") @Field(type = FieldType.Text) private String master; @ApiModelProperty("公众号文章链接") @Field(index = false,type = FieldType.Text) private String articleUrl; @ApiModelProperty("二维码") @Field(index = false,type = FieldType.Text) private String qrCode; @ApiModelProperty("点赞数") @Field(index = false,type = FieldType.Integer) private Integer likeNum; @ApiModelProperty("排序，小的在前") @Field(index = false,type = FieldType.Integer) private Integer sort; @ApiModelProperty("省 id") @Field(type = FieldType.Keyword) private String provinceId; @ApiModelProperty("城市 Id") @Field(type = FieldType.Keyword) private String cityId; @ApiModelProperty("区 Id") @Field(type = FieldType.Keyword) private String districtId; @Field(index = false,type = FieldType.Integer) private Integer isDeleted; @TableField(fill = FieldFill.INSERT) @Field(index = false,type = FieldType.Date) private LocalDateTime createTime; @TableField(fill = FieldFill.INSERT_UPDATE) @Field(index = false,type = FieldType.Date) private LocalDateTime updateTime; } 

按照 ES 规范构造的 Repository 接口

public interface VillageDao extends ElasticsearchCrudRepository<Village,String> { }