@RequestBody时第二个字母大写,映射不到的解决

 /**
     * 添加
     *
     * @param requestNavigationTagVO
     * @return
     */
    @PostMapping("/add")
    public JsonData add(@RequestBody RequestNavigationTagVO requestNavigationTagVO) {
        navigationTagService.add(requestNavigationTagVO);
        return JsonData.ok();
    }

@Builder
@AllArgsConstructor
@NoArgsConstructor
@Data
public class RequestNavigationTagVO {
    /**
     * id
     */
    private Long id;

    /**
     * 所属导航id
     */
    @NotNull(groups = {AddNavigationTag.class, ModifyNavigationTag.class}, message = "所属导航id不能为空")
    private Long pId;

    /**
     * 标签名称
     */
    @NotBlank(groups = {AddNavigationTag.class, ModifyNavigationTag.class}, message = "标签名称不能为空")
    private String name;

    /**
     * 排序
     */
    @NotNull(groups = {AddNavigationTag.class, ModifyNavigationTag.class}, message = "排序不能为空")
    private Integer sort;
}

{
 "pId": 654577072911111,
 "name":"中餐",
 "sort":1
}

 public Long getPId() {
        ...
    }

 public void setPId(Long PId) {
     ...
 }

 @JsonProperty("pId")
 private Long pId;

@Data
public class RequestModel {
    @JsonProperty("BODY")
    @JSONField(name = "BODY")
    private RequestBodyModel Body;
}