java 年月日的表达式

@Data
public class RequestMoreEntity implements Serializable {
	//输入格式：2022-04-21
    @Pattern(regexp = "^(\s*|(\d{4}-\d{2}-\d{2}))$", message = "开始日期格式错误")
    @ApiModelProperty(value = "时间筛选")
    private String dataFilter;
}