mysql获取某段时间内每一天的统计数据

select date(p.create_time) as one_day,sum(a-b) as total,
       p.cashier from pay_order p where p.create_time between date_format('2019-08-12 08:08:08','%Y%m%d') 
       and date_format('2019-08-13 08:08:08','%Y%m%d') group by one_day order by one_day desc;


如果查询数据库，使用入参实体类和出参实体类，需要@Filed注解且name与查询到的名字一致

@Table(name = "查询报表输出实体，不挂具体表")
public class ReportOutParam extends BaseEntity {

    @JsonProperty("oneDay")
    @JsonPropertyDescription("日期")
    @Field(name = "one_day")
    private String oneDay;

　　public String getOneDay() {
    　　return oneDay;
　　}

　　public void setOneDay(String oneDay) {
    　　this.oneDay = oneDay;
　　}

}