今日指数项目股票成交量对比功能实现流程

股票成交量对比功能

1. 股票成交量对比功能分析

1.1 模型示列

功能描述：统计A股大盘T日和T-1日成交量对比功能（成交量为沪深两市成交量之和）

1.2 接口示列

返回数据格式 服务路径：/api/quot/stock/tradeAmt 服务方法：GET 前端请求频率：每分钟 请求参数：无

{
    "code": 1,
    "data": {
        "amtList": [{"count": 3926392,"time": "202112310930"},{"count": 3926392,"time": "202112310931"}，...],//T日每分钟成交量信息
        "yesAmtList":[{"count": 3926392,"time": "202112310930"},...]//T-1日每分钟成交量信息 
	}
}

1.3调用表结构

stock_market_index_info

2. 股票sql代码分析

• 确认所要查询的表(stock_market_index_info)
• 确认查询字段 --> 时间(格式化为字符串) , 交易量(需要对沪深两股的交易额进行合并计算)
• 确认查询条件 --> 从开盘到当前时间段沪深两股的交易信息

select
	date_format(smi.cur_time,'%Y%m%d%H%i') as time,
	sum(smi.trade_amount) as count
from
	stock_market_index_info as smi
where
	smi.cur_time between '2021-12-28 09:30:00' and '2021-12-28 14:40:00'
and
	smi.market_code in ('sh000001','sz399001')
group by time
order by time asc;

3. 代码实现

表现层

/**
     * 股票成交量统计
     */
    @ApiOperation(value = "股票成交量统计", notes = "股票成交量统计", httpMethod = "GET")
    @GetMapping("/stock/tradeAmt")
    public R<Map> getTradeAmt(){
        return service.getTradeAmt();
    }
   

服务层

@Override
    public R<Map> getTradeAmt() {
        // 1. 获取当前时间
        DateTime curTime = DateTimeUtil.getLastDate4Stock(DateTime.now());
        curTime = DateTime.parse("2021-12-28 14:40:00", DateTimeFormat.forPattern("yyyy-MM-dd HH:mm:ss"));
        Date nowDate = curTime.toDate();
        // 获取开盘时间
        Date openDate = DateTimeUtil.getOpenDate(curTime).toDate();
        // 获取前一天的当前时间
        DateTime previousTradingDay = DateTimeUtil.getPreviousTradingDay(curTime);
        Date preDate = previousTradingDay.toDate();
        // 获取前一天的开盘时间
        Date tOpenDate = DateTimeUtil.getOpenDate(previousTradingDay).toDate();


        // 2. 获取当前交易日的数据
        List<Map> stockData =  stockMarketIndexInfoMapper.getTradeAmt(nowDate,openDate,stockInfoConfig.getInner());

        // 3. 获取前一天交易日的数据
        List<Map> stockPreData =  stockMarketIndexInfoMapper.getTradeAmt(preDate,tOpenDate,stockInfoConfig.getInner());

        // 4. 封装数据
        HashMap<String, List<Map>> data = new HashMap<>();
        data.put("amtList",stockData);
        data.put("yesAmtList",stockPreData);

        return R.ok(data);


    }

Dao层

<select id="getTradeAmt" resultType="java.util.Map">
        select
            date_format(smi.cur_time,'%Y%m%d%H%i') as time,
	sum(smi.trade_amount) as count
        from
            stock_market_index_info as smi
        where
            smi.cur_time between #{openDate} and #{nowDate}
          and
            smi.market_code in 
        <foreach collection="inner" item="mark" open="(" separator="," close=")">
            #{mark}
        </foreach>
        group by time
        order by time asc
    </select>