nhet_cn_back_main/Service/Ammeter/EmeterEnergyService.cs

using Entity.Ammeter;
using Entity.Api.Resp;
using HybirdFrameworkCore.Autofac.Attribute;
using Microsoft.Data.SqlClient;
using Repository.Ammeter;
using SqlSugar;

namespace Service.Ammeter;

[Scope("SingleInstance")]
public class EmeterEnergyService : BaseServices<EmeterEnergy>
{
    public EmeterEnergyService(EmeterEnergyRepository service)
    {
        this.BaseDal = service;
    }
    
    /// <summary>
    /// 获取直流电表实时数据
    /// </summary>
    /// <returns></returns>
    public async Task<List<EmeterEnergy>> GetEnergyMeterRealTime(string endTime)
    {
        // 将传入的时间参数转换为DateTime类型
        DateTime endDateTime = DateTime.Parse(endTime);
    
        // 根据传入的时间参数计算1分钟的时间
        DateTime startDateTime = endDateTime.AddMinutes(-1);

        List<EmeterEnergy> list = await this.BaseDal.QueryListByClauseAsync(i => i.UploadTime>=startDateTime);
        
        return list
            .GroupBy(e => e.Code)
            .Select(g => g.OrderByDescending(e => e.UploadTime).First())
            .ToList();
    }
}