85 lines
3.1 KiB
C#
85 lines
3.1 KiB
C#
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Threading.Tasks;
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using Microsoft.AspNetCore.Mvc;
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using OfficeOpenXml; // 引入 EPPlus 套件
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using WebApi_data_value.Models; // 更新為正確的命名空間
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using Microsoft.EntityFrameworkCore;
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using Parking_space_WebAPI.Services;
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namespace WebApi_data_value.Controllers
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{
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[Route("api/[controller]")]
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[ApiController]
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public class ExcelController : ControllerBase
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{
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private readonly SqlContext _context;
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public ExcelController(SqlContext context)
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{
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_context = context;
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}
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// GET: api/Excel/Download
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[HttpGet("Download")]
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public async Task<IActionResult> DownloadExcel()
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{
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// 從資料庫中讀取 yuntech_parking 表的數據
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var parkingSpaces = await _context.yuntech_parking.ToListAsync();
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if (parkingSpaces == null || !parkingSpaces.Any())
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{
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return NotFound("No parking spaces data found.");
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}
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// 從資料庫中讀取月租車與臨停車的數據
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var monthlyRent = await _context.yuntech_monthly_rent_number
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.FirstOrDefaultAsync(x => x.category == "月租");
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var temporaryParking = await _context.yuntech_monthly_rent_number
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.FirstOrDefaultAsync(x => x.category == "臨停");
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if (monthlyRent == null || temporaryParking == null)
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{
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return NotFound("No data found for monthly rent or temporary parking.");
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}
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var file = GenerateExcel(parkingSpaces, monthlyRent, temporaryParking);
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var fileName = $"ParkingSpaces_{DateTime.Now:yyyyMMddHHmmss}.xlsx";
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return File(file, "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet", fileName);
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}
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private byte[] GenerateExcel(IEnumerable<Yuntech_parking> parkingData, Yuntech_monthly_rent_number monthlyRent, Yuntech_monthly_rent_number temporaryParking)
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{
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using var package = new ExcelPackage();
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var worksheet = package.Workbook.Worksheets.Add("Yuntech Parking");
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// 設定標題
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worksheet.Cells[1, 1].Value = "總車位";
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worksheet.Cells[1, 2].Value = "剩餘車位";
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worksheet.Cells[1, 3].Value = "月租車數量";
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worksheet.Cells[1, 4].Value = "臨停數量";
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// 添加下載時間
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worksheet.Cells[1, 6].Value = "下載時間";
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worksheet.Cells[2, 6].Value = DateTime.Now.ToString("yyyy/MM/dd HH:mm:ss");
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var row = 2;
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// 添加每一行的數據
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foreach (var item in parkingData)
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{
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worksheet.Cells[2, 1].Value = item.all_num;
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worksheet.Cells[2, 2].Value = item.now_num;
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row++;
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}
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// 添加月租車與臨停車的數據
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worksheet.Cells[2, 3].Value = monthlyRent.number;
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worksheet.Cells[2, 4].Value = temporaryParking.number;
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return package.GetAsByteArray();
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}
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}
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}
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