69 lines
2.2 KiB
C#
69 lines
2.2 KiB
C#
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using System;
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using System.Collections.Generic;
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using System.Configuration;
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using System.IO;
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using System.Linq;
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using System.Text;
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using System.Text.RegularExpressions;
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using System.Threading.Tasks;
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using MyCode.Project.Infrastructure.Extensions;
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namespace MyCode.Project.Infrastructure.Exports
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{
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/// <summary>
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/// 导出Excel任务
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/// </summary>
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public class ExportExcelProcess:IExportExcelProcess
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{
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/// <summary>
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/// 导出Excel配置
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/// </summary>
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public ExportExcelConfig Config { get; }
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/// <summary>
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/// 获取导出Excel数据的处理事件
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/// </summary>
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private readonly GetExportDataEvent _exportExcelFunc;
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/// <summary>
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/// 初始化一个<see cref="ExportExcelProcess"/>类型的实例
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/// </summary>
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/// <param name="config"></param>
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/// <param name="func"></param>
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public ExportExcelProcess(ExportExcelConfig config, GetExportDataEvent func)
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{
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this.Config = config;
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this._exportExcelFunc = func;
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}
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/// <summary>
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/// 执行导出Excel数据的方法
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/// </summary>
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/// <param name="fileName">文件名</param>
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/// <returns>返回文件路径</returns>
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public string RunExportExcelProcess(string fileName)
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{
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if (_exportExcelFunc != null)
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{
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//导出Excel每次最多的导出数量
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//var exportExcelDataCount = ConfigurationManager.AppSettings["ExportExcelDataCount"];
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//默认1000条数据
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int queryCount = 10000;
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//if (!string.IsNullOrEmpty(exportExcelDataCount) && Regex.IsMatch(exportExcelDataCount, "^[0-9]+$"))
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//{
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// queryCount = int.Parse(exportExcelDataCount);
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//}
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//获取导出数据所需的查询条件
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var dataList = this._exportExcelFunc(this.Config.Condition, queryCount);
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var excelFile = this.Config.CreateExcelFile(dataList,fileName);
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return excelFile;
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}
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throw new ApplicationException("没有找到导出Excel数据的方法!");
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}
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}
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}
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