101 lines
3.5 KiB
C#
101 lines
3.5 KiB
C#
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using CsvHelper;
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using JY.Utility;
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using System;
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using System.Collections.Generic;
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using System.Globalization;
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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.Threading.Tasks;
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using System.Windows.Forms;
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namespace JY.Inspection
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{
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public class CSVHelper<T>
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{
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/// <summary>
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/// 读取CSV文件
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/// </summary>
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/// <param name="fileName">csv文件名</param>
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/// <returns></returns>
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public static List<T> ReadCSV(string fileName, string strSeparator = "\t")
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{
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if (!File.Exists(fileName)) return null;
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//Nuget获取CsvHelper
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using (var reader = new StreamReader(fileName))
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{
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var cfg = new CsvHelper.Configuration.CsvConfiguration(CultureInfo.InvariantCulture)
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{
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Mode = CsvMode.Escape,
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Escape = '\\',
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Delimiter = strSeparator//设置分隔符号
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};
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using (var csv = new CsvReader(reader, cfg))
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{
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var list = csv.GetRecords<T>().ToList();
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return list;
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}
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}
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}
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/// <summary>
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/// 写入数据到csv文件
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/// </summary>
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/// <param name="filePath">所需存储文件夹路径（取系统所设定值，不带日期文件夹）</param>
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/// <param name="data">数据源</param>
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/// <param name="flag">1进站，2出站，3智能电表.csv，4预警</param>
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/// <returns></returns>
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public static bool WriteCSV(string filePath, List<T> data, int flag)
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{
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if (string.IsNullOrEmpty(filePath))
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{
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filePath = Application.StartupPath + "\\localData\\" + DateTime.Now.ToString("yyyyMMdd");
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}
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else
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{
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filePath = filePath + "\\" + DateTime.Now.ToString("yyyyMMdd");
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}
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if (!Directory.Exists(filePath))
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{
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Directory.CreateDirectory(filePath);
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}
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switch (flag)
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{
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case 1:
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filePath = filePath + "\\" + DateTime.Now.ToString("yyyyMMdd") + "进站.csv";
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break;
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case 2:
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filePath = filePath + "\\" + DateTime.Now.ToString("yyyyMMdd") + "出站.csv";
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break;
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case 3:
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filePath = filePath + "\\" + DateTime.Now.ToString("yyyyMMdd") + "智能电表.csv";
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break;
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default:
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filePath = filePath + "\\" + DateTime.Now.ToString("yyyyMMdd") + "报警.csv";
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break;
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}
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try
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{
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var cfg = new CsvHelper.Configuration.CsvConfiguration(CultureInfo.InvariantCulture);
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if (File.Exists(filePath))
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{
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cfg.HasHeaderRecord = false;//是否将第一行作为标题
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}
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using (var writer = new StreamWriter(filePath, true, Encoding.GetEncoding("GB2312")))
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{
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using (var csv = new CsvWriter(writer, cfg))
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{
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csv.WriteRecords(data);
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}
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}
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return true;
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}
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catch (Exception ex)
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{
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LogHelper.Error(ex.ToString());
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return false;
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}
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}
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}
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}
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