我有一张Excel工作表,其中包含一组包含数据的列和行。我想将完整的Excel工作表数据作为JSON读取,以便稍后我可以将JSON写入文件。我怎么能这样做?
示例数据:
Names RegNo Description
ABCD 12345 DemoInfo
XYZ 67890 DemoInfo2
答案 0 :(得分:8)
通过ADO.NET OleDb提供程序连接到Excel工作表。然后,使用C#的JSON库生成JSON字符串,并保存文件。 (或者使用JavascriptSerialzer,正如@boades建议的那样)。
此示例使用JSON.NET库。
using System;
using System.Linq;
using System.Data.OleDb;
using System.Data.Common;
using Newtonsoft.Json;
using System.IO;
namespace ConsoleApplication1 {
class Program {
static void Main(string[] args) {
var pathToExcel = @"C:\path\to\excel\file.xlsx";
var sheetName = "NameOfSheet";
var destinationPath = @"C:\path\to\save\json\file.json";
//Use this connection string if you have Office 2007+ drivers installed and
//your data is saved in a .xlsx file
var connectionString = $@"
Provider=Microsoft.ACE.OLEDB.12.0;
Data Source={pathToExcel};
Extended Properties=""Excel 12.0 Xml;HDR=YES""
";
//Creating and opening a data connection to the Excel sheet
using (var conn=new OleDbConnection(connectionString)) {
conn.Open();
var cmd=conn.CreateCommand();
cmd.CommandText = $"SELECT * FROM [{sheetName}$]";
using (var rdr=cmd.ExecuteReader()) {
//LINQ query - when executed will create anonymous objects for each row
var query = rdr.Cast<DbDataRecord>().Select(row => new {
name = row[0],
regno = row[1],
description = row[2]
});
//Generates JSON from the LINQ query
var json = JsonConvert.SerializeObject(query);
//Write the file to the destination path
File.WriteAllText(destinationPath, json);
}
}
}
}
}
链接:
答案 1 :(得分:2)
您可以尝试http://exceldatareader.codeplex.com/库。 您必须从excel读取数据到某个对象,然后使用JavaScriptSerializer
将其转换为jsonpublic class MyRow
{
public string Cell1;
public string Cell2;
public string Cell3;
}
class Program
{
static void Main()
{
var list = new List<MyRow>();
FileStream stream = File.Open(filePath, FileMode.Open, FileAccess.Read);
//1. Reading from a binary Excel file ('97-2003 format; *.xls)
IExcelDataReader excelReader = ExcelReaderFactory.CreateBinaryReader(stream);
//...
//2. Reading from a OpenXml Excel file (2007 format; *.xlsx)
IExcelDataReader excelReader = ExcelReaderFactory.CreateOpenXmlReader(stream);
//5. Data Reader methods
while (excelReader.Read())
{
var obj = new MyRow
{
Cell1 = excelReader.GetString(0),
Cell2 = excelReader.GetString(1),
Cell3 = excelReader.GetString(2),
}
list.Add(obj);
}
//6. Free resources (IExcelDataReader is IDisposable)
excelReader.Close();
var json = new JavaScriptSerializer().Serialize(list);
Console.WriteLine(json);
}
}
答案 2 :(得分:1)
将其另存为CSV。然后使用File.ReadLines枚举每一行,然后使用String.Split读取每一列。将数据格式化为JSON字符串并将其保存到文件中。