ExcelDataReader read excel file

  上篇文章向大家介绍了用DocumentFormat.OpenXml.dll读取excel的方法，这里再向大家介绍一种轻量级简便的方法，用的是Excel.dll,及ICSharpCode.SharpZipLib.dll, 很简单，只需要在vs2013中通过add reference->Manage NuGet Packages->找到ExcelDataReader->点击Install。

   Code:

  

public class ExcelDataReader
    {
        private string path;
        public string Path
        {
            get { return path; }
            set { path = value; }
        }
        private bool isFirstRowAsColumnNames;
        public bool IsFirstRowAsColumnNames
        {
            get { return IsFirstRowAsColumnNames; }
            set { isFirstRowAsColumnNames = value; }
        }
        public ExcelDataReader(string path, bool isFirstRowAsColumnNames)
        {
            this.path = path;
            this.isFirstRowAsColumnNames = isFirstRowAsColumnNames;
        }
        private IExcelDataReader GetExcelDataReader()
        {
            using (FileStream fileStream = File.Open(path, FileMode.Open, FileAccess.Read))
            {
                IExcelDataReader dataReader;
                if (path.EndsWith(".xls"))
                {
                    dataReader = ExcelReaderFactory.CreateBinaryReader(fileStream);
                }
                else if (path.EndsWith(".xlsx"))
                {
                    dataReader = ExcelReaderFactory.CreateOpenXmlReader(fileStream);
                }
                else
                {
                    throw new Exception("The file to be process is not an excel file.");
                }
                dataReader.IsFirstRowAsColumnNames = isFirstRowAsColumnNames;
                return dataReader;
            }
        }
        private DataSet GetExcelDataAsDataSet()
        {
            return GetExcelDataReader().AsDataSet();
        }
        private DataTable GetExcelWorkSheet(string workSheetName)
        {
            DataSet dataSet = GetExcelDataAsDataSet();
            var sheets = from DataTable sheet in dataSet.Tables
                         select sheet.TableName;
            DataTable workSheet = dataSet.Tables[workSheetName];
            if (workSheet == null)
            {
                throw new Exception(string.Format("The worksheet {0} does not exist, has an incorrect name, or does not have any data in the worksheet", workSheetName));
            }
            return workSheet;
        }
        private IEnumerable<string> GetWorkSheetNames()
        {
            DataSet dataSet = GetExcelDataAsDataSet();
            var sheets = from DataTable sheet in dataSet.Tables
                         select sheet.TableName;
            return sheets;
        }
        public List<List<DataRow>> GetData()
        {
            List<List<DataRow>> dataRows = new List<List<DataRow>>();
            IEnumerable<string> workSheets = GetWorkSheetNames();
            logger.Debug("Worksheets count :{0}.", workSheets.Count());
            foreach (string sheet in workSheets)
            {
                try
                {
                    DataTable workSheet = GetExcelWorkSheet(sheet);
                    List<DataRow> rows = (from DataRow row in workSheet.Rows
                                          where !string.IsNullOrEmpty(row[0].ToString())
                                          select row).ToList();
                    if (rows.Count > 0)
                    {
                        dataRows.Add(rows);
                       
                    }
                 }
                catch (Exception ex)
                {
                   
                }
            }
            return dataRows;
        }
    }
}