我正在将数据从excel文件导入到sql数据库。我正在使用MVC 5和实体框架6。我正在使用epplus导入数据，并使用sqlbulkcopy将数据导入sql。 我收到3个错误： 1）excelImportDBEntities.Database.Connection 2）sqlbulkcopy是一个名称空间，但用作类型 3）ObjectReader
public async System.Threading.Tasks.Task<ActionResult>
ApplicationAsync(FormCollection formCollection)
{
var usersList = new List<bomApplicationImportTgt>();
if (Request != null)
{
HttpPostedFileBase file = Request.Files["UploadedFile"];
if ((file != null) && (file.ContentLength > 0) && !string.IsNullOrEmpty(file.FileName))
{
string fileName = file.FileName;
string fileContentType = file.ContentType;
byte[] fileBytes = new byte[file.ContentLength];
var data = file.InputStream.Read(fileBytes, 0, Convert.ToInt32(file.ContentLength));
using (var package = new ExcelPackage(file.InputStream))
{
var currentSheet = package.Workbook.Worksheets;
var workSheet = currentSheet.First();
var noOfCol = workSheet.Dimension.End.Column;
var noOfRow = workSheet.Dimension.End.Row;
for (int rowIterator = 2; rowIterator <= noOfRow; rowIterator++)
{
var user = new bomApplicationImportTgt();
user.date = Convert.ToDateTime(workSheet.Cells[rowIterator, 1].Value);
user.Description = workSheet.Cells[rowIterator, 2].Value?.ToString();
user.SequenceNumber = Convert.ToInt32(workSheet.Cells[rowIterator, 3].Value);
user.PartNumber = workSheet.Cells[rowIterator, 4].Value?.ToString();
user.PartsName = workSheet.Cells[rowIterator, 5].Value?.ToString();
user.SP = workSheet.Cells[rowIterator, 6].Value?.ToString();
user.INT = workSheet.Cells[rowIterator, 7].Value?.ToString();
user.SN = workSheet.Cells[rowIterator, 8].Value?.ToString();
user.SZ = workSheet.Cells[rowIterator, 9].Value?.ToString();
user.C = workSheet.Cells[rowIterator, 10].Value?.ToString();
user.E_F = workSheet.Cells[rowIterator, 11].Value?.ToString();
user.Block = workSheet.Cells[rowIterator, 12].Value?.ToString();
user.SEC = workSheet.Cells[rowIterator, 13].Value?.ToString();
user.Item = workSheet.Cells[rowIterator, 14].Value?.ToString();
user.SUF = workSheet.Cells[rowIterator, 15].Value?.ToString();
user.Model = workSheet.Cells[rowIterator, 16].Value?.ToString();
user.M_E_F = workSheet.Cells[rowIterator, 17].Value?.ToString();
user.OP = workSheet.Cells[rowIterator, 18].Value?.ToString();
user.Type = workSheet.Cells[rowIterator, 19].Value?.ToString();
user.Quantity = workSheet.Cells[rowIterator, 20].Value?.ToString();
user.PLGRPCD = workSheet.Cells[rowIterator, 21].Value?.ToString();
user.PL1 = workSheet.Cells[rowIterator, 22].Value?.ToString();
user.ATC1 = workSheet.Cells[rowIterator, 23].Value?.ToString();
user.PL2 = workSheet.Cells[rowIterator, 24].Value?.ToString();
user.ATC2 = workSheet.Cells[rowIterator, 25].Value?.ToString();
user.PL3 = workSheet.Cells[rowIterator, 26].Value?.ToString();
user.ATC3 = workSheet.Cells[rowIterator, 27].Value?.ToString();
user.Plant = workSheet.Cells[rowIterator, 28].Value?.ToString();
user.SHR = workSheet.Cells[rowIterator, 29].Value?.ToString();
user.DC_Number = workSheet.Cells[rowIterator, 30].Value?.ToString();
user.FileName = fileName;
usersList.Add(user);
}
}
}
}
using (Dev_Purchasing_New_ModelEntities excelImportDBEntities = new Dev_Purchasing_New_ModelEntities())
{
await new BulkWriter().InsertAsync(usersList, "bomApplicationImportTgt", excelImportDBEntities.Database.Connection, CancellationToken.None);
}
return View("Application");
}
我试图使导入更快，这就是为什么我使用sqlbulkcopy的原因，但是由于这些错误，我无法这样做。
答案 0 :(得分：0)
请检查以下代码将excel上载到SQL批量上载
控制器代码
[HttpPost]
public ActionResult ImportExcel(HttpPostedFileBase postedFile)
{
try
{
string filePath = string.Empty;
if (postedFile != null)
{
//Save File
string path = Server.MapPath("~/ExcelUpload/");
if (!Directory.Exists(path))
{
Directory.CreateDirectory(path);
}
filePath = path + Path.GetFileName(postedFile.FileName);
string extension = Path.GetExtension(postedFile.FileName);
postedFile.SaveAs(filePath);
//End
string conString = string.Empty;
switch (extension)
{
case ".xls": //Excel 97-03.
conString = ConfigurationManager.ConnectionStrings["Excel03ConString"].ConnectionString;
break;
case ".xlsx": //Excel 07 and above.
conString = ConfigurationManager.ConnectionStrings["Excel07ConString"].ConnectionString;
break;
}
//Add Excel Data To Datatable
DataTable dt = new DataTable();
conString = string.Format(conString, filePath);
//Get Actual Data for Excel
using (OleDbConnection connExcel = new OleDbConnection(conString))
{
using (OleDbCommand cmdExcel = new OleDbCommand())
{
using (OleDbDataAdapter odaExcel = new OleDbDataAdapter())
{
cmdExcel.Connection = connExcel;
//Get the name of First Sheet.
connExcel.Open();
DataTable dtExcelSchema;
dtExcelSchema = connExcel.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, null);
string sheetName = dtExcelSchema.Rows[0]["TABLE_NAME"].ToString();
connExcel.Close();
//Read Data from First Sheet.
connExcel.Open();
cmdExcel.CommandText = "SELECT * From [" + sheetName + "] Where Name IS NOT NULL AND NOT Name=''";
odaExcel.SelectCommand = cmdExcel;
odaExcel.Fill(dt);
connExcel.Close();
}
}
}
//Insert Call Dispositions table bulk upload
conString = ConfigurationManager.ConnectionStrings["exportDataToExcel"].ConnectionString;
using (SqlConnection con = new SqlConnection(conString))
{
using (SqlBulkCopy sqlBulkCopy = new SqlBulkCopy(con))
{
TempData["TotalInsertCount"] = dt.Rows.Count;
foreach (DataColumn col in dt.Columns)
col.ColumnName = col.ColumnName.Trim();
//Set the database table name.
sqlBulkCopy.DestinationTableName = "dbo.CallDispositions";
//[OPTIONAL]: Map the Excel columns with that of the database table
sqlBulkCopy.ColumnMappings.Add("Name", "Name");
sqlBulkCopy.ColumnMappings.Add("TAT", "TAT");
sqlBulkCopy.ColumnMappings.Add("Discription", "Discription");
con.Open();
sqlBulkCopy.WriteToServer(dt); //
con.Close();
}
}
//End
}
}
catch (Exception ex)
{
}
return RedirectToAction("List"); }
用于获取Excel数据并添加数据表的连接字符串
<add name="Excel03ConString" connectionString="Provider=Microsoft.Jet.OLEDB.4.0;Data Source={0};Extended Properties='Excel 8.0;HDR=YES'" />
<add name="Excel07ConString" connectionString="Provider=Microsoft.ACE.OLEDB.12.0;Data Source={0};Extended Properties='Excel 8.0;HDR=YES'" />