public IActionResult Import(IFormFile excelfile)
{
string sWebRootFolder = _webHostEnvironment.WebRootPath;
string sFileName = $"{Guid.NewGuid()}.xlsx";
FileInfo file = new FileInfo(Path.Combine(sWebRootFolder, sFileName));
try
{
using (FileStream fileStream = new FileStream(file.ToString(), FileMode.Create))
{
excelfile.CopyTo(fileStream);
fileStream.Flush();
}
Stream fs = excelfile.OpenReadStream();
//此处泛型为需要隐射的实体类
Import2Excel <FundModel> it = new Import2Excel <FundModel>();
//这里自定义将excel的表头或列名字映射到对应实体
it.ForMember("日期", e => e.CurrentDateTime);
it.ForMember("上证指数", e => e.ShanghaiCompositeIndex);
it.ForMember("平安银行(000001)", e => e.PinganBank);
it.ForMember("贵州茅台(600519)", e => e.MoutaiChina);
it.ForMember("中信建投(601066)", e => e.CiciCitic);
it.ForMember("华兴源创(688001)", e => e.SuzhouHYCTechnology);
it.ForMember("同达创业(600647)", e => e.ShanghaiTongdaVentureCapitalCo);
//通过此方法直接将流文件加载到内存
IList <FundModel> list = it.LoadFromExcel(fs);
_context.AddRangeAsync(list);
var count = _context.SaveChangesAsync();
return(Content("上传成功，请返回到上一页进行相对收益计算！"));
}
catch (Exception ex)
{
return(Content(ex.Message));
}
}