我使用以下代码将一个EPPlus软件包作为asp.net MVC中的Excel文件发送到客户端。但是,我遇到了抛出OutOfMemoryException异常的大文件问题。从MVC EPPlus Excel下载导致内存不足异常
public class ExcelPackageResult : ActionResult
{
public ExcelPackage ExcelPackage { get; set; }
private string _fileName;
public ExcelPackageResult(ExcelPackage excelPackage, string fileName)
{
ExcelPackage = excelPackage;
_fileName = fileName;
}
public override void ExecuteResult(ControllerContext context)
{
context.HttpContext.Response.ClearContent();
ExcelPackage.SaveAs(context.HttpContext.Response.OutputStream);
context.HttpContext.Response.AddHeader("content-disposition", string.Format(@"attachment;filename=""{0}.xlsx""", _fileName));
context.HttpContext.Response.ContentType = "application/excel";
context.HttpContext.Response.Flush();
context.HttpContext.Response.End();
ExcelPackage.Dispose();
}
}
的问题是在该行:ExcelPackage.SaveAs(context.HttpContext.Response.OutputStream);
我也试过: context.HttpContext.Response.BinaryWrite(ExcelPackage.GetAsByteArray());
有没有办法直接从ExcelPackage流的响应,而不是分配的内存块它发送之前?
excel文件中有多少数据? (行和列) – Ernie
四舍五入,190,000行X 40列 – RyanHerbert