Asp.net mvc 返回excel文件,但不将其保存在控制器内的服务器中
我想将Excel文件(使用NPOI库)返回给用户,而无需先将文件保存在服务器中。这是我的密码:Asp.net mvc 返回excel文件,但不将其保存在控制器内的服务器中,asp.net-mvc,excel,asp.net-mvc-5,npoi,Asp.net Mvc,Excel,Asp.net Mvc 5,Npoi,我想将Excel文件(使用NPOI库)返回给用户,而无需先将文件保存在服务器中。这是我的密码: [HttpPost] [ValidateAntiForgeryToken] public ActionResult Report(SalesReportViewModel model) { if (ModelState.IsValid) { XSSFWorkb
[HttpPost]
[ValidateAntiForgeryToken]
public ActionResult Report(SalesReportViewModel model)
{
if (ModelState.IsValid)
{
XSSFWorkbook wb = context.GetReport(model);
//I have no idea what to return after I got my wb
}
return View();
}
任何帮助都将不胜感激。此堆栈溢出问题包含您的答案。
[HttpPost]
公共HttpResponseMessageExportReport([FromBody]DTOs.Report)
{
尝试
{
IReportPersistenceManager=ContainerConfiguration.Instance.Resolve();
MemoryStream ms=新的MemoryStream();
//我们必须传递到NOPI汇编文件类型以及文件名
//由于我们现在只处理excel,我们将设置它,但这可以在以后配置。
long id=report.ReportId;
字符串mimeType=“application/vnd.ms excel”;
字符串filename=“未知”;
manager.ExportDataToExcel(id,(名称,mime)=>
{
mimeType=mime;
filename=名称;
返回ms;
});
ms.Position=0;
var response=新的HttpResponseMessage();
response.Content=newbytearray内容(ms.ToArray());
response.Content.Headers.ContentType=新的MediaTypeHeaderValue(“application/vnd.ms excel”);
返回(响应);
}
捕获(例外)
{
//错误
返回新的HttpResponseMessage(System.Net.HttpStatusCode.BadRequest);
}
}
[HttpPost]
public HttpResponseMessage ExportReport([FromBody]DTOs.Report report)
{
try
{
IReportPersistenceManager manager = ContainerConfigurator.Instance.Resolve<IReportPersistenceManager>();
MemoryStream ms = new MemoryStream();
//we have to pass to the NOPI assemble file type as well as file name
//since we only deal with excel for now we will set it but this could be configured later.
long id = report.ReportId;
string mimeType = "application/vnd.ms-excel";
string filename = "unknown";
manager.ExportDataToExcel(id, (name, mime) =>
{
mimeType = mime;
filename = name;
return ms;
});
ms.Position = 0;
var response = new HttpResponseMessage();
response.Content = new ByteArrayContent(ms.ToArray());
response.Content.Headers.ContentType = new MediaTypeHeaderValue("application/vnd.ms-excel");
return (response);
}
catch (Exception)
{
//error
return new HttpResponseMessage(System.Net.HttpStatusCode.BadRequest);
}
}
[HttpPost]
[ValidateAntiForgeryToken]
public ActionResult Report(SalesReportViewModel model)
{
if (ModelState.IsValid)
{
XSSFWorkbook wb = context.GetReport(model);
byte[] fileContents = null;
using (var memoryStream = new MemoryStream())
{
wb.Write(memoryStream);
fileContents = memoryStream.ToArray();
}
return File(fileContents, System.Net.Mime.MediaTypeNames.Application.Octet, "file.xlsx");
}
return View();
}