public async Task <IActionResult> UploadFiles(IFormFile file, string guid)
{
var filextention = Path.GetExtension(file.FileName);
//if (filextention != ".xls" && filextention != ".xlsx")
//验证文件格式
using (var stream = file.OpenReadStream())
{
var objid = await _mongoRepository.UploadFileAsync(stream, file.FileName, new GridFSUploadOptions { Metadata = new BsonDocument
{
{ "PostId", guid }
} });
if (objid != null)
{
ApiDataHelper.GetHtmlId(objid.ToString());
return(Json(new Response <string> {
Data = objid.ToString(), Msg = "上传成功", Status = 1
}));
}
return(Json(new Response <string> {
Data = "", Msg = "上传失败", Status = 0
}));
}
}
/// <summary>
/// get content by file id
/// </summary>
/// <param name="id"></param>
/// <returns></returns>
public async Task <IActionResult> GetKnownHtml(string id)
{
var fileInfo = await _mongoRepository.GetFileInfoAsync(id);
if (FileHelper.FileCollections.ContainsKey(Path.GetExtension(fileInfo.Filename).ToLowerInvariant()))
{
switch (FileHelper.FileCollections[Path.GetExtension(fileInfo.Filename).ToLowerInvariant()])
{
case 0: //无须转且可直接预览
//return await DownloadFile(id);
return(new FileContentResult(await GetByte(id), FileHelper.GetContentType(fileInfo.Filename)));
//return Content(await GetText(id), FileHelper.GetContentType(fileInfo.Filename));
case 1: //必须转
if (fileInfo.Metadata.Contains("HtmlId") && fileInfo.Metadata["HtmlId"] != "")
{
string text = await GetText(fileInfo.Metadata["HtmlId"].ToString(), "Htmls");
return(Content(text, "text/html", Encoding.UTF8));
}
var htmlid = await ApiDataHelper.GetHtmlId(id);
var hz = 0;
while (htmlid == "" && hz < 2)
{
htmlid = await ApiDataHelper.GetHtmlId(id);
hz++;
}
if (htmlid == "") //again
{
return(Content("文件转换多次未成功，请查看文档及转换接口", "text/html", Encoding.UTF8));
}
var stext = await GetText(htmlid, "Htmls");
return(Content(stext, "text/html", Encoding.UTF8));
default: //todo
break;
}
}
return(Content("附件格式无法识别...", "text/html", Encoding.UTF8));
}
/// <summary>
///
/// </summary>
/// <param name="file"></param>
/// <param name="postguid"></param>
/// <param name="type">1:QA 2:Reply</param>
/// <returns></returns>
public async Task <IActionResult> QAUploadFiles(IFormFile file, string postguid, int type = 1)
{
if (file == null || file.Length == 0)
{
return(Json(new Response <bool> {
Data = false, Msg = "未选择文件", Status = 0
}));
}
var filextention = Path.GetExtension(file.FileName);
//if (filextention != ".xls" && filextention != ".xlsx")
// return Json(new Response<bool> { Data = false, Msg = "请选择Excel文件", Status = 0 });
//验证文件格式
GridFSUploadOptions options = new GridFSUploadOptions
{
Metadata = new BsonDocument
{
{
"PostId", postguid
},
{
"Type", type
}
}
};
using (var stream = file.OpenReadStream())
{
var id = await _mongoRepository.UploadFileAsync(stream, file.FileName, options);
ApiDataHelper.GetHtmlId(id.ToString());
return(Json(new Response <object> {
Status = 1, Msg = "", Data = new { id, Name = file.FileName }
}));
}
}