/// <summary>
/// 处理上传文件的格式
/// </summary>
/// <param name="fileModel"></param>
private void FormatFile(TraficFiles fileModel)
{
if (FileHelper.IsOfficeWordDocument(fileModel.FilePath) || FileHelper.IsPdfDocument(fileModel.FilePath))
{
fileModel = FileProcesser.Format(fileModel);
var fileBll = new TraficFilesBll();
fileBll.Update(fileModel);
SearchHelper.AddSearchTask(1, fileModel.Id);
}
}
/// <summary>
/// 将上传的文件进行格式转换处理，若文件格式符合处理条件，则在文件处理完成之后会将处理后得到的新文件地址赋值给 fileModel 的 FilePath 字段并返回
/// </summary>
/// <param name="fileModel"><see cref="TraficFiles"/>类的实体对象</param>
public static TraficFiles Format(TraficFiles fileModel)
{
try
{
var fileName = PathExtension.MapPath(fileModel.FilePath);
var path = Path.GetDirectoryName(fileName);
var htmlFilesPath = Path.Combine(path, Guid.NewGuid().ToString());
var ext = Path.GetExtension(fileName).ToLower();
switch (ext)
{
case ".doc":
case ".docx":
FileHelper.Word2Html(fileName, htmlFilesPath);
break;
//case ".pdf":
// FileHelper.Pdf2Html(fileName, htmlFilesPath);
// break;
default:
//throw new NotImplementedException();
return(fileModel);
}
// 将 __html 中的文件打包压缩成 zip 格式的文件
var fileNameWithoutExtension = Path.GetFileNameWithoutExtension(fileName);
var zipFileName = Path.Combine(path, fileNameWithoutExtension + ".zip");
FileHelper.Zip(zipFileName, htmlFilesPath);
// 删除 __html 目录
Directory.Delete(htmlFilesPath, true);
// 将 zip 文件路径处理成相对路径
fileName = fileName.Replace("\\", "/");
var webDir = fileName.Replace(fileModel.FilePath, "");
fileModel.FilePath = zipFileName.Replace("\\", "/").Replace(webDir, "");
fileModel.FilePath = fileModel.FilePath.StartsWith("/") ? fileModel.FilePath : $"/{fileModel.FilePath}";
var n = fileModel.FileName;
fileModel.FileExtension = ".zip";
fileModel.FileName = Path.GetFileNameWithoutExtension(n) + fileModel.FileExtension;
return(fileModel);
}
catch (Exception ex)
{
ExceptionLogBll.ExceptionPersistence(nameof(FileProcesser), nameof(FileProcesser), ex);
return(fileModel);
}
}
public JsonResult AddFiles()
{
var typeId = Request["typeId"].ToInt32();
var departId = Request["depart"].ToInt32();
if (typeId == 0 || departId == 0)
{
return(Json(new { msg = ErrorModel.InputError }));
}
// 将文件保存到本地
var uploadRes = UploadHelper.FileUpload();
var filePathInfo = uploadRes as FilePathInfo;
if (filePathInfo == null)
{
return(Json(new { msg = uploadRes }));
}
var fileBll = new TraficFilesBll();
// 验证文件是否重名
var condition = $"IsDelete=0 AND TypeId={typeId} AND FileName='{filePathInfo.OriginalFileName}'";
if (fileBll.Exists(condition))
{
return(Json(ErrorModel.FileExists));
}
var loginUser = LoginStatus.GetLoginId();
var fileModel = new TraficFiles
{
FileExtension = filePathInfo.FileExtension,
FileName = filePathInfo.OriginalFileName,
FilePath = filePathInfo.FileRelativePath,
OriginFilePath = filePathInfo.FileRelativePath,
FileSize = filePathInfo.FileSize,
TypeId = typeId,
CreatorId = loginUser,
DepartmentId = departId
};
var logBll = new OperateLogBll();
var dirBll = new TraficFileTypeBll();
var dir = dirBll.QuerySingle(typeId);
var log = $"在目录[{dir.TypeName}]下添加了文件《{filePathInfo.OriginalFileName}》";
// 执行插入操作、数据库更新日志插入操作以及后台操作日志插入操作
var success = fileBll.ExecuteTransation(
() => fileBll.Insert(fileModel).Id > 0,
() => DataUpdateLog.SingleUpdate(nameof(TraficFiles), fileModel.Id, DataUpdateType.Insert),
() => logBll.Add(nameof(TraficFiles), fileModel.Id, DataUpdateType.Insert, loginUser, log)
);
if (success)
{
// 开启新线程执行将 office 文件转换为 html 的任务
// 以避免阻塞网络请求线程，造成用户长时间的等待
Task.Factory.StartNew(() => FormatFile(fileModel));
return(Json(new
{
msg = ErrorModel.OperateSuccess,
data = uploadRes,
fileId = fileModel.Id,
fileModel
}));
}
return(Json(new { msg = ErrorModel.OperateFailed }));
}