/// <summary>
/// 根据配置文件生成缩略图
/// </summary>
/// <param name="cPath">绝对路径</param>
/// <param name="categoryType"></param>
public void MakeThumbnail(string cPath, FileTypesEnum categoryType)
{
#region 生成缩略图
string[] imgFormat = new[] { "JPEG", "JPG", "PNG", "BMP" }; //如果是图片才会进行裁切操作
//缩略图保存格式，是根据配置文件ImagesDPI.xml里面的dpi来命名
if (imgFormat.Any(o => System.IO.Path.GetExtension(cPath).ToUpper().Contains(o)))
{
string strCategoryType = categoryType.ToString();
var imageDpi = ImagesDpiConfigManager.Value.GetImagesDpiConfigByCategoryType(strCategoryType);
if (imageDpi != null)
{
ImagesDpiConfigManager.Value.MakeThumbnail(cPath, imageDpi);//生成的缩略图的路径格式是：原图路径 + “-”+ dpi + 后缀
}
}
#endregion
}
/// <summary>
/// 保存多文件上传
/// </summary>
/// <param name="currentUserId">当前用户对象</param>
/// <param name="modelId">关联的其他表Id</param>
/// <param name="fileType">文件类型枚举</param>
/// <param name="fileUpload">上传文件路径</param>
/// <param name="fileIds">文件Id（如果是修改就可能有Id），可空</param>
/// <param name="videoInfoList">视频的详情</param>
/// <returns></returns>
public List <Files> SaveMultUploadFile(long currentUserId, string modelId, FileTypesEnum fileType, List <string> fileUpload, List <int> fileIds, List <string> videoInfoList = null)
{
var oldFiles = _fileAppService.GetFilesListByCategoryIdAndType(modelId.ToString(), fileType.ToString());
bool canCommit = false;
List <Files> deleteFileList = new List <Files>();//删除的图片
for (int i = oldFiles.Count - 1; i >= 0; i--)
{
if (fileIds == null || fileIds.Contains(oldFiles[i].Id) == false)
{
_fileAppService.Delete(oldFiles[i]);
deleteFileList.Add(oldFiles[i]);//记录删除的图片
oldFiles.RemoveAt(i);
canCommit = true;
}
}
if (fileUpload.IsNotNull() && fileUpload.Any())
{
var files = oldFiles.Select(o => o.Url).ToArray();
for (int i = 0; i < fileUpload.Count; i++)
{
var o = fileUpload[i];
if (files.Contains(o.Trim()) == false)
{
var f = BindUploadFiles(o, modelId.ToString(), fileType, currentUserId, false);
if (f.IsNotNull())
{
fileUpload[i] = f.Url;
if (videoInfoList.IsNotEmpty())
{
f.Description = videoInfoList[i];
}
oldFiles.Add(f);
}
}
}
canCommit = true;
}
if (canCommit)
{
if (oldFiles.Any())
{
int i = 1;
foreach (var o in oldFiles)
{
o.SortNo = i++;
}
_fileAppService.Update(oldFiles);
}
foreach (var item in deleteFileList)//移动删除的文件
{
MoveToRecycleAsync(item.Url);
}
}
return(oldFiles);
}
/// <summary>
/// 关联文件到对应的数据，并移动到指定的路径，并保存数据到数据库返回File对象
/// </summary>
/// <param name="interimPath"></param>
/// <param name="categoryId"></param>
/// <param name="categoryType"></param>
/// <param name="currentUserId"></param>
/// <param name="isReplace">是否替换掉之前所有相同类型（categoryType）的文件</param>
/// <param name="customSaveDirPath"></param>
/// <returns></returns>
public Files BindUploadFiles(string interimPath, string categoryId, FileTypesEnum categoryType, long currentUserId, bool isReplace = true, string customSaveDirPath = "")
{
string interimFullPath = WebHelper.GetMapPath(interimPath);
System.IO.FileInfo fi = new System.IO.FileInfo(interimFullPath);
if (fi.Exists)
{
var fileHandler = DealWithUploadFileHelper.GetInstance();
try
{
string fileSourceName = string.Empty; //文件名
string fileName = string.Empty; //文件路径
//当包含]时为新传文件
//var f = fi.Name.IndexOf("]") > -1;
if (fi.Name.IndexOf(']') < 1)
{
return(null);
}
int index = fi.Name.LastIndexOf(']');
fileName = fi.Name.Substring(index + 1);
fileSourceName = fi.Name.Substring(0, index).TrimStart('[');
string oldPath = string.Empty;
bool isCreate = false;
Files model = null;
if (isReplace && categoryId.IsNotNullAndNotEmpty())
{
model = _fileAppService.GetFilesByCategoryIdAndType(categoryId, categoryType.ToString());
if (model != null)
{
if (model.Url == interimPath)
{
return(null);
}
model.SortNo = 0;
oldPath = model.OldUrl;
model.OldUrl = model.Url;
}
}
if (model == null)
{
isCreate = true;
model = new Files();
//model.Id = IdentityCreator.NewGuid;
model.CreationTime = DateTime.Now;
model.RelateId = categoryId;
model.CategoryType = categoryType.ToString();
model.OldUrl = "";
model.SortNo = 0;
model.CreatorUserId = currentUserId;
model.TenantId = 1;
}
model.FileName = fileSourceName.Substring(0, fileSourceName.Length > 100 ? 100 : fileSourceName.Length);
model.FileSize = (int)fi.Length;
string cPath = string.Empty;
if (customSaveDirPath.IsNullOrEmpty())
{
string baseDirPath = DealWithUploadFileHelper.GetInstance().GetFilesSaveDirPath(categoryType.ToString());//保存文件夹路径，路径是从根目录开始
cPath = baseDirPath;
}
else
{
cPath = customSaveDirPath;
}
model.Url = System.IO.Path.Combine(cPath, fileName);
cPath = WebHelper.GetMapPath(cPath);//保存文件夹完整路径
if (!System.IO.Directory.Exists(cPath))
{
System.IO.Directory.CreateDirectory(cPath);
}
if (isCreate)
{
model = _fileAppService.Insert(model);
}
else
{
model = _fileAppService.Update(model);
}
cPath = WebHelper.GetMapPath(model.Url);
if (!System.IO.File.Exists(cPath))
{
fi.MoveTo(cPath);
}
#region 视频的封面处理
string videoCoverImg = string.Empty;
if (System.IO.Path.GetExtension(fi.FullName).ToUpper().Contains("MP4"))
{
string dir = System.IO.Path.GetDirectoryName(interimFullPath);
string videoFileName = System.IO.Path.GetFileNameWithoutExtension(cPath) + ".jpg";
string coverSourceImgPath = string.Concat(dir, "\\", videoFileName);
if (System.IO.File.Exists(coverSourceImgPath))
{
string saveCoverPath = string.Concat(System.IO.Path.GetDirectoryName(cPath), "\\", videoFileName);
new System.IO.FileInfo(coverSourceImgPath).MoveTo(saveCoverPath);
MakeThumbnail(saveCoverPath, categoryType);//封面裁切成指定尺寸
}
}
#endregion
#region 处理上传图片，需要缩略图等多种尺寸
#region 生成缩略图
MakeThumbnail(cPath, categoryType);
#endregion
#endregion
//更新删除旧文件
if (oldPath.IsNotNullAndNotEmpty())
{
MoveToRecycleAsync(oldPath);
}
return(model);
}
catch (Exception ex)
{
throw ex;
}
finally
{
}
}
return(null);
}