private static bool Upload(string dir, string localname, string fileName, byte[] file, ref FileUploadInfoResult uploadResult)
{
if (string.IsNullOrEmpty(dir))
{
return(false);
}
FileInfo formalFileInfo = new FileInfo(Path.Combine(dir, fileName));
//判断正式目录是否存在,不存在则创建
try
{
if (!Directory.Exists(formalFileInfo.DirectoryName))
{
Directory.CreateDirectory(formalFileInfo.DirectoryName);
}
}
catch (Exception ex)
{
uploadResult.err.Add("执行Exists或CreateDirectory失败，" + ex.Message.ToString());
return(false);
}
//判断是否在正式目录存在同名文件，存在则删除
if (formalFileInfo.Exists)
{
try
{
formalFileInfo.Delete();
}
catch (Exception ex)
{
uploadResult.err.Add("执行Delete失败，" + ex.Message.ToString());
return(false);
}
}
try
{
System.IO.FileStream fs = new System.IO.FileStream(formalFileInfo.FullName, System.IO.FileMode.Create, System.IO.FileAccess.Write);
fs.Write(file, 0, file.Length);
fs.Flush();
fs.Close();
}
catch (Exception ex)
{
uploadResult.err.Add(ex.Message.ToString());//错误信息
return(false);
}
uploadResult.localname.Add(localname); //原始文件名
uploadResult.newname.Add(fileName); //新文件名称
uploadResult.fullpath.Add(formalFileInfo.FullName); //全路径
return(true);
}
/// <summary>
/// 上传文件，同时上传多张文件
/// </summary>
/// <param name="param"></param>
/// <param name="append"></param>
/// <param name="fullpath"></param>
/// <param name="err"></param>
/// <returns></returns>
public static bool UploadFileByHTML(FileUploadParam param, ref FileUploadInfoResult uploadResult)
{
//uploadResult = new FileUploadResult()
//{
// localname = new List<string>(),
// newname = new List<string>(),
// fullpath = new List<string>(),
// err = new List<string>(),
//};
HttpFileCollection filecollection = param.request.Files;
for (int index = 0; index < filecollection.Count; index++)
{
HttpPostedFile postedfile = filecollection.Get(index);
// 读取原始文件名
string localname = postedfile.FileName;
byte[] file = new Byte[postedfile.ContentLength]; // 统一转换为byte数组处理 // 初始化byte长度.
// 转换为byte类型
System.IO.Stream stream = postedfile.InputStream;
stream.Read(file, 0, postedfile.ContentLength);
stream.Close();
if (file.Length == 0)
{
uploadResult.err.Add("上传的文件无效");
return(false);
}
if (file.Length > param.maxattachsize)
{
uploadResult.err.Add("文件大小超过" + SizeFormatNum2String(param.maxattachsize));
return(false);
}
uploadResult.filetype = param.fileType;
#region 文件
if (param.fileType == FileType.Image)
{
if (!FileUploadHelper.ValidateImage(file))
{
uploadResult.err.Add("请上传有效的文件");
return(false);
}
}
// 取上载文件后缀名
string extension = FileHelper.GetFileExtName(localname);
if (param.upext.Split(',').Where(p => p.Contains(extension)).Count() <= 0)
{
uploadResult.err.Add("上传文件扩展名必需为：" + param.upext);
return(false);
}
else
{
string fileName = FileUploadHelper.GetRndOnlyFileName(extension);
bool resultFlag = Upload(param.fileDirectory, localname, fileName, file, ref uploadResult);
if (!resultFlag)
{
//上传失败直接返回
return(false);
}
}
#endregion
file = null;
}
filecollection = null;
return(true);
}
