/// <summary>
/// 追加二进制数据到文件
/// </summary>
/// <param name="buffer"></param>
/// <param name="curLength"></param>
private void AppendFile(ArraySegment <byte> buffer, int curLength)
{
string filename = _file.GetFullName();
try
{
FileStream fs = new FileStream(filename, FileMode.Append, FileAccess.Write, FileShare.ReadWrite);
try
{
byte[] data = buffer.ToArray();
fs.Write(data, 0, curLength);
}
finally
{
fs.Close();
fs.Dispose();
}
FileInfo info = new FileInfo(filename);
if (info.Length >= _file.ContentLength)//保存文件成功
{
if (OnSuccess != null)
{
OnSuccess(_file);
}
}
}
catch (Exception ex)
{
throw new Exception("服务保存文件异常，" + ex.Message);
}
}
/// <summary>
/// 构造函数
/// </summary>
/// <param name="info">上传文件信息</param>
public ThumbnailHandle(UploadInfo info, string folder, int width)
{
this.Folder = folder;
this._Info = info;
this.FullName = info.GetFullName();
if (string.IsNullOrEmpty(info.GetSubFolder()))
{
throw new Exception("缩略图处理模式，上传子目录不能为空");
}
this.Width = width;
}