/// <summary>
/// 插入数据
/// </summary>
/// <param name="obj">对象</param>
/// <returns>返回：该条数据的主键Id</returns>
public int Insert(DownloadLog obj)
{
if (obj == null) throw new ArgumentNullException("obj");
String stmtId = "DownloadLog.Insert";
return SqlMapper.Instance().QueryForObject<int>(stmtId, obj);
}
/// <summary>
/// 更新数据
/// </summary>
/// <param name="obj"></param>
/// <returns>返回：ture 成功，false 失败</returns>
public bool Update(DownloadLog obj)
{
if (obj == null) throw new ArgumentNullException("obj");
String stmtId = "DownloadLog.Update";
int result = SqlMapper.Instance().QueryForObject<int>(stmtId, obj);
return result > 0 ? true : false;
}
/// <summary>
/// 更新数据
/// </summary>
/// <param name="obj"></param>
/// <returns>返回：ture 成功，false 失败</returns>
public bool Update(DownloadLog obj)
{
return dal.Update(obj);
}
/// <summary>
/// 插入数据
/// </summary>
/// <param name="obj">对象</param>
/// <returns>返回：该条数据的主键Id</returns>
public int Insert(DownloadLog obj)
{
return dal.Insert(obj);
}
public void DownloadDoc(int docId,string valkey)
{
CancelLayout();
CancelView();
try {
DocService ds = Context.GetService<DocService>();
U_UserInfo logonUser = base.GetUser();
DDocInfo doc = ds.DDocInfoBll.Get(docId);
FileStream myFile = null;
BinaryReader br = null;
try
{
#region 下载文档前需要经过一系列的权限判断
#endregion
myFile = new FileStream(doc.PhysicalPath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
br = new BinaryReader(myFile);
Context.Response.AppendHeader("Accept-Ranges", "bytes");
HttpContext.Current.Response.Buffer = false;
//Response.Buffer = false;
Int64 fileLength = myFile.Length;
Int64 startBytes = 0;
Double pack = 10240; //10K bytes
int dlSpeed = 512000; //下载速度
Int32 sleep = (Int32)Math.Floor(1000 * pack / dlSpeed) + 1;
//if (Request.Headers["Range"] != null)
//{
// Response.StatusCode = 206;
// String[] range = Request.Headers["Range"].Split(new Char[] { '=', '-' });
// startBytes = ConvertUtility.ToInt64(range[1]);
//}
HttpContext.Current.Response.AddHeader("Content-Length", (fileLength - startBytes).ToString());
HttpContext.Current.Response.AddHeader("Connection", "Keep-Alive");
HttpContext.Current.Response.ContentType = "application/octet-stream";
HttpContext.Current.Response.AddHeader(
"Content-Disposition",
"attachment;filename=" + HttpUtility.UrlEncode(doc.FileName, System.Text.Encoding.UTF8)
+ "." + doc.DocType
);
br.BaseStream.Seek(startBytes, SeekOrigin.Begin);
Int32 maxCount = (Int32)Math.Floor((fileLength - startBytes) / pack) + 1;
for (Int32 i = 0; i < maxCount; i++)
{
if (Response.IsClientConnected)
{
Response.BinaryWrite(br.ReadBytes(Convert.ToInt32(pack)));
System.Threading.Thread.Sleep(sleep);
}
else
break;
}
//下载成功，写入一条下载日志
if (doc.Price == 0 && doc.UserId != logonUser.UserId)
{
//先判断是否已经写入过下载日志了
bool isExistLog = ds.DownloadLogBll.IsExistDownLog(logonUser.UserId, doc.DocId);
if (!isExistLog)
{
DownloadLog downLog = new DownloadLog()
{
CreateTime = DateTime.Now,
DocId = doc.DocId,
UserId = logonUser.UserId
};
ds.DownloadLogBll.Insert(downLog);
}
}
}
catch (Exception ex)
{
Utils.Log4Net.Error("file DownloadFile " + ex.ToString());
//DoAlert("异常错误 03");
}
finally
{
if (br != null) br.Close();
if (myFile != null) myFile.Close();
}
}
catch (Exception ex) {
Utils.Log4Net.Error(ex);
}
}
