public static int SaveUploadFile(
System.Web.UI.Page page,
LibraryChannel channel,
string strXmlRecPath,
string strFileID,
string strResTimeStamp,
HttpPostedFile postedFile,
int nLogoLimitW,
int nLogoLimitH,
out string strError)
{
strError = "";
if (String.IsNullOrEmpty(postedFile.FileName) == true
&& postedFile.ContentLength == 0)
{
return 0; // 没有必要保存
}
WebPageStop stop = new WebPageStop(page);
string strResPath = strXmlRecPath + "/object/" + strFileID;
string strLocalFileName = Path.GetTempFileName();
try
{
using (Stream t = File.Create(strLocalFileName))
{
// 缩小尺寸
int nRet = GraphicsUtil.ShrinkPic(postedFile.InputStream,
postedFile.ContentType,
nLogoLimitW,
nLogoLimitH,
true,
t,
out strError);
if (nRet == -1)
return -1;
if (nRet == 0) // 没有必要缩放
{
postedFile.InputStream.Seek(0, SeekOrigin.Begin);
StreamUtil.DumpStream(postedFile.InputStream, t);
}
}
// t.Close();
// 检测文件尺寸
FileInfo fi = new FileInfo(strLocalFileName);
if (fi.Exists == false)
{
strError = "文件 '" + strLocalFileName + "' 不存在...";
return -1;
}
string[] ranges = null;
if (fi.Length == 0)
{ // 空文件
ranges = new string[1];
ranges[0] = "";
}
else
{
string strRange = "";
strRange = "0-" + Convert.ToString(fi.Length - 1);
// 按照100K作为一个chunk
ranges = RangeList.ChunkRange(strRange,
100 * 1024);
}
byte[] timestamp = ByteArray.GetTimeStampByteArray(strResTimeStamp);
byte[] output_timestamp = null;
// 2007/12/13
string strLastModifyTime = DateTime.UtcNow.ToString("u");
string strLocalPath = postedFile.FileName;
// page.Response.Write("<br/>正在保存" + strLocalPath);
REDOWHOLESAVE:
string strWarning = "";
for (int j = 0; j < ranges.Length; j++)
{
REDOSINGLESAVE:
// Application.DoEvents(); // 出让界面控制权
if (stop.State != 0)
{
strError = "用户中断";
goto ERROR1;
}
string strWaiting = "";
if (j == ranges.Length - 1)
strWaiting = " 请耐心等待...";
string strPercent = "";
RangeList rl = new RangeList(ranges[j]);
if (rl.Count >= 1)
{
double ratio = (double)((RangeItem)rl[0]).lStart / (double)fi.Length;
strPercent = String.Format("{0,3:N}", ratio * (double)100) + "%";
}
if (stop != null)
stop.SetMessage("正在上载 " + ranges[j] + "/"
+ Convert.ToString(fi.Length)
+ " " + strPercent + " " + strLocalFileName + strWarning + strWaiting);
// page.Response.Write("."); // 防止前端因等待过久而超时
long lRet = channel.SaveResObject(
stop,
strResPath,
strLocalFileName,
strLocalPath,
postedFile.ContentType,
ranges[j],
j == ranges.Length - 1 ? true : false, // 最尾一次操作，提醒底层注意设置特殊的WebService API超时时间
timestamp,
out output_timestamp,
out strError);
/*
long lRet = channel.DoSaveResObject(strResPath,
strLocalFileName,
strLocalPath,
postedFile.ContentType,
strLastModifyTime,
ranges[j],
j == ranges.Length - 1 ? true : false, // 最尾一次操作，提醒底层注意设置特殊的WebService API超时时间
timestamp,
out output_timestamp,
out strError);
* */
timestamp = output_timestamp;
// DomUtil.SetAttr(node, "__timestamp", ByteArray.GetHexTimeStampString(timestamp));
strWarning = "";
if (lRet == -1)
{
if (channel.ErrorCode == CirculationClient.localhost.ErrorCode.TimestampMismatch)
{
timestamp = new byte[output_timestamp.Length];
Array.Copy(output_timestamp, 0, timestamp, 0, output_timestamp.Length);
strWarning = " (时间戳不匹配, 自动重试)";
if (ranges.Length == 1 || j == 0)
goto REDOSINGLESAVE;
goto REDOWHOLESAVE;
}
goto ERROR1;
}
}
return 1; // 已经保存
ERROR1:
return -1;
}
finally
{
// 不要忘记删除临时文件
File.Delete(strLocalFileName);
}
}
