我有一个网络服务。我在该服务中使用了一些会话变量。
代码：
[WebMethod(EnableSession = true)]
public static string UploadFiles_Local(Dictionary<int, string> accFile)
{
string FilePath = "";
Dictionary<int, string> dicStatus = new Dictionary<int, string>();
Dictionary<int, string> dicUpload = new Dictionary<int, string>();
System.Web.HttpContext.Current.Session["uLocal"] = System.Web.HttpContext.Current.Server.MapPath("UplodedFiles") + "\\" + DateTime.Now.Ticks.ToString();
foreach (var f_l in accFile)
{
FilePath = f_l.Value;
string fName = FilePath.Substring(FilePath.LastIndexOf("\\") + 1, FilePath.Length - FilePath.LastIndexOf("\\") + 1);
//File reading
FileStream fs = new FileStream(FilePath, FileMode.Open, FileAccess.Read);
//Directory Existens checking
if (!Directory.Exists(System.Web.HttpContext.Current.Session["uLocal"].ToString()))
{
Directory.CreateDirectory(System.Web.HttpContext.Current.Session["uLocal"].ToString());
}
try
{
//Upload files
long FileSize = new FileInfo(FilePath).Length; // File size of file being uploaded.
string uploadFileName = new FileInfo(FilePath).Name; // File name
Byte[] buffer = new Byte[FileSize];
fs.Read(buffer, 0, buffer.Length);
fs.Close();
fs = null;
fs = File.Open(System.Web.HttpContext.Current.Session["uLocal"].ToString() + "\\" + fName, FileMode.OpenOrCreate);
BinaryWriter bw = new BinaryWriter(fs);
bw.Write(buffer);
bw.Close();
dicStatus.Add(f_l.Key, "File " + fName + ". Successfuly uploded to:" + System.Web.HttpContext.Current.Session["uLocal"].ToString() + "\\" + fName);
dicUpload.Add(f_l.Key, System.Web.HttpContext.Current.Session["uLocal"].ToString() + "\\" + fName);
}
catch (Exception ex)
{
if (fs != null)
{
fs.Close();
}
dicStatus.Add(f_l.Key, "File " + fName + ". Error in uploding to:" + System.Web.HttpContext.Current.Session["uLocal"].ToString() + "\\" + fName + "\r\nError :" + ex.Message);
}
finally
{
if (fs != null)
{
fs.Close();
}
}
}
if (dicUpload.Count > 0)
{
//Making rar of uploded files
ClsClass.RarFilesT(System.Web.HttpContext.Current.Session["uLocal"].ToString() + ".rar", dicUpload);
FilePath = System.Web.HttpContext.Current.Session["uLocal"].ToString() + ".rar";
}
else
{
FilePath = "Error";
}
return FilePath;
}
我已经在该 Web 服务中启用了会话，但是仍然收到错误消息：-
错误信息：-
'System.Web.HttpContext.Current' is null
我还需要从 globle.ashx 文件中调用此服务。