// 获取sessionKey，没有则新创建一个
private static long GetSessionKey(HttpSessionStateBase session)
{
Object obj = session[JskeyUpload.UPLOAD_KEY];
long key = 0L;
if (obj != null)
{
try
{
key = Convert.ToInt64(obj);
if (key > 0)
{
session[JskeyUpload.UPLOAD_KEY] = key;
return(key);
}
}
catch
{
}
}
if (key > 0)
{
return(key);
}
key = JskeyUpload.GetNewSessionKey();
session[JskeyUpload.UPLOAD_KEY] = key;
return(key);
}
//删除文件或清空文件夹
private static Boolean Delete(String filePath)
{
try
{
Boolean success = true;
if (Directory.Exists(filePath))
{
DirectoryInfo dir = new DirectoryInfo(filePath);
dir.Attributes = FileAttributes.Normal & FileAttributes.Directory; // 去掉文件夹只读属性
foreach (FileInfo file in dir.GetFiles()) // 删除所有文件
{
File.SetAttributes(file.FullName, FileAttributes.Normal); // 去掉文件只读属性
File.Delete(file.FullName);
}
foreach (DirectoryInfo subDir in dir.GetDirectories()) // 删除所有子文件夹
{
success = JskeyUpload.Delete(subDir.FullName) && success;;
}
Directory.Delete(filePath); //删除自己
}
else if (File.Exists(filePath))
{
File.SetAttributes(filePath, FileAttributes.Normal); // 去掉文件只读属性
File.Delete(filePath);
}
return(success);
}
catch
{
return(false);
}
}
/// <summary>
/// 启动定时任务
/// </summary>
public void Run()
{
try
{
if (!JskeyUpload.UPLOAD_CLEAR)
{
return;
}
if (JskeyUpload.Count != 0) //启动中
{
return;
}
if (!JskeyUpload.ExistMapValue())
{
_timer.Stop();
return; //同样不需要启动
}
JskeyUpload.Count = 1; //标记启动
long currTime = DateTime.Now.Ticks;
IDictionaryEnumerator dictenum = JskeyUpload.jskeyUploadMap.GetEnumerator();
while (dictenum.MoveNext())
{
try
{
if ((currTime - Convert.ToInt64(dictenum.Value)) > JskeyUpload.UPLOAD_TIMEOUT_TICKS)
{
JskeyUpload.DelSessionKey(Convert.ToInt64(dictenum.Key)); //超时,移除
}
}
catch
{
}
}
if (!JskeyUpload.ExistMapValue()) //让再判断一次
{
_timer.Stop();
JskeyUpload.Count = 0;
log.Debug("--临时上传目录清理程序结束，清理完毕。--");
//Console.WriteLine("--临时上传目录清理程序结束，清理完毕。--");
}
}
catch
{
try
{
_timer.Stop();
}
finally
{
JskeyUpload.Count = 0;
log.Error("--临时上传目录清理程序异常结束。--");
//Console.WriteLine("--临时上传目录清理程序异常结束。--");
}
}
}
private static Timer GetTimer() //临时目录初始化，在服务器启动时执行
{
if (JskeyUpload.UPLOAD_CLEAR)
{
JskeyUpload.Delete(JskeyUpload.UPLOAD_SAVEPATH); //删除整个目录
}
Timer timer = new Timer(Convert.ToDouble(JskeyUpload.UPLOAD_TIMEOUT));
timer.Elapsed += new System.Timers.ElapsedEventHandler(delegate(Object source, ElapsedEventArgs e) { new JskeyUpload().Run(); });
timer.AutoReset = true;
timer.Enabled = true;
return(timer);
}
/// <summary>
/// 删除指定的临时子目录
/// </summary>
/// <param name="sessionKey">用户临时主目录</param>
/// <param name="fileKey">用户临时子目录</param>
/// <returns>Boolean</returns>
public static Boolean DelFile(long sessionKey, long fileKey)
{
try
{
if (sessionKey <= 0 || fileKey <= 0)
{
return(false);
}
JskeyUpload.Delete(JskeyUpload.UPLOAD_SAVEPATH + sessionKey + "/" + fileKey); //删除整个目录
return(true);
}
catch
{
}
return(false);
}
//删除整个临时上传目录
private static Boolean DelSessionKey(long sessionKey)
{
try
{
if (sessionKey <= 0)
{
return(false);
}
JskeyUpload.Delete(JskeyUpload.UPLOAD_SAVEPATH + sessionKey + "/");
JskeyUpload.RemoveSessionKey(sessionKey); //移除标识
return(true);
}
catch
{
JskeyUpload.RemoveSessionKey(sessionKey); //移除标识
}
return(false);
}