//上傳時,判斷文件是否大於限定大小
if (this.FileUpload1.PostedFile.ContentLength > 104857600) //單位KB
{
objInsusJsUtility.JsAlert("You select the file larger than 100MB");
return;
}
//創建一個臨時文件夾
string tempPath = "~/Temp/";
//判斷目錄是否存在
if (!Directory.Exists(Server.MapPath(tempPath)))
{
//如果不存在,創建它
Directory.CreateDirectory(Server.MapPath(tempPath));
}
//取得上傳文件
string uploadfile = FileUpload1.PostedFile.FileName;
//取得原文件名,存入數據庫中,這樣在aspx顯示回原來的文件名
string oldFileName = uploadfile.Substring(uploadfile.LastIndexOf(@"/") + 1);
//取得文件的擴展名
string fileExtension = uploadfile.Substring(uploadfile.LastIndexOf("."));
//產生新文件名
string newFileName = objGuid.ToString() + fileExtension;
//建立存儲的目錄
string directory = Mediadirectory + this.ddlMediaType.SelectedItem.Value + "/";
//判斷目錄是否存在
if (!Directory.Exists(Server.MapPath(directory)))
{
//如果不存在,創建它
Directory.CreateDirectory(Server.MapPath(directory));
}
//新文件
string newFile = Server.MapPath(tempPath + newFileName);
//保存文件(暫存入一個臨時文件夾中)
FileUpload1.SaveAs(newFile);
//限定上傳的文件類型
string[] fileClass = { "7076", "4838" }; //7076 is FLV;4838 is wmv;
if (!InsusBase.CompareFileClass(newFile, fileClass))
{
objInsusJsUtility.JsAlert("You did not specify a media file.The file format is wmv,flv");
return;
}
try
{
//存入數據庫中
objMedia.Insert(this.ddlMediaType.SelectedItem.Value, this.txtSubject.Text.Trim(), this.txtDescription.Text.Trim(), directory, oldFileName, newFileName);
//把文件從臨時文件夾中,移至真正的目錄。
File.Move(newFile, Server.MapPath(directory + newFileName));
objInsusJsUtility.JsAlert("視頻上傳成功。", "this", "Media.aspx");
}
catch (Exception ex)
{
//拋出異常
InsusBase.InsusException(ex);
}
Web.config配置可上傳大文件,asp.net默認情況之下只能上傳4MB,另外一點就是,maxRequestLength單位是MB。
<system.web>
<httpRuntime maxRequestLength="102400" useFullyQualifiedRedirectUrl="true" minFreeThreads="8" minLocalRequestFreeThreads="4" appRequestQueueLimit="100" enableVersionHeader="true"/>
</system.web>