上传到服务器指定位置,路径保存到数据库的思路吧。求代码,谢谢了!!!
btw:DataGrid中怎样把图片按照指定格式显示?
btw:DataGrid中怎样把图片按照指定格式显示?
解决方案 »
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- 把页面显示的数据导入TXT和EXCEL里
- ASP中的时钟问题
http://dotnet.aspx.cc/ShowDetail.aspx?id=58EA3515-36F2-4FD9-AC89-EAF49F59816C
{
HttpFileCollection files = HttpContext.Current.Request.Files;
try
{
for(int iFile = 0; iFile < files.Count; iFile++)
{
HttpPostedFile postedFile = files[iFile];
string fileName;
fileName=System.IO.Path.GetFileName(postedFile.FileName);
if(fileName!="")
{
string FileOldName = Path.GetFileNameWithoutExtension(fileName);
string FileNewName=Path.GetFileNameWithoutExtension(Path.ChangeExtension(Path.GetTempFileName(),Path.GetExtension(fileName)));
string FileType=Path.GetExtension(fileName);
string FileSize = postedFile.ContentLength.ToString();
string rootPath=this.Request.PhysicalApplicationPath+"UploadedFiles"+@"\"+fileDiv;
string subDirectory=@"\"+DateTime.Now.Year.ToString() + DateTime.Now.Month.ToString();
CreateSubDirectory(rootPath + subDirectory);//创建目录
postedFile.SaveAs(rootPath + subDirectory +@"\"+FileNewName+FileType);//上传附件' string FileDirectory = "UploadedFiles"+@"\"+fileDiv +subDirectory + @"\"+FileNewName+FileType;
DBContextInfo dbi =DBContext.CreateConnection(Define.DBConntionKey);
DAHelper helper = new DAHelper();
strSQL="insert into info_File (FileOldName,FileNewName,FileType,FileSize,FilePath,UID,UserName) values ";
strSQL+="('"+FileOldName+"','"+FileNewName+"','"+FileType+"','"+FileSize+"','"+FileDirectory+"','"+Session["USER_ID"].ToString()+"','"+Session["USER_NAME"].ToString()+"')";
int k=helper.ExecuteNonQuery(dbi.Context,CommandType.Text,strSQL); //创建附件信息,(写入数据库)----还有关员号和关员姓名字段没添加
strSQL="select @@identity";//取得最新添加的自增ID
DataSet Ds=helper.ExecuteDataset(dbi.Context,CommandType.Text,strSQL);
FileId+=Ds.Tables[0].Rows[0][0].ToString()+",";//用来判断增加了多少条记录
}
}
return true;
}
catch(System.Exception Ex)
{
strStatus.Text = Ex.Message;
Success_Lbl.Text="NO"; //用来判断附件是否成功上传
return false;
}
}
public void CreateSubDirectory(string path)//---------创建目录
{
DirectoryInfo directoryInfo=new DirectoryInfo(path);
if(directoryInfo.Exists!=true)
directoryInfo.Create();
directoryInfo=null;
}
<asp:TemplateColumn Visible="False">
<ItemTemplate>
<img src="'<%# DataBinder.Eval(Container.DataItem, "Url") %>'">
</ItemTemplate>
</asp:TemplateColumn>
{
// Initialize variables
string sSavePath;
string sThumbExtension;
int intThumbWidth;
int intThumbHeight;
// Set constant values
sSavePath = "images/";
sThumbExtension = "_thumb";
intThumbWidth = 120;
intThumbHeight = 160;
// If file field isn’t empty
if (filUpload.PostedFile != null)
{
// Check file size (mustn’t be 0)
HttpPostedFile myFile = filUpload.PostedFile;
int nFileLen = myFile.ContentLength;
if (nFileLen == 0)
{
/*lblOutput.Text = "No file was uploaded.";
return;*/
string nopic = "nopic.JPG";
infoUp(nopic);
return;
}
// Check file extension (must be JPG or GIF)
if (System.IO.Path.GetExtension(myFile.FileName).ToLower() != ".jpg" & System.IO.Path.GetExtension(myFile.FileName).ToLower() !=".gif" &nFileLen != 0)
{
lblOutput.Text = "The file must have an extension of JPG or GIF";
return;
}
// Read file into a data stream
byte[] myData = new Byte[nFileLen];
myFile.InputStream.Read(myData,0,nFileLen);
// Make sure a duplicate file doesn’t exist. If it does, keep on appending an
// incremental numeric until it is unique
string sFilename = System.IO.Path.GetFileName(myFile.FileName);//得到上传文件名和扩展名
int file_append = 0;
while (System.IO.File.Exists(Server.MapPath(sSavePath + sFilename)))
{
file_append++;
if(System.IO.Path.GetExtension(myFile.FileName).ToLower() == ".jpg")//如果扩展名为".jpg"文件
{
sFilename = System.IO.Path.GetFileNameWithoutExtension(myFile.FileName)
+ file_append.ToString() + ".jpg";
}
if(System.IO.Path.GetExtension(myFile.FileName).ToLower() == ".gif")//如果扩展名为".gif"文件
{
sFilename = System.IO.Path.GetFileNameWithoutExtension(myFile.FileName)
+ file_append.ToString() + ".gif";
}
}
// Save the stream to disk
System.IO.FileStream newFile = new System.IO.FileStream(Server.MapPath(sSavePath + sFilename),
System.IO.FileMode.Create);
newFile.Write(myData,0, myData.Length);
newFile.Close();
// Check whether the file is really a JPEG by opening it
System.Drawing.Image.GetThumbnailImageAbort myCallBack =
new System.Drawing.Image.GetThumbnailImageAbort(ThumbnailCallback);
Bitmap myBitmap;
try
{
myBitmap = new Bitmap(Server.MapPath(sSavePath + sFilename));
// If jpg file is a jpeg, create a thumbnail filename that is unique.
string sThumbFile = "";
file_append = 0;
if(System.IO.Path.GetExtension(myFile.FileName).ToLower() == ".jpg")
{
sThumbFile = System.IO.Path.GetFileNameWithoutExtension(myFile.FileName)
+ sThumbExtension + ".jpg";
}
if(System.IO.Path.GetExtension(myFile.FileName).ToLower() == ".gif")
{
sThumbFile = System.IO.Path.GetFileNameWithoutExtension(myFile.FileName)
+ sThumbExtension + ".gif";
}
while (System.IO.File.Exists(Server.MapPath(sSavePath + sThumbFile)))
{
file_append++;
if(System.IO.Path.GetExtension(myFile.FileName).ToLower() == ".jpg")
{
sThumbFile = System.IO.Path.GetFileNameWithoutExtension(myFile.FileName) +
file_append.ToString() + sThumbExtension + ".jpg";
}
if(System.IO.Path.GetExtension(myFile.FileName).ToLower() == ".gif")
{
sThumbFile = System.IO.Path.GetFileNameWithoutExtension(myFile.FileName) +
file_append.ToString() + sThumbExtension + ".gif";
}
}
// Save thumbnail and output it onto the webpage
System.Drawing.Image myThumbnail = myBitmap.GetThumbnailImage(intThumbWidth,
intThumbHeight, myCallBack, IntPtr.Zero);
myThumbnail.Save (Server.MapPath(sSavePath + sThumbFile));
infoUp(sThumbFile);//调用infoUp添加数据
// Displaying success information
lblOutput.Text = "File uploaded successfully!";
// Destroy objects
myThumbnail.Dispose();
myBitmap.Dispose();
}
catch (ArgumentException errArgument)
{
// The file wasn't a valid jpg file
lblOutput.Text = "The file wasn't a valid jpg file.";
System.IO.File.Delete(Server.MapPath(sSavePath + sFilename));
}
}
}
public bool ThumbnailCallback()
{
return false;
}
图片处理其实有很多问题,如果只是简单的把图片传到数据库就可以的话,那是没必要那么麻烦了.RealSmart () 你把你的邮箱地址给我
我给你全部代码!
http://blog.csdn.net/sunnystar365/archive/2005/09/16/481963.aspx
如何读取保存在数据库中的图片显示在DataGrid中
http://blog.csdn.net/sunnystar365/archive/2005/09/16/481994.aspx