上传图片到 photo文件夹,在本机运行正常,但上传到服务器以后出现错误

Question

asp.net2.0 我就是把图片上传到 photo 文件夹
代码： 
try 
                { 
                        if   (FileUpload1.PostedFile.FileName   ==   " ") 
                        { 
                                this.lb_info.Text   =   "请选择文件！ "; 
                        } 
                        else 
                        { 
                                string   filepath   =   FileUpload1.PostedFile.FileName; 
                                string   filename   =   filepath.Substring(filepath.LastIndexOf( "\\ ")   +   1); 
                                //string   serverpath1   =   Server.MapPath( "images/ ")   +   filename; 
                                string   serverpath2   =   Server.MapPath( "images/ ")   +   System.DateTime.Now.ToString( "yyy-MM-dd-hh-mm-ss ")   +   Session.SessionID   +   filename; 
                                //     FileUpload1.PostedFile.SaveAs(serverpath1); 
                                Response.Write(filepath); 
                                ImageThumbnail   img   =   new   ImageThumbnail(filepath); 
                                img.ReducedImage(200,   200,   serverpath2);//0.4表示缩小40% 
                                this.lb_info.Text   =   "上传成功！ "; 
                        } 
                } 
                catch   (Exception   error) 
                { 
                        this.lb_info.Text   =   "上传发生错误！原因： "   +   error.ToString(); 
                } 
类代码： 
using   System; 
using   System.IO; 
using   System.Drawing; 
using   System.Drawing.Imaging; public   class   ImageThumbnail 
{ 
        public   Image   ResourceImage; 
        private   int   ImageWidth; 
        private   int   ImageHeight; 
        public   string   ErrorMessage;         public   ImageThumbnail(string   ImageFileName) 
        { 
                ResourceImage   =   Image.FromFile(ImageFileName); 
                ErrorMessage   =   " "; 
        }         public   bool   ThumbnailCallback() 
        { 
                return   false; 
        } 
        //   方法1，按大小 
        public   bool   ReducedImage(int   Width,   int   Height,   string   targetFilePath) 
        { 
                try 
                { 
                        Image   ReducedImage; 
                        Image.GetThumbnailImageAbort   callb   =   new   Image.GetThumbnailImageAbort(ThumbnailCallback); 
                        ReducedImage   =   ResourceImage.GetThumbnailImage(Width,   Height,   callb,   IntPtr.Zero); 
                        ReducedImage.Save(@targetFilePath,   ImageFormat.Jpeg); 
                        ReducedImage.Dispose(); 
                        return   true; 
                } 
                catch   (Exception   e) 
                { 
                        ErrorMessage   =   e.Message; 
                        return   false; 
                } 
        } 
        //   方法2，按百分比     缩小60%   Percent为0.6   targetFilePath为目标路径 
        public   bool   ReducedImage(double   Percent,   string   targetFilePath) 
        { 
                try 
                { 
                        Image   ReducedImage; 
                        Image.GetThumbnailImageAbort   callb   =   new   Image.GetThumbnailImageAbort(ThumbnailCallback); 
                        ImageWidth   =   Convert.ToInt32(ResourceImage.Width   *   Percent); 
                        ImageHeight   =   (ResourceImage.Height)   *   ImageWidth   /   ResourceImage.Width;//等比例缩放 
                        ReducedImage   =   ResourceImage.GetThumbnailImage(ImageWidth,   ImageHeight,   callb,   IntPtr.Zero); 
                        ReducedImage.Save(@targetFilePath,   ImageFormat.Jpeg); 
                        ReducedImage.Dispose(); 
                        return   true; 
                } 
                catch   (Exception   e) 
                { 
                        ErrorMessage   =   e.Message; 
                        return   false; 
                } 
        } 
} 
错误信息: 
上传发生错误！原因：System.IO.FileNotFoundException:   C:\Documents   and   Settings\Administrator\桌面\猫\13.jpg   在   System.Drawing.Image.FromFile(String   filename,   Boolean   useEmbeddedColorManagement)   在   System.Drawing.Image.FromFile(String   filename)   在   ImageThumbnail..ctor(String   ImageFileName)   位置   e:\wwwroot\App_Code\ImageThumbnail.cs:行号   15   在   admin_cus_manage_invete_edit.Button4_Click(Object   sender,   EventArgs   e)   位置   e:\wwwroot\admin\cus_manage\invete_edit.aspx.cs:行号   197 
问高手怎么该~~~

Answer 1

上传发生错误！原因：System.IO.FileNotFoundException: C:\Documents and Settings\new\桌面\肖像4.jpg 在 System.Drawing.Image.FromFile(String filename, Boolean useEmbeddedColorManagement) 在 System.Drawing.Image.FromFile(String filename) 在 Regedit.ImageThumbnail..ctor(String ImageFileName) 位置 d:\freehost\lianght7924\web\Regedit.aspx.vb:行号 171 在 Regedit.ButtonTJ_Click(Object sender, EventArgs e) 位置 d:\freehost\lianght7924\web\Regedit.aspx.vb:行号 100 

Answer 2

HttpContext.Current.Server.MapPath(@"photo\你的图片名")

Answer 3

System.IO.FileNotFoundException
未找到文件
路径错了 核对下吧

Answer 4

System.IO.FileNotFoundException: C:\Documents and Settings\new\桌面\肖像4.jpg从提示上来看 好象是说文件没找到，不要把图片放到桌面 上 ，放到 c盘或 D盘 根目录下 试一下。

Answer 5

我不是搞VB.Net的，但是我觉得你没必要忙着写路径来存。
你可以先Response出你的路径看看是否正确再来做。
在C#里用String serverpath1 = Server.MapPath("~/photo/") + filename;

Answer 6

 try
        {
            if (FileUpload1.PostedFile.FileName == " ")
            {
                this.lb_info.Text = "请选择文件！ ";
            }
            else
            {
                string filepath = FileUpload1.PostedFile.FileName;
                //string  filename  =  filepath.Substring(filepath.LastIndexOf( "\\ ")  +  1);
                string filename = filepath.Substring(filepath.LastIndexOf("\\") + 1);
                //string  serverpath1  =  Server.MapPath( "images/ ")  +  filename; 
                string serverpath2 = Server.MapPath("images/ ") + System.DateTime.Now.ToString("yyy-MM-dd-hh-mm-ss ") + Session.SessionID + filename;
                FileUpload1.PostedFile.SaveAs(serverpath2); 
                Response.Write(filepath);
                ImageThumbnail img = new ImageThumbnail(filepath);
                img.ReducedImage(200, 200, serverpath2);//0.4表示缩小40% 
                this.lb_info.Text = "上传成功！ ";
            }
        }
        catch (Exception error)
        {
            this.lb_info.Text = "上传发生错误！原因： " + error.ToString();
        }
===========================
楼主的这个地方好像多了一个空格，造成获取文件文件名字是错误。楼主可以看一下是不是这个问题。