UploadFile上传图片-【控件简单应用】

protected   void  Button1_Click( object  sender, EventArgs e)
        {
             if  (FileUpload1.HasFile)
            {
                 string  fileContentType  =  FileUpload1.PostedFile.ContentType;
                 if  (fileContentType  ==   " image/bmp "   ||  fileContentType  ==   " image/gif "   ||  fileContentType  ==   " image/pjpeg " )
                {
                     string  name  =  FileUpload1.PostedFile.FileName;                   //  客户端文件路径

                    FileInfo file  =   new  FileInfo(name);
                     string  fileName  =  file.Name;                                     //  文件名称
                     string  webFilePath  =  Server.MapPath( " file/ "   +  fileName);         //  服务器端文件路径


                     if  ( ! File.Exists(webFilePath))
                    {
                         try
                        {
                            FileUpload1.SaveAs(webFilePath);                                 //  使用 SaveAs 方法保存文件
                     
                            Label1.Text  =   " 提示：文件“ "   +  fileName  +   " ”成功上传，文件类型为： "   +  FileUpload1.PostedFile.ContentType  +   " ，文件大小为： "   +  FileUpload1.PostedFile.ContentLength  +   " B " ;
                        }
                         catch  (Exception ex)
                        {
                            Label1.Text  =   " 提示：文件上传失败，失败原因： "   +  ex.Message;
                        }
                    }
                     else
                    {
                        Label1.Text  =   " 提示：文件已经存在，请重命名后上传 " ;
                    }
                }
                 else
                {
                    Label1.Text  =   " 提示：文件类型不符 " ;
                }
            }


        }

 

转载于:https://www.cnblogs.com/master-zhu/archive/2010/07/23/1783759.html