Go homepage(回首页) Upload pictures (上传图片) Write articles (发文字帖)
The author:(作者)delvpublished in(发表于) 2014/1/16 9:28:45 ASP.NET之上传文件管理策略_[Asp.Net教程]
最近做的项目跟ASP.NET上传文件内容有关,故将代码贴出,以便网友查阅,提供解决此类问题思路:如出现任何不理解问题,请留言,及时帮您解决!
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Login.aspx.cs" Inherits="Login" %>
::::上传管理系统:::: Text="上传管理"> onClick="ButtonUp_Click" /> 原文件名: 上传到服务器: 缩略图地址: 文件类型: 文件大小: 文件拓展名: 上传日期: 图片预览:
***************************************************************************
using System;using System.Data;using System.Configuration;using System.Collections;using System.Web;using System.Web.Security;using System.Web.UI;using System.Web.UI.WebControls;using System.Web.UI.WebControls.WebParts;using System.Web.UI.HtmlControls;
using MWO.Model.Info;using MWO.DAL.Info;public partial class Login : System.Web.UI.Page{ protected void Page_Load(object sender, EventArgs e) { } protected void ButtonUp_Click(object sender, EventArgs e) { if (FileUpload1.PostedFile.FileName != null) { try { FileName.InnerHtml = FileUpload1.PostedFile.FileName;//GetPhotoName UpDateTime.InnerHtml = DateTime.Now.ToShortDateString();//UpDateTime
#region SetPhotoSize FileLength.InnerHtml = CountSize(FileUpload1.PostedFile.ContentLength); if (FileUpload1.PostedFile.ContentLength > 1024 * 1024 * 2) { Response.Write(""); } else { #region SetPhotoFormat FileType.InnerHtml = FileUpload1.PostedFile.ContentType; FileExtention.InnerHtml = System.IO.Path.GetExtension(FileUpload1.PostedFile.FileName).ToUpper(); string m_FileName = "www.MWO.Com-" + DateTime.Now.ToString("yyyy-MM-dd-HH-mm-ss-ffff").Replace(".", "-") + FileExtention.InnerHtml; string m_sFileName = "www.MWO.Com-" + DateTime.Now.ToString("yyyy-MM-dd-HH-mm-ss-ffff").Replace(".", "-") + FileExtention.InnerHtml; if (FileExtention.InnerHtml == ".JPG") { string m_SavePath = Server.MapPath("./photo/") + m_FileName; SaveDir.InnerHtml = m_SavePath;
#region SetSmallPhoto this.MakeSmallImg(FileUpload1.PostedFile, this.Server.MapPath("./SPhoto/") + m_sFileName, 118, 90); string m_sSavePath = this.Server.MapPath("./SPhoto/") + m_sFileName; sSaveDir.InnerHtml = m_sSavePath; #endregion
FileUpload1.PostedFile.SaveAs(m_SavePath); Response.Write("");
#region SaveDataBasee PhotoInfo m_PInfo = new PhotoInfo(); m_PInfo.Organization = "5173"; m_PInfo.PicName = FileName.InnerHtml; m_PInfo.ServerName = "GLSDB"; m_PInfo.Cdate = DateTime.Now; m_PInfo.Exp = FileExtention.InnerHtml; m_PInfo.Flag = 0; m_PInfo.GameNickName = "Bruce";//TextBox控件内容 m_PInfo.MoonStar = 0; m_PInfo.ShowIndex = 0; m_PInfo.SPicHttpAddr = m_sSavePath; m_PInfo.Type = 0; m_PInfo.Vote = 0; m_PInfo.PicHttpAddr=m_SavePath;
PhotoDAO m_PDao = new PhotoDAO(); m_PDao.Insert(m_PInfo); #endregion } else { Response.Write(""); } #endregion } #endregion } catch (Exception m_Ex) { Response .Write (""); } } else if (FileUpload1.PostedFile.FileName == "") { Response.Write(""); } }
#region /// /// 计算文件大小函数,Size为字节大小 /// /// 初始文件大小 /// public string CountSize(long Size) { string m_strSize = ""; long FactSize = 0; FactSize = Size; if (FactSize <= 1024) m_strSize = FactSize.ToString() + "Byte"; if(FactSize>=1024&&FactSize<=1048576) m_strSize=(FactSize/1024).ToString ()+"K"; if (FactSize >= 1048576 && FactSize <= 10485760) m_strSize = (FactSize / 1024 / 1024).ToString() + "M"; return m_strSize; } #endregion
#region SaveSmallPhoto /// /// 高清晰缩略图算法 /// /// 图片文件对象 /// 要保存为缩略图的源文件 /// 宽度 /// 高度 public void MakeSmallImg(System.Web.HttpPostedFile postFile, string saveImg, System.Double Width, System.Double Height) {
//SourcePhotoName string m_OriginalFilename = postFile.FileName; string m_strGoodFile = saveImg;
//GetPhotoObject From SourceFile System.Drawing.Image m_Image = System.Drawing.Image.FromStream(postFile.InputStream, true);
System.Double NewWidth, NewHeight; if (m_Image.Width > m_Image.Height) { NewWidth = Width; NewHeight = m_Image.Height * (NewWidth / m_Image.Width); } else { NewHeight = Height; NewWidth = (NewHeight / m_Image.Height) * m_Image.Width; }
if (NewWidth > Width) { NewWidth = Width; } if (NewHeight > Height) { NewHeight = Height; }
//GetPhotoSize System.Drawing.Size size =new System.Drawing.Size((int)NewWidth, (int)NewHeight); //The New of Bimp Photo System.Drawing.Image bitmap = new System.Drawing.Bitmap(size.Width, size.Height); // The New of Palette System.Drawing.Graphics g = System.Drawing.Graphics.FromImage(bitmap); // Set HightQuality Arithmetic For Graphics g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.High; //设置高质量,低速度呈现平滑程度 g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality; //ClearCanvas g.Clear(System.Drawing.Color.White); //在指定位置画图 g.DrawImage(m_Image, new System.Drawing.Rectangle(0, 0, bitmap.Width, bitmap.Height), new System.Drawing.Rectangle(0, 0, m_Image.Width, m_Image.Height), System.Drawing.GraphicsUnit.Pixel);
//SavePhoto Of HightFocus bitmap.Save(m_strGoodFile, System.Drawing.Imaging.ImageFormat.Jpeg); //DisposeRes g.Dispose(); m_Image.Dispose(); bitmap.Dispose(); }
#endregion}
来源:网络
赞