zoukankan      html  css  js  c++  java
  • 上传图片包括缩略图

     private string GetImgPath()
            {
                string savePath = "images";

                System.IO.MemoryStream memStream = new System.IO.MemoryStream();
                System.Drawing.Image imgPhoto = null;
                try
                {
                    memStream.Write(imgUpload.FileBytes, 0, imgUpload.FileBytes.Length);//存入内存流中
                    imgPhoto = System.Drawing.Image.FromStream(memStream);//创建图形流
                }
                catch
                {
                    imgPhoto = null;
                }
                if (imgPhoto == null)
                {
                    return "";
                }
                imgUpload.Dispose();
                string fileName = Guid.NewGuid().ToString() + ".jpg";
                string smallName = fileName.Substring(0, fileName.LastIndexOf(".")) + "_small.jpg";
                int iWidth = 100;
                if (imgPhoto.Width > iWidth)
                {
                    System.Drawing.Image.GetThumbnailImageAbort abort = new System.Drawing.Image.GetThumbnailImageAbort(GetBool);
                    int iHeight = (int)((float)iWidth / imgPhoto.Width * imgPhoto.Height);
                    System.Drawing.Image smallImg = imgPhoto.GetThumbnailImage(iWidth, iHeight, abort, new IntPtr());
                    smallImg.Save(Server.MapPath("~/") + savePath + "\\" + smallName);
                    smallImg.Dispose();
                }
                imgPhoto.Save(Server.MapPath("~/") + savePath + "\\" + fileName);
                imgPhoto.Dispose();
                return fileName;
            }

  • 相关阅读:
    web.xml
    ibatis配置
    ibatis基本语法
    XML文件解析
    进制转换
    BaseAction
    【编译】StreamInsight简介
    秒懂C#通过Emit动态生成代码
    百度地图应用开发(二)
    ListView与Adapter的那些事儿
  • 原文地址:https://www.cnblogs.com/hqbird/p/1305582.html
Copyright © 2011-2022 走看看