zoukankan      html  css  js  c++  java
  • ASP.NET

    /// <summary>
    /// 上传图片
    /// </summary>
    /// <param name="fileupload">上传的控件</param>
    /// <param name="folder">要存储的文件夹(要在服务器已经存在)</param>
    /// <param name="imageName">图片名称</param>
    /// <returns></returns>
    public string UploadImage(FileUpload fileupload, string folder, string imageName)
    {
        Boolean fileOK = false;
        String path = Server.MapPath("~/" + folder + "/");
        if (fileupload.HasFile)
        {
            String fileExtension =
                System.IO.Path.GetExtension(fileupload.FileName).ToLower();
            String[] allowedExtensions = { ".gif", ".png", ".jpeg", ".jpg" };
            for (int i = 0; i < allowedExtensions.Length; i++)
            {
                if (fileExtension == allowedExtensions[i])
                {
                    fileOK = true;
                }
            }
        }
        else
        {
            return "请选择要上传的文件!";
        }
    
        if (fileOK)
        {
            try
            {
                string ImagesPath = path + imageName + Path.GetExtension(fileupload.FileName);
                fileupload.PostedFile.SaveAs(ImagesPath);
                return "上传成功!";
            }
            catch
            {
                return "上传失败!";
            }
        }
        else
        {
            return "只能上传 .gif, .png, .jpeg, .jpg 等类型图片!";
        }
    }
    

      

  • 相关阅读:
    数据结构解决哈希冲突方法回顾
    java线程池大小分配方案
    java线程池工作原理
    非对称密码体制
    java ThreadLocal
    jvm配置参数
    定时器深入讲解
    开发笔记三
    开发笔记二
    js证书批量生成与打包下载
  • 原文地址:https://www.cnblogs.com/KTblog/p/4701336.html
Copyright © 2011-2022 走看看