upimage.aspx.cs

如果遇到MD5加密文件(一般都是这个)

using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;

namespace Lb_news
{
	/// <summary>
	/// upImage 的摘要说明。
	/// </summary>
	public class upFile : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.Button btnUp;

		protected string imagePath;
		//图片类型
		protected string imageType;
		//图片名称
		protected string mPath;
     
		protected int IsIndexPic=0;

		protected string imageName;
		protected string number;
		protected string time1;
		protected string time2;
		protected System.Web.UI.HtmlControls.HtmlInputFile upFile1;
		protected System.Web.UI.WebControls.Button cha;
		protected int Ispic=0;
		protected string time3;
		protected Conn ds1=new Conn();

		//定义image类的对象
		System.Drawing.Image image,newimage;

		System.Drawing.Image.GetThumbnailImageAbort callb = null;

		private void Page_Load(object sender, System.EventArgs e)
		{
			// 在此处放置用户代码以初始化页面

     


		}

		#region Web 窗体设计器生成的代码
		override protected void OnInit(EventArgs e)
		{
			//
			// CODEGEN: 该调用是 ASP.NET Web 窗体设计器所必需的。
			//
			InitializeComponent();
			base.OnInit(e);
		}
		
		/// <summary>
		/// 设计器支持所需的方法 - 不要使用代码编辑器修改
		/// 此方法的内容。
		/// </summary>
		private void InitializeComponent()
		{    
			this.btnUp.Click += new System.EventHandler(this.btnUp_Click);
			this.ID = "upFile";
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void btnUp_Click(object sender, System.EventArgs e)
		{
			
			
			string ImageSum=Request["Type"].ToString();
			
			Random rnd=new Random();
            
			number=rnd.Next(1,9999).ToString();
			if (number.Length<2)
			{
				number="000"+number;	
			}
			else if (number.Length<3)
			{
				number="00"+number;
			}
			else if (number.Length<4)
			{
			
				number="0"+number;
			}
			 
			time1=DateTime.Now.ToString().Replace(":","").Replace("-","").Replace(" ","");
		
			imageName=time1+number;
		

			if( upFile1.PostedFile.FileName !="" )
			{


				imagePath= upFile1.PostedFile.FileName;
				//取得图片类型
				imageType= imagePath.Substring(imagePath.LastIndexOf(".")+1);
				//取得图片名称
				imageName =imageName+"."+imageType ;
				//判断是否是JPG或者GIF图片,这里只是举个例子,并不一定必须是这两种图片
				if( imageType != "jpg" && imageType != "gif" && imageType != "JPG" && imageType != "GIF")
				{
					Response.Write("<script language='javascript'> alert('对不起！785请您选择jpg或者gif格式的图片！');</script>");
					return;
				}
				else
				{
					try
					{
						//建立虚拟路径
						mPath=Server.MapPath("upfile");
						//保存到虚拟路径`
						upFile1.PostedFile.SaveAs(mPath+"\\"+imageName);
						//显示原图
						string pathAll="upfile"+"/"+imageName;
						Response.Write (pathAll);

	
						if(ImageSum=="two")
						{
                             
							
							image=System.Drawing.Image.FromFile(mPath+"\\"+imageName);			
							//生成缩略图
							newimage=image.GetThumbnailImage(120,100,callb,new System.IntPtr());
							//把缩略图保存到指定的虚拟路径
							newimage.Save(Server.MapPath("upFile")+"\\s"+imageName);
							//释放image对象占用的资源
							image.Dispose();
							//释放newimage对象的资源
							newimage.Dispose();
							Response.Write("上传成功!");
							string pathSmall="upfile"+"/s"+imageName;
							//	Response.Write ("<script>opener.window.document.bgColor='red';</script>");
							//Response.Write ("<script>opener.window.document.postform.test.value='haha';</script>");
							//btnUp.Attributes.Add("OnClick", "opener.window.document.postform.test1.value='haha';");
							Response.Write ("<script>opener.window.document.postform.Lb_TitlePic.value='"+pathSmall+"';</script>");
							Response.Write ("<script>opener.content1.focus();opener.content1.document.selection.createRange().pasteHTML('<img src="+pathAll+">');opener.content1.focus();</script>");
							Response.Write ("<script>self.close();</script>");
					
						}
						else
						{
							Response.Write("上传成功!");
							//	Response.Write ("<script>opener.window.document.bgColor='red';</script>");
							//Response.Write ("<script>opener.window.document.postform.test.value='haha';</script>");
							//btnUp.Attributes.Add("OnClick", "opener.window.document.postform.test1.value='haha';");
							Response.Write ("<script>opener.window.document.postform.Lb_TitlePic.value='"+pathAll+"';</script>");
							Response.Write ("<script>opener.content1.focus();opener.content1.document.selection.createRange().pasteHTML('<img src="+pathAll+">');opener.content1.focus();</script>");
							Response.Write ("<script>self.close();</script>");
						}
					}
					catch
					{
						Response.Write("上传成功!");
					}
					
				}
			}
			
		}

	


	}
}