image.aspx.cs

自行开发的考核系统的后台数据库为sql2000。解压后是3个文件

using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Data.SqlClient;
using System.Drawing;
using System.Web;
using System.Text.RegularExpressions;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.Configuration;

namespace Web_Exam
{
	/// <summary>
	/// image 的摘要说明。
	/// </summary>
	public class image : System.Web.UI.Page
	{
		protected System.Web.UI.HtmlControls.HtmlInputFile UploadFile;
		protected System.Web.UI.HtmlControls.HtmlInputButton cmdOK;
	
		private void Page_Load(object sender, System.EventArgs e)
		{
			// 在此处放置用户代码以初始化页面
			if(!Page.IsPostBack)
			{
				if(Session["userRole"]==null)
				{
					Response.Write("<script>top.location.href='ManagerLogin.aspx';</script>"); 
					return;
				}
				string userRole="";
				if(!Page.IsPostBack)
				{
					userRole=Session["userRole"].ToString().Trim();
					if(userRole=="1")
					{
					}
					else
					{
						Page.Visible=false;
					}
				}
				
			}
		}

		#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.cmdOK.ServerClick += new System.EventHandler(this.cmdOK_ServerClick);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void cmdOK_ServerClick(object sender, System.EventArgs e)
		{
			int num=0;
			if (UploadFile.PostedFile.ContentType!="image/pjpeg" && UploadFile.PostedFile.ContentType!="image/bmp" && UploadFile.PostedFile.ContentType!="image/gif")
			{
				Response.Write("<script language=javascript>alert('对不起，目前本系统只支持jpg，bmp，gif三种格式的图形！')</script>");
				return;
			}
			string baseLocation = Server.MapPath("../../Exam_Image/"+Session["userId"].ToString().Trim()+"/"); // 上传路径
			if(!System.IO.Directory.Exists(baseLocation))
			{
				System.IO.Directory.CreateDirectory(baseLocation);
			}
			string fn = System.IO.Path.GetFileName(UploadFile.PostedFile.FileName);
			int tmp=fn.LastIndexOf('.');
			string Suffix=fn.Substring(tmp);
			string FullName=baseLocation+num+Suffix;
			while(System.IO.File.Exists(FullName))
			{
				num++;
				FullName=baseLocation+num+Suffix;
			}
			UploadFile.PostedFile.SaveAs(FullName);
			string   script="<script   language=javascript>image('"+"../Exam_Image/"+Session["userId"].ToString().Trim()+"/"+num+Suffix+"');</script>" ; 
			Page.RegisterStartupScript("test",script);
		}
	}
}